U Apple macOS 14 V2R2

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All (155)

Highs (10)

Mediums (143)

Lows (2)

UNCLASSIFIED

Group Title

SRG-OS-000028-GPOS-00009

Group ID

V-259418

Rule Version

APPL-14-000001

Rule Title

The macOS system must prevent Apple Watch from terminating a session lock.

Rule ID

SV-259418r958400_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Disabling Apple watches is a necessary step to ensuring that the information system retains a session lock until the user reestablishes access using authorized identification and authentication procedures.

Documentable

False

Check Content

Verify the macOS system is configured to prevent Apple Watch from terminating a session lock with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowAutoUnlock').js

EOS

If the result is not "false", this is a finding.

Check System

C-63157r940874_chk

Fix Reference

F-63065r940875_fix

Fix Text

Configure the macOS system to prevent Apple Watch from terminating a session lock by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000056

Retain the device lock until the user reestablishes access using established identification and authentication procedures.

800-53 :: AC-11 b
800-53 Rev. 4 :: AC-11 b
800-53 Rev. 5 :: AC-11 b
800-53A :: AC-11.1 (iii)

Group Title

SRG-OS-000028-GPOS-00009

Group ID

V-259419

Rule Version

APPL-14-000002

Rule Title

The macOS system must enforce screen saver password.

Rule ID

SV-259419r958400_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Users must authenticate when unlocking the screen saver.

The screen saver acts as a session lock and prevents unauthorized users from accessing the current user's account.

Documentable

False

Check Content

Verify the macOS system is configured to prompt users to enter a password to unlock the screen saver with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.screensaver')\

.objectForKey('askForPassword').js

EOS

If the result is not "true", this is a finding.

Check System

C-63158r940877_chk

Fix Reference

F-63066r940878_fix

Fix Text

Configure the macOS system to prompt users to enter a password to unlock the screen saver by installing the "com.apple.screensaver" configuration profile.

Identities

CCI-000056

Retain the device lock until the user reestablishes access using established identification and authentication procedures.

800-53 :: AC-11 b
800-53 Rev. 4 :: AC-11 b
800-53 Rev. 5 :: AC-11 b
800-53A :: AC-11.1 (iii)

Group Title

SRG-OS-000028-GPOS-00009

Group ID

V-259420

Rule Version

APPL-14-000003

Rule Title

The macOS system must enforce session lock no more than five seconds after screen saver is started.

Rule ID

SV-259420r958400_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

A screen saver must be enabled and the system must be configured to require a password to unlock once the screensaver has been on for a maximum of five seconds.

An unattended system with an excessive grace period is vulnerable to a malicious user.

Documentable

False

Check Content

Verify the macOS system is configured to initiate a session lock within five seconds of the screen saver starting with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let delay = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.screensaver')\

.objectForKey('askForPasswordDelay'))

if ( delay <= 5 ) {

return("true")

} else {

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63159r940880_chk

Fix Reference

F-63067r940881_fix

Fix Text

Configure the macOS system to initiate a session lock within five seconds of the screen saver starting by installing the "com.apple.screensaver" configuration profile.

Identities

CCI-000056

Retain the device lock until the user reestablishes access using established identification and authentication procedures.

800-53 :: AC-11 b
800-53 Rev. 4 :: AC-11 b
800-53 Rev. 5 :: AC-11 b
800-53A :: AC-11.1 (iii)

Group Title

SRG-OS-000030-GPOS-00011

Group ID

V-259421

Rule Version

APPL-14-000005

Rule Title

The macOS system must configure user session lock when a smart token is removed.

Rule ID

SV-259421r1009577_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The screen lock must be configured to initiate automatically when the smart token is removed from the system.

Session locks are temporary actions taken when users stop work and move away from the immediate vicinity of the information system but do not want to log out because of the temporary nature of their absence. While a session lock is not an acceptable substitute for logging out of an information system for longer periods of time, they prevent a malicious user from accessing the information system when a user has removed their smart token.

Documentable

False

Check Content

Verify the macOS system is configured to lock the user session when a smart token is removed with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.security.smartcard')\

.objectForKey('tokenRemovalAction').js

EOS

If the result is not "1", this is a finding.

Check System

C-63160r940883_chk

Fix Reference

F-63068r940884_fix

Fix Text

Configure the macOS system to lock the user session when a smart token is removed by installing the "com.apple.security.smartcard" configuration profile.

Note: To ensure continued access to the operating system, consult the supplemental guidance provided with the STIG before applying the configuration profile.

Identities

CCI-000057

The information system initiates a session lock after the organization-defined time period of inactivity.

800-53 :: AC-11 a
800-53 Rev. 4 :: AC-11 a
800-53 Rev. 5 :: AC-11 a
800-53A :: AC-11.1 (ii)

CCI-000058

The information system provides the capability for users to directly initiate session lock mechanisms.

800-53 :: AC-11 a
800-53 Rev. 4 :: AC-11 a
800-53A :: AC-11

Group Title

SRG-OS-000031-GPOS-00012

Group ID

V-259422

Rule Version

APPL-14-000007

Rule Title

The macOS system must disable hot corners.

Rule ID

SV-259422r958404_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Hot corners must be disabled.

The information system conceals, via the session lock, information previously visible on the display with a publicly viewable image. Although hot corners can be used to initiate a session lock or to launch useful applications, they can also be configured to disable an automatic session lock from initiating. Such a configuration introduces the risk that a user might forget to manually lock the screen before stepping away from the computer.

Documentable

False

Check Content

Verify the macOS system is configured to disable hot corners with the following command:

/usr/bin/profiles -P -o stdout | /usr/bin/grep -Ec '"wvous-bl-corner" = 0|"wvous-br-corner" = 0|"wvous-tl-corner" = 0|"wvous-tr-corner" = 0'

If the result is not "4", this is a finding.

Check System

C-63161r940886_chk

Fix Reference

F-63069r940887_fix

Fix Text

Configure the macOS system to disable hot corners by installing the "com.apple.ManagedClient.preferences" configuration profile.

Identities

CCI-000060

Conceal, via the device lock, information previously visible on the display with a publicly viewable image.

800-53 :: AC-11 (1)
800-53 Rev. 4 :: AC-11 (1)
800-53 Rev. 5 :: AC-11 (1)
800-53A :: AC-11 (1).1

Group Title

SRG-OS-000029-GPOS-00010

Group ID

V-259423

Rule Version

APPL-14-000009

Rule Title

The macOS system must prevent AdminHostInfo from being available at LoginWindow.

Rule ID

SV-259423r958402_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system must be configured to not display sensitive information at the LoginWindow. The key AdminHostInfo when configured will allow the HostName, IP Address, and operating system version and build to be displayed.

Documentable

False

Check Content

Verify the macOS system is configured to prevent AdminHostInfo from being available at LoginWindow with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow')\

.objectIsForcedForKey('AdminHostInfo')

EOS

If the result is not "false", this is a finding.

Check System

C-63162r940889_chk

Fix Reference

F-63070r940890_fix

Fix Text

Configure the macOS system to prevent AdminHostInfo from being available at LoginWindow by installing the "com.apple.loginwindow" configuration profile.

Identities

CCI-000057

The information system initiates a session lock after the organization-defined time period of inactivity.

800-53 :: AC-11 a
800-53 Rev. 4 :: AC-11 a
800-53 Rev. 5 :: AC-11 a
800-53A :: AC-11.1 (ii)

Group Title

SRG-OS-000002-GPOS-00002

Group ID

V-259424

Rule Version

APPL-14-000012

Rule Title

The macOS system must automatically remove or disable temporary or emergency user accounts within 72 hours.

Rule ID

SV-259424r958364_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS is able to be configured to set an automated termination for 72 hours or less for all temporary or emergency accounts upon account creation.

Emergency administrator accounts are privileged accounts established in response to crisis situations where the need for rapid account activation is required. Therefore, emergency account activation may bypass normal account authorization processes. If these accounts are disabled, system maintenance during emergencies may not be possible, thus adversely affecting system availability.

Although the ability to create and use emergency administrator accounts is necessary for performing system maintenance during emergencies, these accounts present vulnerabilities to the system if they are not disabled and removed when they are no longer needed. Configuring the macOS to automatically remove or disable emergency accounts within 72 hours of creation mitigates the risks posed if one were to be created and accidentally left active once the crisis is resolved.

Emergency administrator accounts are different from infrequently used accounts (i.e., local logon accounts used by system administrators when network or normal logon is not available). Infrequently used accounts also remain available and are not subject to automatic termination dates. However, an emergency administrator account is normally a different account created for use by vendors or system maintainers.

To address access requirements, many operating systems can be integrated with enterprise-level authentication/access mechanisms that meet or exceed access control policy requirements.

If temporary or emergency user accounts remain active when no longer needed or for an excessive period, these accounts may be targeted by attackers to gain unauthorized access. To mitigate this risk, automated termination of all temporary or emergency accounts must be set to 72 hours (or less) when the temporary or emergency account is created.

If no policy is enforced by a directory service, a password policy can be set with the "pwpolicy" utility. The variable names may vary depending on how the policy was set.

If there are no temporary or emergency accounts defined on the system, this is Not Applicable.

Satisfies: SRG-OS-000002-GPOS-00002,SRG-OS-000123-GPOS-00064

Documentable

False

Check Content

Verify if a password policy is enforced by a directory service by asking the system administrator (SA) or information system security officer (ISSO).

If no policy is enforced by a directory service, a password policy can be set with the "pwpolicy" utility. The variable names may vary depending on how the policy was set.

If there are no temporary or emergency accounts defined on the system, this is Not Applicable.

To check if the password policy is configured to disable a temporary or emergency account after 72 hours, run the following command to output the password policy to the screen, substituting the correct user name in place of username:

/usr/bin/pwpolicy -u username getaccountpolicies | tail -n +2

If there is no output, and password policy is not controlled by a directory service, this is a finding.

Otherwise, look for the line "<key>policyCategoryAuthentication</key>".

In the array that follows, there should be a <dict> section that contains a check <string> that allows users to log in if "policyAttributeCurrentTime" is less than the result of adding "policyAttributeCreationTime" to 72 hours (259299 seconds). The check might use a variable defined in its "policyParameters" section.

If the check does not exist or if the check adds too great an amount of time to "policyAttributeCreationTime", this is a finding.

Check System

C-63163r940892_chk

Fix Reference

F-63071r940893_fix

Fix Text

This setting may be enforced using local policy or by a directory service.

To set local policy to disable a temporary or emergency user, create a plain text file containing the following:

<dict>

<key>policyCategoryAuthentication</key>

<array>

<dict>

<key>policyContent</key>

<string>policyAttributeCurrentTime < policyAttributeCreationTime+259299</string>

<key>policyIdentifier</key>

<string>Disable Tmp Accounts </string>

</dict>

</array>

</dict>

After saving the file and exiting to the command prompt, run the following command to load the new policy file, substituting the correct user name in place of "username" and the path to the file in place of "/path/to/file".

/usr/bin/pwpolicy -u username setaccountpolicies /path/to/file

Identities

CCI-000016

Automatically remove or disable temporary and emergency accounts after an organization-defined time-period for each type of account.

800-53 :: AC-2 (2)
800-53 Rev. 4 :: AC-2 (2)
800-53 Rev. 5 :: AC-2 (2)
800-53A :: AC-2 (2).1 (ii)

CCI-001682

Automatically removes or disables emergency accounts after an organization-defined time period for each type of account.

800-53 :: AC-2 (2)
800-53 Rev. 4 :: AC-2 (2)
800-53 Rev. 5 :: AC-2 (2)
800-53A :: AC-2 (2).1 (ii)

Group Title

SRG-OS-000355-GPOS-00143

Group ID

V-259425

Rule Version

APPL-14-000014

Rule Title

The macOS system must enforce time synchronization.

Rule ID

SV-259425r1009578_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Time synchronization must be enforced on all networked systems.

This rule ensures the uniformity of time stamps for information systems with multiple system clocks and systems connected over a network.

Satisfies: SRG-OS-000355-GPOS-00143,SRG-OS-000356-GPOS-00144

Documentable

False

Check Content

Verify the macOS system is configured to enforce time synchronization with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.timed')\

.objectForKey('TMAutomaticTimeOnlyEnabled').js

EOS

If the result is not "true", this is a finding.

Check System

C-63164r940895_chk

Fix Reference

F-63072r940896_fix

Fix Text

Configure the macOS system to enforce time synchronization by installing the "com.apple.timed" configuration profile.

Identities

CCI-001891

The information system compares internal information system clocks on an organization-defined frequency with an organization-defined authoritative time source.

800-53 Rev. 4 :: AU-8 (1) (a)

CCI-002046

The information system synchronizes the internal system clocks to the authoritative time source when the time difference is greater than the organization-defined time period.

800-53 Rev. 4 :: AU-8 (1) (b)

CCI-004922

Synchronize system clocks within and between systems or system components.

800-53 Rev. 5 :: SC-45

CCI-004923

Compare the internal system clocks on an organization-defined frequency with organization-defined authoritative time source.

800-53 Rev. 5 :: SC-45 (1) (a)

CCI-004926

Synchronize the internal system clocks to the authoritative time source when the time difference is greater than organization-defined time period.

800-53 Rev. 5 :: SC-45 (1) (b)

Group Title

SRG-OS-000021-GPOS-00005

Group ID

V-259428

Rule Version

APPL-14-000022

Rule Title

The macOS system must limit consecutive failed log on attempts to three.

Rule ID

SV-259428r958388_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to limit the number of failed log on attempts to a maximum of three. When the maximum number of failed attempts is reached, the account must be locked for a period of time after.

This rule protects against malicious users attempting to gain access to the system via brute-force hacking methods.

Satisfies: SRG-OS-000021-GPOS-00005,SRG-OS-000329-GPOS-00128

Documentable

False

Check Content

Verify the macOS system is configured to limit consecutive failed log on attempts to three with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath '//dict/key[text()="policyAttributeMaximumFailedAuthentications"]/following-sibling::integer[1]/text()' - | /usr/bin/awk '{ if ($1 <= 3) {print "yes"} else {print "no"}}'

If the result is not "yes", this is a finding.

Check System

C-63167r940904_chk

Fix Reference

F-63075r940905_fix

Fix Text

Configure the macOS system to limit consecutive failed log on attempts to three by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile or by a directory service.

Identities

CCI-000044

Enforce the organization-defined limit of consecutive invalid logon attempts by a user during the organization-defined time period.

800-53 :: AC-7 a
800-53 Rev. 4 :: AC-7 a
800-53 Rev. 5 :: AC-7 a
800-53A :: AC-7.1 (ii)

CCI-002238

Automatically lock the account or node for either an organization-defined time period, until the locked account or node is released by an administrator, or delays the next logon prompt according to the organization-defined delay algorithm when the maximum number of unsuccessful logon attempts is exceeded.

800-53 Rev. 4 :: AC-7 b
800-53 Rev. 5 :: AC-7 b

Group Title

SRG-OS-000023-GPOS-00006

Group ID

V-259429

Rule Version

APPL-14-000023

Rule Title

The macOS system must display the Standard Mandatory DOD Notice and Consent Banner at remote log on.

Rule ID

SV-259429r958390_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Displaying a standardized and approved use notification before granting access to the operating system ensures that users are provided with privacy and security notification verbiage that is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.

System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.

The banner must be formatted in accordance with DTM-08-060.

Satisfies: SRG-OS-000023-GPOS-00006,SRG-OS-000024-GPOS-00007

Documentable

False

Check Content

Verify the macOS system is configured to display the Standard Mandatory DOD Notice and Consent Banner before granting remote access to the operating system.

Verify the operating system has the correct text listed in the "/etc/banner" file with the following command:

/usr/bin/more /etc/banner

The command must return the following text:

"You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only.

By using this IS (which includes any device attached to this IS), you consent to the following conditions:

-The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations.

-At any time, the USG may inspect and seize data stored on this IS.

-Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose.

-This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy.

-Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details."

If the operating system does not display a logon banner before granting remote access or the banner does not match the Standard Mandatory DOD Notice and Consent Banner, this is a finding.

If the text in the "/etc/banner" file does not match the Standard Mandatory DOD Notice and Consent Banner, this is a finding.

Check System

C-63168r940907_chk

Fix Reference

F-63076r940908_fix

Fix Text

Configure the macOS system to display the Standard Mandatory DOD Notice and Consent Banner before granting remote access to the operating system by creating a text file containing the required DOD text.

Name the file "banner" and place it in "/etc/".

Identities

CCI-000048

Display an organization-defined system use notification message or banner to users before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidelines.

800-53 :: AC-8 a
800-53 Rev. 4 :: AC-8 a
800-53 Rev. 5 :: AC-8 a
800-53A :: AC-8.1 (ii)

CCI-000050

Retain the notification message or banner on the screen until users acknowledge the usage conditions and take explicit actions to log on to or further access the system.

800-53 :: AC-8 b
800-53 Rev. 4 :: AC-8 b
800-53 Rev. 5 :: AC-8 b
800-53A :: AC-8.1 (iii)

Group Title

SRG-OS-000023-GPOS-00006

Group ID

V-259430

Rule Version

APPL-14-000024

Rule Title

The macOS system must enforce SSH to display the Standard Mandatory DOD Notice and Consent Banner.

Rule ID

SV-259430r958390_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.

The banner must be formatted in accordance with DTM-08-060.

Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Satisfies: SRG-OS-000023-GPOS-00006,SRG-OS-000024-GPOS-00007

Documentable

False

Check Content

Verify the macOS system is configured to display the contents of "/etc/banner" before granting access to the system with the following command:

/usr/sbin/sshd -G | /usr/bin/grep -c "^banner /etc/banner"

If the command does not return "1", this is a finding.

Check System

C-63169r940910_chk

Fix Reference

F-63077r940911_fix

Fix Text

Configure the macOS system to display the contents of "/etc/banner" before granting access to the system by creating a plain text file in the /private/etc/ssh/sshd_config.d/ directory containing the following:

banner /etc/banner

Identities

CCI-000048

800-53 :: AC-8 a
800-53 Rev. 4 :: AC-8 a
800-53 Rev. 5 :: AC-8 a
800-53A :: AC-8.1 (ii)

CCI-000050

Retain the notification message or banner on the screen until users acknowledge the usage conditions and take explicit actions to log on to or further access the system.

800-53 :: AC-8 b
800-53 Rev. 4 :: AC-8 b
800-53 Rev. 5 :: AC-8 b
800-53A :: AC-8.1 (iii)

Group Title

SRG-OS-000023-GPOS-00006

Group ID

V-259431

Rule Version

APPL-14-000025

Rule Title

The macOS system must display the Standard Mandatory DOD Notice and Consent Banner at the login window.

Rule ID

SV-259431r958390_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.

The policy banner will show if a "PolicyBanner.rtf" or "PolicyBanner.rtfd" exists in the "/Library/Security" folder.

The banner must be formatted in accordance with DTM-08-060.

Satisfies: SRG-OS-000023-GPOS-00006,SRG-OS-000024-GPOS-00007,SRG-OS-000228-GPOS-00088

Documentable

False

Check Content

Verify the macOS system is configured to display a policy banner with the following command:

/bin/ls -ld /Library/Security/PolicyBanner.rtf* | /usr/bin/wc -l | /usr/bin/tr -d ' '

If "PolicyBanner.rtfd" does not exist, this is a finding.

If the permissions for "PolicyBanner.rtfd" are not "644", this is a finding.

The banner text of the document must read:

"You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions:

-At any time, the USG may inspect and seize data stored on this IS.

-Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG authorized purpose.

-This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy.

If the text is not worded exactly this way, this is a finding.

Check System

C-63170r940913_chk

Fix Reference

F-63078r940914_fix

Fix Text

Configure the macOS system to display a policy banner by creating an RTF file containing the required text. Name the file "PolicyBanner.rtfd" and place it in "/Library/Security/".

Update the permissions of the "/Library/Security/PolicyBanner.rtfd" file with the following command:

/usr/bin/sudo /bin/chmod 644 /Library/Security/PolicyBanner.rtfd

Identities

CCI-000048

800-53 :: AC-8 a
800-53 Rev. 4 :: AC-8 a
800-53 Rev. 5 :: AC-8 a
800-53A :: AC-8.1 (ii)

CCI-000050

Retain the notification message or banner on the screen until users acknowledge the usage conditions and take explicit actions to log on to or further access the system.

800-53 :: AC-8 b
800-53 Rev. 4 :: AC-8 b
800-53 Rev. 5 :: AC-8 b
800-53A :: AC-8.1 (iii)

CCI-001384

For publicly accessible systems, display system use information with organization-defined conditions before granting further access to the publicly accessible system.

800-53 :: AC-8 c
800-53 Rev. 4 :: AC-8 c 1
800-53 Rev. 5 :: AC-8 c 1
800-53A :: AC-8.2 (i)

CCI-001385

For publicly accessible systems, displays references, if any, to monitoring that are consistent with privacy accommodations for such systems that generally prohibit those activities.

800-53 :: AC-8 c
800-53 Rev. 4 :: AC-8 c 2
800-53 Rev. 5 :: AC-8 c 2
800-53A :: AC-8.2 (ii)

CCI-001386

For publicly accessible systems, displays references, if any, to recording that are consistent with privacy accommodations for such systems that generally prohibit those activities.

800-53 :: AC-8 c
800-53 Rev. 4 :: AC-8 c 2
800-53 Rev. 5 :: AC-8 c 2
800-53A :: AC-8.2 (ii)

CCI-001387

For publicly accessible systems, displays references, if any, to auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities.

800-53 :: AC-8 c
800-53 Rev. 4 :: AC-8 c 2
800-53 Rev. 5 :: AC-8 c 2
800-53A :: AC-8.2 (ii)

CCI-001388

For publicly accessible systems, includes a description of the authorized uses of the system.

800-53 :: AC-8 c
800-53 Rev. 4 :: AC-8 c 3
800-53 Rev. 5 :: AC-8 c 3
800-53A :: AC-8.2 (iii)

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259432

Rule Version

APPL-14-000030

Rule Title

The macOS system must configure audit log files to not contain access control lists.

Rule ID

SV-259432r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit log files must not contain access control lists (ACLs).

This rule ensures that audit information and audit files are configured to be readable and writable only by system administrators, thereby preventing unauthorized access, modification, and deletion of files.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured without ACLs applied to log files with the following command:

/bin/ls -le $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') | /usr/bin/awk '{print $1}' | /usr/bin/grep -c ":"

If the result is not "0", this is a finding.

Check System

C-63171r940916_chk

Fix Reference

F-63079r940917_fix

Fix Text

Configure the macOS system without ACLs applied to log files with the following command:

/bin/chmod -RN /var/audit

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259433

Rule Version

APPL-14-000031

Rule Title

The macOS system must configure audit log folders to not contain access control lists.

Rule ID

SV-259433r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit log folder must not contain access control lists (ACLs).

Audit logs contain sensitive data about the system and users. This rule ensures that the audit service is configured to create log folders that are readable and writable only by system administrators in order to prevent normal users from reading audit logs.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured without ACLs applied to log folders with the following command:

/bin/ls -lde /var/audit | /usr/bin/awk '{print $1}' | /usr/bin/grep -c ":"

If the result is not "0", this is a finding.

Check System

C-63172r940919_chk

Fix Reference

F-63080r940920_fix

Fix Text

Configure the macOS system without ACLs applied to log folders with the following command:

/bin/chmod -N /var/audit

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259434

Rule Version

APPL-14-000033

Rule Title

The macOS system must disable FileVault automatic log on.

Rule ID

SV-259434r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If FileVault is enabled, automatic log on must be disabled, so that both FileVault and login window authentication are required.

The default behavior of macOS when FileVault is enabled is to automatically log on to the computer once successfully passing user's FileVault credentials.

Note: DisableFDEAutoLogin does not have to be set on Apple Silicon-based macOS systems that are smartcard enforced, as smartcards are available at preboot.

Documentable

False

Check Content

Verify the macOS system is configured to disable filevault automatic login with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow')\

.objectForKey('DisableFDEAutoLogin').js

EOS

If the result is not "true", this is a finding.

Check System

C-63173r940922_chk

Fix Reference

F-63081r940923_fix

Fix Text

Configure the macOS system to disable filevault automatic login by installing the "com.apple.loginwindow" configuration profile.

Note: To ensure continued access to the operating system, consult the supplemental guidance provided with the STIG before applying the configuration profile.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000163-GPOS-00072

Group ID

V-259435

Rule Version

APPL-14-000051

Rule Title

The macOS system must configure SSHD ClientAliveInterval to 900.

Rule ID

SV-259435r970703_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If SSHD is enabled, then it must be configured with the Client Alive Interval set to 900.

Sets a timeout interval in seconds after which if no data has been received from the client, sshd(8) will send a message through the encrypted channel to request a response from the client.

This setting works in conjunction with ClientAliveCountMax to determine the termination of the connection after the threshold has been reached.

Note: This setting is not intended to manage idle user sessions where there is no input from the client. Its purpose is to monitor for interruptions in network connectivity and force the session to terminate after the connection appears to be broken.

Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Documentable

False

Check Content

Verify the macOS system is configured to set the SSHD ClientAliveInterval to 900 with the following command:

/usr/sbin/sshd -G | /usr/bin/awk '/clientaliveinterval/{print $2}'

If the result is not "900", this is a finding.

Check System

C-63174r940925_chk

Fix Reference

F-63082r940926_fix

Fix Text

Configure the macOS system to set the SSHD ClientAliveInterval to 900 with the following command:

include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config | /usr/bin/tr -d '*')

if [[ -z $include_dir ]]; then

/usr/bin/sed -i.bk "1s/.*/Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config

/usr/bin/grep -qxF 'clientaliveinterval 900' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "clientaliveinterval 900" >> "${include_dir}01-mscp-sshd.conf"

for file in $(ls ${include_dir}); do

if [[ "$file" == "100-macos.conf" ]]; then

continue

if [[ "$file" == "01-mscp-sshd.conf" ]]; then

break

/bin/mv ${include_dir}${file} ${include_dir}20-${file}

done

Identities

CCI-001133

Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

800-53 :: SC-10
800-53 Rev. 4 :: SC-10
800-53 Rev. 5 :: SC-10
800-53A :: SC-10.1 (ii)

Group Title

SRG-OS-000163-GPOS-00072

Group ID

V-259436

Rule Version

APPL-14-000052

Rule Title

The macOS system must configure SSHD ClientAliveCountMax to 1.

Rule ID

SV-259436r970703_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If SSHD is enabled it must be configured with the Client Alive Maximum Count set to 1.

This will set the number of client alive messages which may be sent without the SSH server receiving any messages back from the client. If this threshold is reached while client alive messages are being sent, the SSH server will disconnect the client, terminating the session. The client alive messages are sent through the encrypted channel and therefore will not be spoofable. The client alive mechanism is valuable when the client or server depend on knowing when a connection has become unresponsive.

Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Documentable

False

Check Content

Verify the macOS system is configured to set the SSHD ClientAliveCountMax to 1 with the following command:

/usr/sbin/sshd -G | /usr/bin/awk '/clientalivecountmax/{print $2}'

If the result is not "1", this is a finding.

Check System

C-63175r940928_chk

Fix Reference

F-63083r940929_fix

Fix Text

Configure the macOS system to set the SSHD ClientAliveCountMax to 1 with the following command:

include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config | /usr/bin/tr -d '*')

if [[ -z $include_dir ]]; then

/usr/bin/sed -i.bk "1s/.*/Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config

/usr/bin/grep -qxF 'clientalivecountmax 1' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "clientalivecountmax 1" >> "${include_dir}01-mscp-sshd.conf"

for file in $(ls ${include_dir}); do

if [[ "$file" == "100-macos.conf" ]]; then

continue

if [[ "$file" == "01-mscp-sshd.conf" ]]; then

break

/bin/mv ${include_dir}${file} ${include_dir}20-${file}

done

Identities

CCI-001133

Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

800-53 :: SC-10
800-53 Rev. 4 :: SC-10
800-53 Rev. 5 :: SC-10
800-53A :: SC-10.1 (ii)

Group Title

SRG-OS-000163-GPOS-00072

Group ID

V-259437

Rule Version

APPL-14-000053

Rule Title

The macOS system must set Login Grace Time to 30.

Rule ID

SV-259437r970703_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If SSHD is enabled, then it must be configured to wait only 30 seconds before timing out logon attempts.

Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Documentable

False

Check Content

Verify the macOS system is configured to set Login Grace Time to 30 with the following command:

/usr/sbin/sshd -G | /usr/bin/awk '/logingracetime/{print $2}'

If the result is not "30", this is a finding.

Check System

C-63176r940931_chk

Fix Reference

F-63084r940932_fix

Fix Text

Configure the macOS system to set Login Grace Time to 30 with the following command:

include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config | /usr/bin/tr -d '*')

if [[ -z $include_dir ]]; then

/usr/bin/sed -i.bk "1s/.*/Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config

/usr/bin/grep -qxF 'logingracetime 30' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "logingracetime 30" >> "${include_dir}01-mscp-sshd.conf"

for file in $(ls ${include_dir}); do

if [[ "$file" == "100-macos.conf" ]]; then

continue

if [[ "$file" == "01-mscp-sshd.conf" ]]; then

break

/bin/mv ${include_dir}${file} ${include_dir}20-${file}

done

Identities

CCI-001133

Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

800-53 :: SC-10
800-53 Rev. 4 :: SC-10
800-53 Rev. 5 :: SC-10
800-53A :: SC-10.1 (ii)

Group Title

SRG-OS-000021-GPOS-00005

Group ID

V-259440

Rule Version

APPL-14-000060

Rule Title

The macOS system must set account lockout time to 15 minutes.

Rule ID

SV-259440r958388_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to enforce a lockout time period of at least 15 minutes when the maximum number of failed logon attempts is reached.

This rule protects against malicious users attempting to gain access to the system via brute-force hacking methods.

Satisfies: SRG-OS-000021-GPOS-00005,SRG-OS-000329-GPOS-00128

Documentable

False

Check Content

Verify the macOS system is configured to set account lockout time to 15 minutes with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath '//dict/key[text()="autoEnableInSeconds"]/following-sibling::integer[1]/text()' - | /usr/bin/awk '{ if ($1/60 >= 15 ) {print "yes"} else {print "no"}}'

If the result is not "yes", this is a finding.

Check System

C-63179r940940_chk

Fix Reference

F-63087r940941_fix

Fix Text

Configure the macOS system to set account lockout time to 15 minutes by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile or by a directory service.

Identities

CCI-000044

Enforce the organization-defined limit of consecutive invalid logon attempts by a user during the organization-defined time period.

800-53 :: AC-7 a
800-53 Rev. 4 :: AC-7 a
800-53 Rev. 5 :: AC-7 a
800-53A :: AC-7.1 (ii)

CCI-002238

800-53 Rev. 4 :: AC-7 b
800-53 Rev. 5 :: AC-7 b

Group Title

SRG-OS-000029-GPOS-00010

Group ID

V-259441

Rule Version

APPL-14-000070

Rule Title

The macOS system must enforce screen saver timeout.

Rule ID

SV-259441r958402_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The screen saver timeout must be set to 900 seconds or a shorter length of time.

This rule ensures that a full session lock is triggered within no more than 900 seconds of inactivity.

Documentable

False

Check Content

Verify the macOS system is configured to initiate the screen saver timeout after 15 minutes of inactivity with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let timeout = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.screensaver')\

.objectForKey('idleTime'))

if ( timeout <= 900 ) {

return("true")

} else {

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63180r940943_chk

Fix Reference

F-63088r940944_fix

Fix Text

Configure the macOS system to initiate the screen saver after 15 minutes of inactivity by installing the "com.apple.screensaver" configuration profile.

Identities

CCI-000057

The information system initiates a session lock after the organization-defined time period of inactivity.

800-53 :: AC-11 a
800-53 Rev. 4 :: AC-11 a
800-53 Rev. 5 :: AC-11 a
800-53A :: AC-11.1 (ii)

Group Title

SRG-OS-000104-GPOS-00051

Group ID

V-259443

Rule Version

APPL-14-000090

Rule Title

The macOS system must disable logon to other user's active and locked sessions.

Rule ID

SV-259443r1009579_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The ability to log in to another user's active or locked session must be disabled.

macOS has a privilege that can be granted to any user that will allow that user to unlock active user's sessions. Disabling the admins and/or user's ability to log into another user's active and locked session prevents unauthorized persons from viewing potentially sensitive and/or personal information.

Note: Configuring this setting will disable TouchID from unlocking the screensaver.

Documentable

False

Check Content

Verify the macOS system is configured to disable login to other user's active and locked sessions with the following command:

/usr/bin/security authorizationdb read system.login.screensaver 2>&1 | /usr/bin/grep -c '<string>authenticate-session-owner</string>'

If the result is not "1", this is a finding.

Check System

C-63182r986247_chk

Fix Reference

F-63090r986248_fix

Fix Text

Configure the macOS system to disable login to other user's active and locked sessions with the following command:

/usr/bin/security authorizationdb write system.login.screensaver "authenticate-session-owner"

Identities

CCI-000764

Uniquely identify and authenticate organizational users and associate that unique identification with processes acting on behalf of those users.

800-53 :: IA-2
800-53 Rev. 4 :: IA-2
800-53 Rev. 5 :: IA-2
800-53A :: IA-2.1

CCI-000770

The organization requires individuals to be authenticated with an individual authenticator when a group authenticator is employed.

800-53 :: IA-2 (5) (b)
800-53 Rev. 4 :: IA-2 (5)
800-53A :: IA-2 (5).2 (ii)

CCI-004045

Require users to be individually authenticated before granting access to the shared accounts or resources.

800-53 Rev. 5 :: IA-2 (5)

Group Title

SRG-OS-000104-GPOS-00051

Group ID

V-259444

Rule Version

APPL-14-000100

Rule Title

The macOS system must disable root logon.

Rule ID

SV-259444r1009580_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

To ensure individual accountability and prevent unauthorized access, logging in as root at the login window must be disabled.

The macOS system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator, and administrator users must never log in directly as root.

Satisfies: SRG-OS-000104-GPOS-00051,SRG-OS-000109-GPOS-00056,SRG-OS-000364-GPOS-00151

Documentable

False

Check Content

Verify the macOS system is configured to disable root login with the following command:

/usr/bin/dscl . -read /Users/root UserShell 2>&1 | /usr/bin/grep -c "/usr/bin/false"

If the result is not "1", this is a finding.

Check System

C-63183r940952_chk

Fix Reference

F-63091r940953_fix

Fix Text

Configure the macOS system to disable root login with the following command:

/usr/bin/dscl . -create /Users/root UserShell /usr/bin/false

Identities

CCI-000764

Uniquely identify and authenticate organizational users and associate that unique identification with processes acting on behalf of those users.

800-53 :: IA-2
800-53 Rev. 4 :: IA-2
800-53 Rev. 5 :: IA-2
800-53A :: IA-2.1

CCI-000770

The organization requires individuals to be authenticated with an individual authenticator when a group authenticator is employed.

800-53 :: IA-2 (5) (b)
800-53 Rev. 4 :: IA-2 (5)
800-53A :: IA-2 (5).2 (ii)

CCI-001813

Enforce access restrictions using organization-defined mechanisms.

800-53 Rev. 4 :: CM-5 (1)
800-53 Rev. 5 :: CM-5 (1) (a)

CCI-004045

Require users to be individually authenticated before granting access to the shared accounts or resources.

800-53 Rev. 5 :: IA-2 (5)

Group Title

SRG-OS-000163-GPOS-00072

Group ID

V-259445

Rule Version

APPL-14-000110

Rule Title

The macOS system must configure SSH ServerAliveInterval option set to 900.

Rule ID

SV-259445r970703_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SSH must be configured with an Active Server Alive Maximum Count set to 900.

Setting the Active Server Alive Maximum Count to 900 will log users out after a 900-second interval of inactivity.

Note: /etc/ssh/ssh_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Documentable

False

Check Content

Verify the macOS system is configured to set the SSH ServerAliveInterval option set to 900 with the following command:

ret="pass"

for u in $(/usr/bin/dscl . -list /Users UniqueID | /usr/bin/awk '$2 > 500 {print $1}'); do

sshCheck=$(/usr/bin/sudo -u $u /usr/bin/ssh -G . | /usr/bin/grep -c "^serveraliveinterval 900")

if [[ "$sshCheck" == "0" ]]; then

ret="fail"

break

done

/bin/echo $ret

If the result is not "pass", this is a finding.

Check System

C-63184r940955_chk

Fix Reference

F-63092r940956_fix

Fix Text

Configure the macOS system to set the SSH ServerAliveInterval option set to 900 with the following command:

for u in $(/usr/bin/dscl . -list /Users UniqueID | /usr/bin/awk '$2 > 500 {print $1}'); do

config=$(/usr/bin/sudo -u $u /usr/bin/ssh -Gv . 2>&1 | /usr/bin/awk '/Reading configuration data/ {print $NF}'| /usr/bin/tr -d '\r')

configarray=( ${(f)config} )

for c in $configarray; do

/usr/bin/sudo -u $u /usr/bin/grep -q '^ServerAliveInterval' "$c" && /usr/bin/sed -i '' 's/.*ServerAliveInterval.*/ServerAliveInterval 900/' "$c" || /bin/echo 'ServerAliveInterval 900' >> "$c"

done

Identities

CCI-001133

Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

800-53 :: SC-10
800-53 Rev. 4 :: SC-10
800-53 Rev. 5 :: SC-10
800-53A :: SC-10.1 (ii)

Group Title

SRG-OS-000163-GPOS-00072

Group ID

V-259446

Rule Version

APPL-14-000120

Rule Title

The macOS system must configure SSHD Channel Timeout to 900.

Rule ID

SV-259446r970703_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If SSHD is enabled it must be configured with session Channel Timeout set to 900.

This will set the time out when the session is inactive.

Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Satisfies: SRG-OS-000163-GPOS-00072,SRG-OS-000279-GPOS-00109

Documentable

False

Check Content

Verify the macOS system is configured to set the SSHD Channel Timeout to 900 with the following command:

/usr/sbin/sshd -G | /usr/bin/awk -F "=" '/channeltimeout session:*/{print $2}'

If the result is not "900", this is a finding.

Check System

C-63185r940958_chk

Fix Reference

F-63093r940959_fix

Fix Text

Configure the macOS system to set the SSHD Channel Timeout to 900 with the following command:

include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config | /usr/bin/tr -d '*')

if [[ -z $include_dir ]]; then

/usr/bin/sed -i.bk "1s/.*/Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config

/usr/bin/grep -qxF 'channeltimeout session:*=900' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "channeltimeout session:*=900" >> "${include_dir}01-mscp-sshd.conf"

for file in $(ls ${include_dir}); do

if [[ "$file" == "100-macos.conf" ]]; then

continue

if [[ "$file" == "01-mscp-sshd.conf" ]]; then

break

/bin/mv ${include_dir}${file} ${include_dir}20-${file}

done

Identities

CCI-001133

Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

800-53 :: SC-10
800-53 Rev. 4 :: SC-10
800-53 Rev. 5 :: SC-10
800-53A :: SC-10.1 (ii)

CCI-002361

Automatically terminate a user session after organization-defined conditions or trigger events requiring session disconnect.

800-53 Rev. 4 :: AC-12
800-53 Rev. 5 :: AC-12

Group Title

SRG-OS-000163-GPOS-00072

Group ID

V-259447

Rule Version

APPL-14-000130

Rule Title

The macOS system must configure SSHD unused connection timeout to 900.

Rule ID

SV-259447r1009527_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If SSHD is enabled, it must be configured with unused connection timeout set to 900.

This will set the timeout when there are no open channels within a session.

Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Satisfies: SRG-OS-000163-GPOS-00072,SRG-OS-000279-GPOS-00109

Documentable

False

Check Content

Verify the macOS system is configured to set the SSHD unused connection timeout to 900 with the following command:

/usr/sbin/sshd -G | /usr/bin/awk '/unusedconnectiontimeout/{print $2}'

If the result is not "900", this is a finding.

Check System

C-63186r1009525_chk

Fix Reference

F-63094r1009526_fix

Fix Text

Configure the macOS system to set the SSHD unused connection timeout to 900 with the following command:

include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config | /usr/bin/tr -d '*')

if [[ -z $include_dir ]]; then

/usr/bin/sed -i.bk "1s/.*/Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config

/usr/bin/grep -qxF 'unusedconnectiontimeout 900' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "unusedconnectiontimeout 900" >> "${include_dir}01-mscp-sshd.conf"

for file in $(ls ${include_dir}); do

if [[ "$file" == "100-macos.conf" ]]; then

continue

if [[ "$file" == "01-mscp-sshd.conf" ]]; then

break

/bin/mv ${include_dir}${file} ${include_dir}20-${file}

done

Identities

CCI-001133

Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

800-53 :: SC-10
800-53 Rev. 4 :: SC-10
800-53 Rev. 5 :: SC-10
800-53A :: SC-10.1 (ii)

CCI-002361

Automatically terminate a user session after organization-defined conditions or trigger events requiring session disconnect.

800-53 Rev. 4 :: AC-12
800-53 Rev. 5 :: AC-12

Group Title

SRG-OS-000163-GPOS-00072

Group ID

V-259448

Rule Version

APPL-14-000140

Rule Title

The macOS system must set SSH Active Server Alive Maximum to 0.

Rule ID

SV-259448r970703_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SSH must be configured with an Active Server Alive Maximum Count set to 0. Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session or an incomplete login attempt will also free up resources committed by the managed network element.

Note: /etc/ssh/ssh_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Documentable

False

Check Content

Verify the macOS system is configured to set SSH Active Server Alive Maximum to 0 with the following command:

ret="pass"

for u in $(/usr/bin/dscl . -list /Users UniqueID | /usr/bin/awk '$2 > 500 {print $1}'); do

sshCheck=$(/usr/bin/sudo -u $u /usr/bin/ssh -G . | /usr/bin/grep -c "^serveralivecountmax 0")

if [[ "$sshCheck" == "0" ]]; then

ret="fail"

break

done

/bin/echo $ret

If the result is not "pass", this is a finding.

Check System

C-63187r940964_chk

Fix Reference

F-63095r940965_fix

Fix Text

Configure the macOS system to set SSH Active Server Alive Maximum to 0 with the following command:

for u in $(/usr/bin/dscl . -list /Users UniqueID | /usr/bin/awk '$2 > 500 {print $1}'); do

config=$(/usr/bin/sudo -u $u /usr/bin/ssh -Gv . 2>&1 | /usr/bin/awk '/Reading configuration data/ {print $NF}'| /usr/bin/tr -d '\r')

configarray=( ${(f)config} )

for c in $configarray; do

/usr/bin/sudo -u $u /usr/bin/grep -q '^ServerAliveCountMax' "$c" && /usr/bin/sed -i '' 's/.*ServerAliveCountMax.*/ServerAliveCountMax 0/' "$c" || /bin/echo 'ServerAliveCountMax 0' >> "$c"

done

Identities

CCI-001133

Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

800-53 :: SC-10
800-53 Rev. 4 :: SC-10
800-53 Rev. 5 :: SC-10
800-53A :: SC-10.1 (ii)

Group Title

SRG-OS-000279-GPOS-00109

Group ID

V-259449

Rule Version

APPL-14-000160

Rule Title

The macOS system must enforce auto logout after 86400 seconds of inactivity.

Rule ID

SV-259449r958636_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Auto logout must be configured to automatically terminate a user session and log out the after 86400 seconds of inactivity.

Note: The maximum that macOS can be configured for autologoff is 86400 seconds.

[IMPORTANT]

====

The automatic logout may cause disruptions to an organization's workflow and/or loss of data. Information system security officers (ISSOs) are advised to first fully weigh the potential risks posed to their organization before opting to disable the automatic logout setting.

====

Documentable

False

Check Content

Verify the macOS system is configured to enforce auto logout after 86400 seconds of inactivity with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('.GlobalPreferences')\

.objectForKey('com.apple.autologout.AutoLogOutDelay').js

EOS

If the result is not "86400", this is a finding.

Check System

C-63188r940967_chk

Fix Reference

F-63096r940968_fix

Fix Text

Configure the macOS system to enforce auto logout after 86400 seconds of inactivity by installing the "com.apple.GlobalPreferences" configuration profile.

Identities

CCI-002361

Automatically terminate a user session after organization-defined conditions or trigger events requiring session disconnect.

800-53 Rev. 4 :: AC-12
800-53 Rev. 5 :: AC-12

Group Title

SRG-OS-000355-GPOS-00143

Group ID

V-259450

Rule Version

APPL-14-000170

Rule Title

The macOS system must be configured to use an authorized time server.

Rule ID

SV-259450r1009581_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Approved time servers must be the only servers configured for use.

This rule ensures the uniformity of time stamps for information systems with multiple system clocks and systems connected over a network.

An authoritative time server is synchronized with redundant United States Naval Observatory (USNO) time servers as designated for the appropriate DOD network.

Satisfies: SRG-OS-000355-GPOS-00143,SRG-OS-000356-GPOS-00144

Documentable

False

Check Content

Verify the macOS system is configured to use an authorized time server with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.MCX')\

.objectForKey('timeServer').js

EOS

If the result is not an authoritative time server which is synchronized with redundant USNO time servers as designated for the appropriate DOD network, this is a finding.

Check System

C-63189r986241_chk

Fix Reference

F-63097r940971_fix

Fix Text

Configure the macOS system to use an authorized time server by installing the "com.apple.MCX" configuration profile.

Identities

CCI-001891

The information system compares internal information system clocks on an organization-defined frequency with an organization-defined authoritative time source.

800-53 Rev. 4 :: AU-8 (1) (a)

CCI-002046

The information system synchronizes the internal system clocks to the authoritative time source when the time difference is greater than the organization-defined time period.

800-53 Rev. 4 :: AU-8 (1) (b)

CCI-004923

Compare the internal system clocks on an organization-defined frequency with organization-defined authoritative time source.

800-53 Rev. 5 :: SC-45 (1) (a)

CCI-004926

Synchronize the internal system clocks to the authoritative time source when the time difference is greater than organization-defined time period.

800-53 Rev. 5 :: SC-45 (1) (b)

Group Title

SRG-OS-000355-GPOS-00143

Group ID

V-259451

Rule Version

APPL-14-000180

Rule Title

The macOS system must enable time synchronization daemon.

Rule ID

SV-259451r1009582_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS time synchronization daemon (timed) must be enabled for proper time synchronization to an authorized time server.

Note: The time synchronization daemon is enabled by default on macOS.

Satisfies: SRG-OS-000355-GPOS-00143,SRG-OS-000356-GPOS-00144

Documentable

False

Check Content

Verify the macOS system is configured to enable time synchronization daemon with the following command:

/bin/launchctl list | /usr/bin/grep -c com.apple.timed

If the result is not "1", this is a finding.

Check System

C-63190r940973_chk

Fix Reference

F-63098r940974_fix

Fix Text

Configure the macOS system to enable time synchronization daemon with the following command:

/bin/launchctl load -w /System/Library/LaunchDaemons/com.apple.timed.plist

Identities

CCI-001891

The information system compares internal information system clocks on an organization-defined frequency with an organization-defined authoritative time source.

800-53 Rev. 4 :: AU-8 (1) (a)

CCI-002046

The information system synchronizes the internal system clocks to the authoritative time source when the time difference is greater than the organization-defined time period.

800-53 Rev. 4 :: AU-8 (1) (b)

CCI-004922

Synchronize system clocks within and between systems or system components.

800-53 Rev. 5 :: SC-45

CCI-004923

Compare the internal system clocks on an organization-defined frequency with organization-defined authoritative time source.

800-53 Rev. 5 :: SC-45 (1) (a)

CCI-004926

Synchronize the internal system clocks to the authoritative time source when the time difference is greater than organization-defined time period.

800-53 Rev. 5 :: SC-45 (1) (b)

Group Title

SRG-OS-000004-GPOS-00004

Group ID

V-259452

Rule Version

APPL-14-001001

Rule Title

The macOS system must be configured to audit all administrative action events.

Rule ID

SV-259452r1009583_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Administrative action events include changes made to the system (e.g., modifying authentication policies). If audit records do not include "ad" events, it is difficult to identify incidents and to correlate incidents to subsequent events. Audit records can be generated from various components within the information system (e.g., via a module or policy filter).

Administrative and privileged access, including administrative use of the command line tools "kextload" and "kextunload" and changes to configuration settings, are logged by way of the "ad" flag.

Satisfies: SRG-OS-000004-GPOS-00004,SRG-OS-000239-GPOS-00089,SRG-OS-000240-GPOS-00090,SRG-OS-000241-GPOS-00091,SRG-OS-000327-GPOS-00127,SRG-OS-000365-GPOS-00152,SRG-OS-000392-GPOS-00172,SRG-OS-000458-GPOS-00203,SRG-OS-000471-GPOS-00215,SRG-OS-000471-GPOS-00216,SRG-OS-000476-GPOS-00221

Documentable

False

Check Content

Verify the macOS system is configured to audit privileged access with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec 'ad'

If "ad" is not listed in the output, this is a finding.

Check System

C-63191r940976_chk

Fix Reference

F-63099r940977_fix

Fix Text

Configure the macOS system to audit privileged access with the following command:

/usr/bin/grep -qE "^flags.*[^-]ad" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,ad/' /etc/security/audit_control; /usr/sbin/audit -s

A text editor may also be used to implement the required updates to the "/etc/security/audit_control" file.

Identities

CCI-000018

Automatically audit account creation actions.

800-53 :: AC-2 (4)
800-53 Rev. 4 :: AC-2 (4)
800-53 Rev. 5 :: AC-2 (4)
800-53A :: AC-2 (4).1 (i and ii)

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

CCI-001403

Automatically audit account modification actions.

800-53 :: AC-2 (4)
800-53 Rev. 4 :: AC-2 (4)
800-53 Rev. 5 :: AC-2 (4)
800-53A :: AC-2 (4).1 (i and ii)

CCI-001404

Automatically audit account disabling actions.

800-53 :: AC-2 (4)
800-53 Rev. 4 :: AC-2 (4)
800-53 Rev. 5 :: AC-2 (4)
800-53A :: AC-2 (4).1 (i and ii)

CCI-001405

Automatically audit account removal actions.

800-53 :: AC-2 (4)
800-53 Rev. 4 :: AC-2 (4)
800-53 Rev. 5 :: AC-2 (4)
800-53A :: AC-2 (4).1 (i and ii)

CCI-001814

The Information system supports auditing of the enforcement actions.

800-53 Rev. 4 :: CM-5 (1)

CCI-002234

Log the execution of privileged functions.

800-53 Rev. 4 :: AC-6 (9)
800-53 Rev. 5 :: AC-6 (9)

CCI-002884

Log organization-defined audit events for nonlocal maintenance and diagnostic sessions.

800-53 Rev. 4 :: MA-4 (1) (a)
800-53 Rev. 5 :: MA-4 (1) (a)

CCI-003938

Automatically generate audit records of the enforcement actions.

800-53 Rev. 5 :: CM-5 (1) (b)

CCI-004188

Monitor the use of maintenance tools that execute with increased privilege.

800-53 Rev. 5 :: MA-3 (5)

Group Title

SRG-OS-000032-GPOS-00013

Group ID

V-259453

Rule Version

APPL-14-001002

Rule Title

The macOS system must be configured to audit all log on and log out events.

Rule ID

SV-259453r958406_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit system must be configured to record all attempts to log in and out of the system (lo).

Frequently, an attacker that successfully gains access to a system has only gained access to an account with limited privileges, such as a guest account or a service account. The attacker must attempt to change to another user account with normal or elevated privileges in order to proceed. Auditing both successful and unsuccessful attempts to switch to another user account (by way of monitoring log on and log out events) mitigates this risk.

The information system monitors log on and log out events.

Satisfies: SRG-OS-000032-GPOS-00013,SRG-OS-000064-GPOS-00033,SRG-OS-000392-GPOS-00172,SRG-OS-000458-GPOS-00203,SRG-OS-000470-GPOS-00214,SRG-OS-000471-GPOS-00215,SRG-OS-000471-GPOS-00216,SRG-OS-000472-GPOS-00217,SRG-OS-000473-GPOS-00218

Documentable

False

Check Content

Verify the macOS system is configured to audit all log on and log out events with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec '^lo'

If the result is not "1", this is a finding.

Check System

C-63192r940979_chk

Fix Reference

F-63100r940980_fix

Fix Text

Configure the macOS system to audit all log on and log out events with the following command:

/usr/bin/grep -qE "^flags.*[^-]lo" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,lo/' /etc/security/audit_control; /usr/sbin/audit -s

A text editor may also be used to implement the required updates to the "/etc/security/audit_control" file.

Identities

CCI-000067

Employ automated mechanisms to monitor remote access methods.

800-53 :: AC-17 (1)
800-53 Rev. 4 :: AC-17 (1)
800-53 Rev. 5 :: AC-17 (1)
800-53A :: AC-17 (1).1

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

CCI-002884

Log organization-defined audit events for nonlocal maintenance and diagnostic sessions.

800-53 Rev. 4 :: MA-4 (1) (a)
800-53 Rev. 5 :: MA-4 (1) (a)

Group Title

SRG-OS-000037-GPOS-00015

Group ID

V-259454

Rule Version

APPL-14-001003

Rule Title

The macOS system must enable security auditing.

Rule ID

SV-259454r1009584_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Audit records establish what types of events have occurred, when they occurred, and which users were involved. These records aid an organization in their efforts to establish, correlate, and investigate the events leading up to an outage or attack.

The content required to be captured in an audit record varies based on the impact level of an organization's system. Content that may be necessary to satisfy this requirement includes, for example, time stamps, source addresses, destination addresses, user identifiers, event descriptions, success/fail indications, filenames involved, and access or flow control rules invoked.

The information system initiates session audits at system startup.

Note: Security auditing is enabled by default on macOS.

Satisfies: SRG-OS-000037-GPOS-00015,SRG-OS-000038-GPOS-00016,SRG-OS-000039-GPOS-00017,SRG-OS-000040-GPOS-00018,SRG-OS-000041-GPOS-00019,SRG-OS-000042-GPOS-00020,SRG-OS-000042-GPOS-00021,SRG-OS-000055-GPOS-00026,SRG-OS-000254-GPOS-00095,SRG-OS-000255-GPOS-00096,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099,SRG-OS-000303-GPOS-00120,SRG-OS-000337-GPOS-00129,SRG-OS-000358-GPOS-00145,SRG-OS-000359-GPOS-00146,SRG-OS-000365-GPOS-00152,SRG-OS-000392-GPOS-00172,SRG-OS-000458-GPOS-00203,SRG-OS-000461-GPOS-00205,SRG-OS-000462-GPOS-00206,SRG-OS-000463-GPOS-00207,SRG-OS-000465-GPOS-00209,SRG-OS-000466-GPOS-00210,SRG-OS-000467-GPOS-00211,SRG-OS-000468-GPOS-00212,SRG-OS-000470-GPOS-00214,SRG-OS-000471-GPOS-00215,SRG-OS-000471-GPOS-00216,SRG-OS-000472-GPOS-00217,SRG-OS-000473-GPOS-00218,SRG-OS-000474-GPOS-00219,SRG-OS-000475-GPOS-00220,SRG-OS-000476-GPOS-00221,SRG-OS-000477-GPOS-00222

Documentable

False

Check Content

Verify the macOS system is configured to enable the auditd service with the following command:

LAUNCHD_RUNNING=$(/bin/launchctl list | /usr/bin/grep -c com.apple.auditd)

if [[ $LAUNCHD_RUNNING == 1 ]] && [[ -e /etc/security/audit_control ]]; then

echo "pass"

else

echo "fail"

If the result is not "pass", this is a finding.

Check System

C-63193r940982_chk

Fix Reference

F-63101r940983_fix

Fix Text

Configure the macOS system to enable the auditd service with the following command:

LAUNCHD_RUNNING=$(/bin/launchctl list | /usr/bin/grep -c com.apple.auditd)

if [[ ! $LAUNCHD_RUNNING == 1 ]]; then

/bin/launchctl load -w /System/Library/LaunchDaemons/com.apple.auditd.plist

if [[ ! -e /etc/security/audit_control ]] && [[ -e /etc/security/audit_control.example ]];then

/bin/cp /etc/security/audit_control.example /etc/security/audit_control

else

/usr/bin/touch /etc/security/audit_control

Identities

CCI-000130

Ensure that audit records containing information that establishes what type of event occurred.

800-53 :: AU-3
800-53 Rev. 4 :: AU-3
800-53 Rev. 5 :: AU-3 a
800-53A :: AU-3.1

CCI-000131

Ensure that audit records containing information that establishes when the event occurred.

800-53 :: AU-3
800-53 Rev. 4 :: AU-3
800-53 Rev. 5 :: AU-3 b
800-53A :: AU-3.1

CCI-000132

Ensure that audit records containing information that establishes where the event occurred.

800-53 :: AU-3
800-53 Rev. 4 :: AU-3
800-53 Rev. 5 :: AU-3 c
800-53A :: AU-3.1

CCI-000133

Ensure that audit records containing information that establishes the source of the event.

800-53 :: AU-3
800-53 Rev. 4 :: AU-3
800-53 Rev. 5 :: AU-3 d
800-53A :: AU-3.1

CCI-000134

Ensure that audit records containing information that establishes the outcome of the event.

800-53 :: AU-3
800-53 Rev. 4 :: AU-3
800-53 Rev. 5 :: AU-3 e
800-53A :: AU-3.1

CCI-000135

Generate audit records containing the organization-defined additional information that is to be included in the audit records.

800-53 :: AU-3 (1)
800-53 Rev. 4 :: AU-3 (1)
800-53 Rev. 5 :: AU-3 (1)
800-53A :: AU-3 (1).1 (ii)

CCI-000159

Use internal system clocks to generate time stamps for audit records.

800-53 :: AU-8
800-53 Rev. 4 :: AU-8 a
800-53 Rev. 5 :: AU-8 a
800-53A :: AU-8.1

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

CCI-001464

Initiates session audits automatically at system start-up.

800-53 :: AU-14 (1)
800-53 Rev. 4 :: AU-14 (1)
800-53 Rev. 5 :: AU-14 (1)
800-53A :: AU-14 (1).1

CCI-001487

Ensure that audit records containing information that establishes the identity of any individuals, subjects, or objects/entities associated with the event.

800-53 :: AU-3
800-53 Rev. 4 :: AU-3
800-53 Rev. 5 :: AU-3 f
800-53A :: AU-3.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001814

The Information system supports auditing of the enforcement actions.

800-53 Rev. 4 :: CM-5 (1)

CCI-001889

Record time stamps for audit records that meet organization-defined granularity of time measurement.

800-53 Rev. 4 :: AU-8 b
800-53 Rev. 5 :: AU-8 b

CCI-001890

Record time stamps for audit records that use Coordinated Universal Time, have a fixed local time offset from Coordinated Universal Time, or that include the local time offset as part of the time stamp.

800-53 Rev. 4 :: AU-8 b
800-53 Rev. 5 :: AU-8 b

CCI-001914

Provide the capability for organization-defined individuals or roles to change the logging to be performed on organization-defined system components based on organization-defined selectable event criteria within organization-defined time thresholds.

800-53 Rev. 4 :: AU-12 (3)
800-53 Rev. 5 :: AU-12 (3)

CCI-002130

Automatically audit account enabling actions.

800-53 Rev. 4 :: AC-2 (4)
800-53 Rev. 5 :: AC-2 (4)

CCI-002884

Log organization-defined audit events for nonlocal maintenance and diagnostic sessions.

800-53 Rev. 4 :: MA-4 (1) (a)
800-53 Rev. 5 :: MA-4 (1) (a)

CCI-003938

Automatically generate audit records of the enforcement actions.

800-53 Rev. 5 :: CM-5 (1) (b)

CCI-004188

Monitor the use of maintenance tools that execute with increased privilege.

800-53 Rev. 5 :: MA-3 (5)

Group Title

SRG-OS-000047-GPOS-00023

Group ID

V-259455

Rule Version

APPL-14-001010

Rule Title

The macOS system must configure system to shut down upon audit failure.

Rule ID

SV-259455r958426_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit service must be configured to shut down the computer if it is unable to audit system events.

Once audit failure occurs, user and system activity are no longer recorded, and malicious activity could go undetected. Audit processing failures can occur due to software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded.

When availability is an overriding concern, other approved actions in response to an audit failure are as follows:

(i) If the failure was caused by the lack of audit record storage capacity, the operating system must continue generating audit records if possible (automatically restarting the audit service if necessary), overwriting the oldest audit records in a first-in-first-out manner.

(ii) If audit records are sent to a centralized collection server and communication with this server is lost or the server fails, the operating system must queue audit records locally until communication is restored or until the audit records are retrieved manually. Upon restoration of the connection to the centralized collection server, action should be taken to synchronize the local audit data with the collection server.

Documentable

False

Check Content

Verify the macOS system is configured to shut down upon audit failure with the following command:

/usr/bin/awk -F':' '/^policy/ {print $NF}' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec 'ahlt'

If the result is not "1", this is a finding.

Check System

C-63194r940985_chk

Fix Reference

F-63102r940986_fix

Fix Text

Configure the macOS system to shut down upon audit failure with the following command:

/usr/bin/sed -i.bak 's/^policy.*/policy: ahlt,argv/' /etc/security/audit_control; /usr/sbin/audit -s

Identities

CCI-000140

Take organization-defined actions upon audit failure include, shutting down the system, overwriting oldest audit records, and stopping the generation of audit records.

800-53 :: AU-5 b
800-53 Rev. 4 :: AU-5 b
800-53 Rev. 5 :: AU-5 b
800-53A :: AU-5.1 (iv)

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259456

Rule Version

APPL-14-001012

Rule Title

The macOS system must configure audit log files to be owned by root.

Rule ID

SV-259456r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Audit log files must be owned by root.

The audit service must be configured to create log files with the correct ownership to prevent normal users from reading audit logs.

Audit logs contain sensitive data about the system and users. If log files are set to only be readable and writable by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with audit log files owned by root with the following command:

/bin/ls -n $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') | /usr/bin/awk '{s+=$3} END {print s}'

If the result is not "0", this is a finding.

Check System

C-63195r940988_chk

Fix Reference

F-63103r940989_fix

Fix Text

Configure the macOS system with audit log files owned by root with the following command:

/usr/sbin/chown -R root /var/audit/*

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259457

Rule Version

APPL-14-001013

Rule Title

The macOS system must configure audit log folders to be owned by root.

Rule ID

SV-259457r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Audit log folders must be owned by root.

The audit service must be configured to create log folders with the correct ownership to prevent normal users from reading audit logs.

Audit logs contain sensitive data about the system and users. If log folders are set to only be readable and writable by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with audit log folders owned by root with the following command:

/bin/ls -dn $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') | /usr/bin/awk '{print $3}'

If the result is not "0", this is a finding.

Check System

C-63196r940991_chk

Fix Reference

F-63104r940992_fix

Fix Text

Configure the macOS system with audit log folders owned by root with the following command:

/usr/sbin/chown root /var/audit

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259458

Rule Version

APPL-14-001014

Rule Title

The macOS system must configure audit log files group to wheel.

Rule ID

SV-259458r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Audit log files must have the group set to wheel.

The audit service must be configured to create log files with the correct group ownership to prevent normal users from reading audit logs.

Audit logs contain sensitive data about the system and users. If log files are set to be readable and writable only by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with audit log files group-owned by wheel with the following command:

/bin/ls -n $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') | /usr/bin/awk '{s+=$4} END {print s}'

If the result is not "0", this is a finding.

Check System

C-63197r940994_chk

Fix Reference

F-63105r940995_fix

Fix Text

Configure the macOS system with audit log files group-owned by wheel with the following command:

/usr/bin/chgrp -R wheel /var/audit/*

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259459

Rule Version

APPL-14-001015

Rule Title

The macOS system must configure audit log folders group to wheel.

Rule ID

SV-259459r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Audit log folders must have the group set to wheel.

The audit service must be configured to create log files with the correct group ownership to prevent normal users from reading audit logs.

Audit logs contain sensitive data about the system and users. If log files are set to be readable and writable only by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with audit log folders group-owned by wheel with the following command:

/bin/ls -dn $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') | /usr/bin/awk '{print $4}'

If the result is not "0", this is a finding.

Check System

C-63198r940997_chk

Fix Reference

F-63106r940998_fix

Fix Text

Configure the macOS system with audit log folders group-owned by wheel with the following command:

/usr/bin/chgrp wheel /var/audit

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259460

Rule Version

APPL-14-001016

Rule Title

The macOS system must configure audit log files to mode 440 or less permissive.

Rule ID

SV-259460r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit service must be configured to create log files that are readable only by the root user and group wheel. To achieve this, audit log files must be configured to mode 440 or less permissive; thereby preventing normal users from reading, modifying, or deleting audit logs.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with audit log files set to mode 440 or less with the following command:

/bin/ls -l $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}') | /usr/bin/awk '!/-r--r-----|current|total/{print $1}' | /usr/bin/wc -l | /usr/bin/tr -d ' '

If the result is not "0", this is a finding.

Check System

C-63199r941000_chk

Fix Reference

F-63107r941001_fix

Fix Text

Configure the macOS system with audit log files set to mode 440 with the following command:

/bin/chmod 440 /var/audit/*

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259461

Rule Version

APPL-14-001017

Rule Title

The macOS system must configure audit log folders to mode 700 or less permissive.

Rule ID

SV-259461r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit log folder must be configured to mode 700 or less permissive so that only the root user is able to read, write, and execute changes to folders.

Because audit logs contain sensitive data about the system and users, the audit service must be configured to mode 700 or less permissive; thereby preventing normal users from reading, modifying, or deleting audit logs.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with audit log folders set to mode 700 or less permissive with the following command:

/usr/bin/stat -f %A $(/usr/bin/grep '^dir' /etc/security/audit_control | /usr/bin/awk -F: '{print $2}')

If the result is not a mode of 700 or less permissive, this is a finding.

Check System

C-63200r941003_chk

Fix Reference

F-63108r941004_fix

Fix Text

Configure the macOS system with audit log folders set to mode 700 with the following command:

/bin/chmod 700 /var/audit

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259462

Rule Version

APPL-14-001020

Rule Title

The macOS system must be configured to audit all deletions of object attributes.

Rule ID

SV-259462r1009585_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit system must be configured to record enforcement actions of attempts to delete file attributes (fd).

***Enforcement actions are the methods or mechanisms used to prevent unauthorized changes to configuration settings. One common and effective enforcement action method is using access restrictions (i.e., denying modifications to a file by applying file permissions).

This configuration ensures that audit lists include events in which enforcement actions prevent attempts to delete a file.

Without auditing the enforcement of access restrictions, it is difficult to identify attempted attacks, as there is no audit trail available for forensic investigation.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000064-GPOS-00033,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099,SRG-OS-000365-GPOS-00152,SRG-OS-000392-GPOS-00172,SRG-OS-000458-GPOS-00203,SRG-OS-000463-GPOS-00207,SRG-OS-000465-GPOS-00209,SRG-OS-000466-GPOS-00210,SRG-OS-000467-GPOS-00211,SRG-OS-000468-GPOS-00212

Documentable

False

Check Content

Verify the macOS system is configured to audit all deletions of object attributes with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec '\-fd'

If the result is not "1", this is a finding.

Check System

C-63201r941006_chk

Fix Reference

F-63109r941007_fix

Fix Text

Configure the macOS system to audit all deletions of object attributes with the following command:

/usr/bin/grep -qE "^flags.*-fd" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,-fd/' /etc/security/audit_control;/usr/sbin/audit -s

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001814

The Information system supports auditing of the enforcement actions.

800-53 Rev. 4 :: CM-5 (1)

CCI-002884

Log organization-defined audit events for nonlocal maintenance and diagnostic sessions.

800-53 Rev. 4 :: MA-4 (1) (a)
800-53 Rev. 5 :: MA-4 (1) (a)

CCI-003938

Automatically generate audit records of the enforcement actions.

800-53 Rev. 5 :: CM-5 (1) (b)

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259463

Rule Version

APPL-14-001021

Rule Title

The macOS system must be configured to audit all changes of object attributes.

Rule ID

SV-259463r1009586_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit system must be configured to record enforcement actions of attempts to modify file attributes (fm).

Enforcement actions are the methods or mechanisms used to prevent unauthorized changes to configuration settings. One common and effective enforcement action method is using access restrictions (i.e., modifications to a file by applying file permissions).

This configuration ensures that audit lists include events in which enforcement actions attempts to modify a file.

Without auditing the enforcement of access restrictions, it is difficult to identify attempted attacks, as there is no audit trail available for forensic investigation.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000064-GPOS-00033,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099,SRG-OS-000365-GPOS-00152,SRG-OS-000392-GPOS-00172,SRG-OS-000458-GPOS-00203,SRG-OS-000462-GPOS-00206,SRG-OS-000463-GPOS-00207,SRG-OS-000465-GPOS-00209,SRG-OS-000466-GPOS-00210,SRG-OS-000467-GPOS-00211,SRG-OS-000468-GPOS-00212

Documentable

False

Check Content

Verify the macOS system is configured to audit all changes of object attributes with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec '^fm'

If the result is not "1", this is a finding.

Check System

C-63202r941009_chk

Fix Reference

F-63110r941010_fix

Fix Text

Configure the macOS system to audit all changes of object attributes with the following command:

/usr/bin/grep -qE "^flags.*fm" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,fm/' /etc/security/audit_control;/usr/sbin/audit -s

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001814

The Information system supports auditing of the enforcement actions.

800-53 Rev. 4 :: CM-5 (1)

CCI-002884

Log organization-defined audit events for nonlocal maintenance and diagnostic sessions.

800-53 Rev. 4 :: MA-4 (1) (a)
800-53 Rev. 5 :: MA-4 (1) (a)

CCI-003938

Automatically generate audit records of the enforcement actions.

800-53 Rev. 5 :: CM-5 (1) (b)

Group Title

SRG-OS-000463-GPOS-00207

Group ID

V-259464

Rule Version

APPL-14-001022

Rule Title

The macOS system must be configured to audit all failed read actions on the system.

Rule ID

SV-259464r991573_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit system must be configured to record enforcement actions of access restrictions, including failed file read (-fr) attempts.

Enforcement actions are the methods or mechanisms used to prevent unauthorized access and/or changes to configuration settings. One common and effective enforcement action method is using access restrictions (e.g., denying access to a file by applying file permissions).

This configuration ensures that audit lists include events in which enforcement actions prevent attempts to read a file.

Without auditing the enforcement of access restrictions, it is difficult to identify attempted attacks, as there is no audit trail available for forensic investigation.

Satisfies: SRG-OS-000463-GPOS-00207,SRG-OS-000057-GPOS-00027,SRG-OS-000465-GPOS-00209,SRG-OS-000474-GPOS-00219

Documentable

False

Check Content

Verify the macOS system is configured to audit all failed read actions on the system with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec '\-fr'

If the result is not "1", this is a finding.

Check System

C-63203r941012_chk

Fix Reference

F-63111r941013_fix

Fix Text

Configure the macOS system to audit all failed read actions on the system with the following command:

/usr/bin/grep -qE "^flags.*-fr" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,-fr/' /etc/security/audit_control;/usr/sbin/audit -s

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

Group Title

SRG-OS-000463-GPOS-00207

Group ID

V-259465

Rule Version

APPL-14-001023

Rule Title

The macOS system must be configured to audit all failed write actions on the system.

Rule ID

SV-259465r991573_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit system must be configured to record enforcement actions of access restrictions, including failed file write (-fw) attempts.

This configuration ensures that audit lists include events in which enforcement actions prevent attempts to change a file.

Without auditing the enforcement of access restrictions, it is difficult to identify attempted attacks, as there is no audit trail available for forensic investigation.

Satisfies: SRG-OS-000463-GPOS-00207,SRG-OS-000057-GPOS-00027,SRG-OS-000465-GPOS-00209,SRG-OS-000466-GPOS-00210,SRG-OS-000467-GPOS-00211,SRG-OS-000468-GPOS-00212

Documentable

False

Check Content

Verify the macOS system is configured to audit all failed write actions on the system with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec '\-fw'

If the result is not "1", this is a finding.

Check System

C-63204r941015_chk

Fix Reference

F-63112r941016_fix

Fix Text

Configure the macOS system to audit all failed write actions on the system with the following command:

/usr/bin/grep -qE "^flags.*-fw" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,-fw/' /etc/security/audit_control;/usr/sbin/audit -s

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

Group Title

SRG-OS-000463-GPOS-00207

Group ID

V-259466

Rule Version

APPL-14-001024

Rule Title

The macOS system must be configured to audit all failed program execution on the system.

Rule ID

SV-259466r1009587_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit system must be configured to record enforcement actions of access restrictions, including failed program execute (-ex) attempts.

Enforcement actions are the methods or mechanisms used to prevent unauthorized access and/or changes to configuration settings. One common and effective enforcement action method is using program execution restrictions (e.g., denying users access to execute certain processes).

This configuration ensures that audit lists include events in which program execution has failed.

Without auditing the enforcement of program execution, it is difficult to identify attempted attacks as there is no audit trail available for forensic investigation.

Satisfies: SRG-OS-000463-GPOS-00207,SRG-OS-000365-GPOS-00152,SRG-OS-000458-GPOS-00203,SRG-OS-000465-GPOS-00209

Documentable

False

Check Content

Verify the macOS system is configured to audit all failed program execution on the system with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec '\-ex'

If the result is not "1", this is a finding.

Check System

C-63205r941018_chk

Fix Reference

F-63113r941019_fix

Fix Text

Configure the macOS system to audit all failed program execution on the system with the following command:

/usr/bin/grep -qE "^flags.*-ex" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,-ex/' /etc/security/audit_control; /usr/sbin/audit -s

Identities

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

CCI-001814

The Information system supports auditing of the enforcement actions.

800-53 Rev. 4 :: CM-5 (1)

CCI-003938

Automatically generate audit records of the enforcement actions.

800-53 Rev. 5 :: CM-5 (1) (b)

Group Title

SRG-OS-000046-GPOS-00022

Group ID

V-259468

Rule Version

APPL-14-001030

Rule Title

The macOS system must configure audit capacity warning.

Rule ID

SV-259468r958424_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit service must be configured to notify the system administrator when the amount of free disk space remaining reaches an organization defined value.

This rule ensures that the system administrator is notified in advance that action is required to free up more disk space for audit logs.

Satisfies: SRG-OS-000046-GPOS-00022,SRG-OS-000343-GPOS-00134

Documentable

False

Check Content

Verify the macOS system is configured to require a minimum of 25 percent free disk space for audit record storage with the following command:

/usr/bin/awk -F: '/^minfree/{print $2}' /etc/security/audit_control

If the result is not "25", this is a finding.

Check System

C-63207r941024_chk

Fix Reference

F-63115r941025_fix

Fix Text

Configure the macOS system to require a minimum of 25 percent free disk space for audit record storage with the following command:

/usr/bin/sed -i.bak 's/.*minfree.*/minfree:25/' /etc/security/audit_control; /usr/sbin/audit -s

Identities

CCI-000139

Alert organization-defined personnel or roles within an organization-defined time period in the event of an audit logging process failure.

800-53 :: AU-5 a
800-53 Rev. 4 :: AU-5 a
800-53 Rev. 5 :: AU-5 a
800-53A :: AU-5.1 (ii)

CCI-001855

Provide a warning to organization-defined personnel, roles, and/or locations within an organization-defined time period when allocated audit log storage volume reaches an organization-defined percentage of repository maximum audit log storage capacity.

800-53 Rev. 4 :: AU-5 (1)
800-53 Rev. 5 :: AU-5 (1)

Group Title

SRG-OS-000047-GPOS-00023

Group ID

V-259469

Rule Version

APPL-14-001031

Rule Title

The macOS system must configure audit failure notification.

Rule ID

SV-259469r958426_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The audit service must be configured to immediately print messages to the console or email administrator users when an auditing failure occurs.

It is critical for the appropriate personnel to be made aware immediately if a system is at risk of failing to process audit logs as required. Without a real-time alert, security personnel may be unaware of a potentially harmful failure in the auditing system's capability, and system operation may be adversely affected.

Satisfies: SRG-OS-000047-GPOS-00023,SRG-OS-000344-GPOS-00135

Documentable

False

Check Content

Verify the macOS system is configured to produce audit failure notification with the following command:

/usr/bin/grep -c "logger -s -p" /etc/security/audit_warn

If the result is not "1", this is a finding.

Check System

C-63208r941027_chk

Fix Reference

F-63116r941028_fix

Fix Text

Configure the macOS system to produce audit failure notification with the following command:

/usr/bin/sed -i.bak 's/logger -p/logger -s -p/' /etc/security/audit_warn; /usr/sbin/audit -s

Identities

CCI-000140

Take organization-defined actions upon audit failure include, shutting down the system, overwriting oldest audit records, and stopping the generation of audit records.

800-53 :: AU-5 b
800-53 Rev. 4 :: AU-5 b
800-53 Rev. 5 :: AU-5 b
800-53A :: AU-5.1 (iv)

CCI-001858

Provide an alert in an organization-defined real-time-period to organization-defined personnel, roles, and/or locations when organization-defined audit failure events requiring real-time alerts occur.

800-53 Rev. 4 :: AU-5 (2)
800-53 Rev. 5 :: AU-5 (2)

Group Title

SRG-OS-000365-GPOS-00152

Group ID

V-259470

Rule Version

APPL-14-001044

Rule Title

The macOS system must configure the system to audit all authorization and authentication events.

Rule ID

SV-259470r1009588_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The auditing system must be configured to flag authorization and authentication (aa) events.

Authentication events contain information about the identity of a user, server, or client. Authorization events contain information about permissions, rights, and rules. If audit records do not include aa events, it is difficult to identify incidents and to correlate incidents to subsequent events.

Audit records can be generated from various components within the information system (e.g., via a module or policy filter).

Satisfies: SRG-OS-000365-GPOS-00152,SRG-OS-000392-GPOS-00172,SRG-OS-000458-GPOS-00203,SRG-OS-000463-GPOS-00207,SRG-OS-000465-GPOS-00209,SRG-OS-000466-GPOS-00210,SRG-OS-000467-GPOS-00211,SRG-OS-000468-GPOS-00212,SRG-OS-000471-GPOS-00215,SRG-OS-000471-GPOS-00216,SRG-OS-000475-GPOS-00220,SRG-OS-000477-GPOS-00222

Documentable

False

Check Content

Verify the macOS system is configured to audit logon events with the following command:

/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec 'aa'

If the result is not "1", this is a finding.

Check System

C-63209r941030_chk

Fix Reference

F-63117r941031_fix

Fix Text

Configure the macOS system to audit logon events with the following command:

/usr/bin/grep -qE "^flags.*[^-]aa" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,aa/' /etc/security/audit_control; /usr/sbin/audit -s

Identities

CCI-000172

Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

800-53 :: AU-12 c
800-53 Rev. 4 :: AU-12 c
800-53 Rev. 5 :: AU-12 c
800-53A :: AU-12.1 (iv)

CCI-001814

The Information system supports auditing of the enforcement actions.

800-53 Rev. 4 :: CM-5 (1)

CCI-002884

Log organization-defined audit events for nonlocal maintenance and diagnostic sessions.

800-53 Rev. 4 :: MA-4 (1) (a)
800-53 Rev. 5 :: MA-4 (1) (a)

CCI-003938

Automatically generate audit records of the enforcement actions.

800-53 Rev. 5 :: CM-5 (1) (b)

Group Title

SRG-OS-000066-GPOS-00034

Group ID

V-259471

Rule Version

APPL-14-001060

Rule Title

The macOS system must set smart card certificate trust to moderate.

Rule ID

SV-259471r1009589_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS system must be configured to block access to users who are no longer authorized (i.e., users with revoked certificates).

To prevent the use of untrusted certificates, the certificates on a smart card must meet the following criteria: its issuer has a system-trusted certificate, the certificate is not expired, its "valid-after" date is in the past, and it passes Certificate Revocation List (CRL) and Online Certificate Status Protocol (OCSP) checking.

By setting the smart card certificate trust level to moderate, the system will execute a soft revocation, i.e., if the OCSP/CRL server is unreachable, authentication will still succeed.

Note: Before applying this setting, refer to the smart card supplemental guidance.

Satisfies: SRG-OS-000066-GPOS-00034,SRG-OS-000377-GPOS-00162,SRG-OS-000384-GPOS-00167,SRG-OS-000403-GPOS-00182

Documentable

False

Check Content

Verify the macOS system is configured to check the revocation status of user certificates with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.security.smartcard')\

.objectForKey('checkCertificateTrust').js

EOS

If the result is not "2", this is a finding.

Check System

C-63210r941033_chk

Fix Reference

F-63118r941034_fix

Fix Text

Configure the macOS system to check the revocation status of user certificates by installing the "com.apple.security.smartcard" configuration profile.

Note: To ensure continued access to the operating system, consult the supplemental guidance provided with the STIG before applying the configuration profile.

Identities

CCI-000185

For public key-based authentication, validate certificates by constructing and verifying a certification path to an accepted trust anchor including checking certificate status information.

800-53 :: IA-5 (2)
800-53 Rev. 4 :: IA-5 (2) (a)
800-53 Rev. 5 :: IA-5 (2) (b) (1)
800-53A :: IA-5 (2).1

CCI-001954

Electronically verifies Personal Identity Verification-compliant credentials.

800-53 Rev. 4 :: IA-2 (12)
800-53 Rev. 5 :: IA-2 (12)

CCI-001991

The information system, for PKI-based authentication, implements a local cache of revocation data to support path discovery and validation in case of inability to access revocation information via the network.

800-53 Rev. 4 :: IA-5 (2) (d)

CCI-002470

Only allow the use of organization-defined certificate authorities for verification of the establishment of protected sessions.

800-53 Rev. 4 :: SC-23 (5)
800-53 Rev. 5 :: SC-23 (5)

CCI-004068

For public key-based authentication, implement a local cache of revocation data to support path discovery and validation.

800-53 Rev. 5 :: IA-5 (2) (b) (2)

Group Title

SRG-OS-000109-GPOS-00056

Group ID

V-259472

Rule Version

APPL-14-001100

Rule Title

The macOS system must disable root logon for SSH.

Rule ID

SV-259472r1009590_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If SSH is enabled to ensure individual accountability and prevent unauthorized access, logging in as root via SSH must be disabled.

The macOS system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator, and administrator users must never log in directly as root.

Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

Satisfies: SRG-OS-000109-GPOS-00056,SRG-OS-000364-GPOS-00151

Documentable

False

Check Content

Verify the macOS system is configured to disable root login for SSH with the following command:

/usr/sbin/sshd -G | /usr/bin/awk '/permitrootlogin/{print $2}'

If the result is not "no", this is a finding.

Check System

C-63211r941036_chk

Fix Reference

F-63119r941037_fix

Fix Text

Configure the macOS system to disable root login for SSH with the following command:

include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config | /usr/bin/tr -d '*')

if [[ -z $include_dir ]]; then

/usr/bin/sed -i.bk "1s/.*/Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config

/usr/bin/grep -qxF 'permitrootlogin no' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "permitrootlogin no" >> "${include_dir}01-mscp-sshd.conf"

for file in $(ls ${include_dir}); do

if [[ "$file" == "100-macos.conf" ]]; then

continue

if [[ "$file" == "01-mscp-sshd.conf" ]]; then

break

/bin/mv ${include_dir}${file} ${include_dir}20-${file}

done

Identities

CCI-000770

The organization requires individuals to be authenticated with an individual authenticator when a group authenticator is employed.

800-53 :: IA-2 (5) (b)
800-53 Rev. 4 :: IA-2 (5)
800-53A :: IA-2 (5).2 (ii)

CCI-001813

Enforce access restrictions using organization-defined mechanisms.

800-53 Rev. 4 :: CM-5 (1)
800-53 Rev. 5 :: CM-5 (1) (a)

CCI-004045

Require users to be individually authenticated before granting access to the shared accounts or resources.

800-53 Rev. 5 :: IA-2 (5)

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259473

Rule Version

APPL-14-001110

Rule Title

The macOS system must configure audit_control group to wheel.

Rule ID

SV-259473r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

/etc/security/audit_control must have the group set to wheel.

The audit service must be configured with the correct group ownership to prevent normal users from manipulation audit log configurations.

Audit logs contain sensitive data about the system and users. If log files are set to be readable and writable only by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000063-GPOS-00032,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with the audit_control group to wheel with the following command:

/bin/ls -dn /etc/security/audit_control | /usr/bin/awk '{print $4}'

If the result is not "0", this is a finding.

Check System

C-63212r941039_chk

Fix Reference

F-63120r941040_fix

Fix Text

Configure the macOS system with the audit_control group to wheel with the following command:

/usr/bin/chgrp wheel /etc/security/audit_control

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000171

Allow organization-defined personnel or roles to select the event types that are to be logged by specific components of the system.

800-53 :: AU-12 b
800-53 Rev. 4 :: AU-12 b
800-53 Rev. 5 :: AU-12 b
800-53A :: AU-12.1 (iii)

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259474

Rule Version

APPL-14-001120

Rule Title

The macOS system must configure audit_control owner to root.

Rule ID

SV-259474r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

/etc/security/audit_control must have the owner set to root.

The audit service must be configured with the correct ownership to prevent normal users from manipulation audit log configurations.

Audit logs contain sensitive data about the system and users. If log files are set to be readable and writable only by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000063-GPOS-00032,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured with the audit_control owner to root with the following command:

/bin/ls -dn /etc/security/audit_control | /usr/bin/awk '{print $3}'

If the result is not "0", this is a finding.

Check System

C-63213r941042_chk

Fix Reference

F-63121r941043_fix

Fix Text

Configure the macOS system with the audit_control owner to root with the following command:

/usr/sbin/chown root /etc/security/audit_control

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000171

Allow organization-defined personnel or roles to select the event types that are to be logged by specific components of the system.

800-53 :: AU-12 b
800-53 Rev. 4 :: AU-12 b
800-53 Rev. 5 :: AU-12 b
800-53A :: AU-12.1 (iii)

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259475

Rule Version

APPL-14-001130

Rule Title

The macOS system must configure audit_control to mode 440 or less permissive.

Rule ID

SV-259475r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

/etc/security/audit_control must be configured so that it is readable only by the root user and group wheel.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000063-GPOS-00032,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured audit_control to mode 440 or less with the following command:

/bin/ls -l /etc/security/audit_control | /usr/bin/awk '!/-r--[r-]-----|current|total/{print $1}' | /usr/bin/wc -l | /usr/bin/xargs

If the results are not "0", this is a finding.

Check System

C-63214r941045_chk

Fix Reference

F-63122r941046_fix

Fix Text

Configure the macOS system with the audit_control to mode 440 with the following command:

/bin/chmod 440 /etc/security/audit_control

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000171

Allow organization-defined personnel or roles to select the event types that are to be logged by specific components of the system.

800-53 :: AU-12 b
800-53 Rev. 4 :: AU-12 b
800-53 Rev. 5 :: AU-12 b
800-53A :: AU-12.1 (iii)

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000057-GPOS-00027

Group ID

V-259476

Rule Version

APPL-14-001140

Rule Title

The macOS system must configure audit_control to not contain access control lists.

Rule ID

SV-259476r958434_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

/etc/security/audit_control must not contain Access Control Lists (ACLs).

/etc/security/audit_control contains sensitive configuration data about the audit service. This rule ensures that the audit service is configured to be readable and writable only by system administrators in order to prevent normal users from manipulating audit logs.

Satisfies: SRG-OS-000057-GPOS-00027,SRG-OS-000058-GPOS-00028,SRG-OS-000059-GPOS-00029,SRG-OS-000063-GPOS-00032,SRG-OS-000256-GPOS-00097,SRG-OS-000257-GPOS-00098,SRG-OS-000258-GPOS-00099

Documentable

False

Check Content

Verify the macOS system is configured without ACLs applied to audit_control with the following command:

/bin/ls -le /etc/security/audit_control | /usr/bin/awk '{print $1}' | /usr/bin/grep -c ":"

If the result is not "0", this is a finding.

Check System

C-63215r941048_chk

Fix Reference

F-63123r941049_fix

Fix Text

Configure the macOS system without ACLs applied to audit_control with the following command:

/bin/chmod -N /etc/security/audit_control

Identities

CCI-000162

Protect audit information from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000163

Protect audit information from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000164

Protect audit information from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-000171

Allow organization-defined personnel or roles to select the event types that are to be logged by specific components of the system.

800-53 :: AU-12 b
800-53 Rev. 4 :: AU-12 b
800-53 Rev. 5 :: AU-12 b
800-53A :: AU-12.1 (iii)

CCI-001493

Protect audit tools from unauthorized access.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9 a
800-53A :: AU-9.1

CCI-001494

Protect audit tools from unauthorized modification.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

CCI-001495

Protect audit tools from unauthorized deletion.

800-53 :: AU-9
800-53 Rev. 4 :: AU-9
800-53 Rev. 5 :: AU-9
800-53A :: AU-9.1

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259478

Rule Version

APPL-14-002001

Rule Title

The macOS system must disable Server Message Block sharing.

Rule ID

SV-259478r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Support for Server Message Block (SMB) file sharing is nonessential and must be disabled.

The information system must be configured to provide only essential capabilities.

Documentable

False

Check Content

Verify the macOS system is configured to disable Server Message Block sharing with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"com.apple.smbd" => disabled'

If the result is not "1", this is a finding.

Check System

C-63217r941054_chk

Fix Reference

F-63125r941055_fix

Fix Text

Configure the macOS system to disable Server Message Block sharing with the following command:

/bin/launchctl disable system/com.apple.smbd

The system may need to be restarted for the update to take effect.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259479

Rule Version

APPL-14-002003

Rule Title

The macOS system must disable Network File System service.

Rule ID

SV-259479r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Support for Network File Systems (NFS) services is nonessential and, therefore, must be disabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable network file system service with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"com.apple.nfsd" => disabled'

If the result is not "1", this is a finding.

Check System

C-63218r941057_chk

Fix Reference

F-63126r941058_fix

Fix Text

Configure the macOS system to disable network file system service with the following command:

/bin/launchctl disable system/com.apple.nfsd

The system may need to be restarted for the update to take effect.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259480

Rule Version

APPL-14-002004

Rule Title

The macOS system must disable Location Services.

Rule ID

SV-259480r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The information system must be configured to provide only essential capabilities. Disabling Location Services helps prevent the unauthorized connection of devices, unauthorized transfer of information, and unauthorized tunneling.

Documentable

False

Check Content

Verify the macOS system is configured to disable Location Services with the following command:

/usr/bin/sudo -u _locationd /usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.locationd')\

.objectForKey('LocationServicesEnabled').js

EOS

If the result is not "false", this is a finding.

Check System

C-63219r941060_chk

Fix Reference

F-63127r941061_fix

Fix Text

Configure the macOS system to disable Location Services with the following command:

/usr/bin/defaults write /var/db/locationd/Library/Preferences/ByHost/com.apple.locationd LocationServicesEnabled -bool false; /bin/launchctl kickstart -k system/com.apple.locationd

The system may need to be restarted for the update to take effect.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259481

Rule Version

APPL-14-002005

Rule Title

The macOS system must disable Bonjour multicast.

Rule ID

SV-259481r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Bonjour multicast advertising must be disabled to prevent the system from broadcasting its presence and available services over network interfaces.

Documentable

False

Check Content

Verify the macOS system is configured to disable Bonjour multicast with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.mDNSResponder')\

.objectForKey('NoMulticastAdvertisements').js

EOS

If the result is not "true", this is a finding.

Check System

C-63220r941063_chk

Fix Reference

F-63128r941064_fix

Fix Text

Configure the macOS system to disable Bonjour multicast by installing the "com.apple.mDNSResponder" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259482

Rule Version

APPL-14-002006

Rule Title

The macOS system must disable Unix-to-Unix Copy Protocol service.

Rule ID

SV-259482r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system must not have the Unix-to-Unix Copy Protocol (UUCP) service active.

UUCP, a set of programs that enable the sending of files between different Unix systems as well as sending commands to be executed on another system, is not essential and must be disabled in order to prevent the unauthorized connection of devices, transfer of information, and tunneling.

Note: UUCP service is disabled at startup by default macOS.

Documentable

False

Check Content

Verify the macOS system is configured to disable Unix-to-Unix copy protocol service with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"com.apple.uucp" => disabled'

If the result is not "1", this is a finding.

Check System

C-63221r941066_chk

Fix Reference

F-63129r941067_fix

Fix Text

Configure the macOS system to disable Unix-to-Unix copy protocol service with the following command:

/bin/launchctl disable system/com.apple.uucp

The system may need to be restarted for the update to take effect.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259483

Rule Version

APPL-14-002007

Rule Title

The macOS system must disable Internet Sharing.

Rule ID

SV-259483r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If the system does not require Internet Sharing, support for it is nonessential and must be disabled.

The information system must be configured to provide only essential capabilities. Disabling Internet sharing helps prevent the unauthorized connection of devices, unauthorized transfer of information, and unauthorized tunneling.

Documentable

False

Check Content

Verify the macOS system is configured to disable Internet Sharing with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.MCX')\

.objectForKey('forceInternetSharingOff').js

EOS

If the result is not "true", this is a finding.

Check System

C-63222r941069_chk

Fix Reference

F-63130r941070_fix

Fix Text

Configure the macOS system to disable Internet Sharing by installing the "com.apple.MCX" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259484

Rule Version

APPL-14-002008

Rule Title

The macOS system must disable the built-in web server.

Rule ID

SV-259484r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The built-in web server is a nonessential service built into macOS and must be disabled.

Note: The built in web server service is disabled at startup by default macOS.

Documentable

False

Check Content

Verify the macOS system is configured to disable the built-in web server with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"org.apache.httpd" => disabled'

If the result is not "1", this is a finding.

Check System

C-63223r941072_chk

Fix Reference

F-63131r941073_fix

Fix Text

Configure the macOS system to disable the built-in web server with the following command:

/bin/launchctl disable system/org.apache.httpd

The system may need to be restarted for the update to take effect.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259485

Rule Version

APPL-14-002009

Rule Title

The macOS system must disable AirDrop.

Rule ID

SV-259485r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

AirDrop must be disabled to prevent file transfers to or from unauthorized devices. AirDrop allows users to share and receive files from other nearby Apple devices.

Satisfies: SRG-OS-000080-GPOS-00048,SRG-OS-000095-GPOS-00049,SRG-OS-000300-GPOS-00118

Documentable

False

Check Content

Verify the macOS system is configured to disable AirDrop with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowAirDrop').js

EOS

If the result is not "false", this is a finding.

Check System

C-63224r941075_chk

Fix Reference

F-63132r941076_fix

Fix Text

Configure the macOS system to disable AirDrop by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

CCI-001443

Protect wireless access to the system using authentication of users and/or devices.

800-53 :: AC-18 (1)
800-53 Rev. 4 :: AC-18 (1)
800-53 Rev. 5 :: AC-18 (1)
800-53A :: AC-18 (1).1

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259486

Rule Version

APPL-14-002010

Rule Title

The macOS system must disable FaceTime.app.

Rule ID

SV-259486r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in FaceTime.app must be disabled.

The FaceTime.app establishes a connection to Apple's iCloud service, even when security controls have been put in place to disable iCloud access.

[IMPORTANT]

====

Apple has deprecated the use of application restriction controls (https://github.com/apple/device-management/blob/eb51fb0cb9626cac4717858556912c257a734ce0/mdm/profiles/com.apple.applicationaccess.new.yaml#L67-L70). Using these controls may not work as expected. Third-party software may be required to fulfill the compliance requirements.

====

Documentable

False

Check Content

Verify the macOS system is configured to disable FaceTime.app with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess.new')\

.objectForKey('familyControlsEnabled'))

let pathlist = $.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess.new')\

.objectForKey('pathBlackList').js

for ( let app in pathlist ) {

if ( ObjC.unwrap(pathlist[app]) == "/Applications/FaceTime.app" && pref1 == true ){

return("true")

}

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63225r941078_chk

Fix Reference

F-63133r941079_fix

Fix Text

Configure the macOS system to disable FaceTime.app by installing the "com.apple.applicationaccess.new" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259487

Rule Version

APPL-14-002012

Rule Title

The macOS system must disable the iCloud Calendar services.

Rule ID

SV-259487r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Calendar.app connection to Apple's iCloud service must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated calendar synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Calendar services with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudCalendar').js

EOS

If the result is not "false", this is a finding.

Check System

C-63226r941081_chk

Fix Reference

F-63134r941082_fix

Fix Text

Configure the macOS system to disable iCloud Calendar services by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259488

Rule Version

APPL-14-002013

Rule Title

The macOS system must disable iCloud Reminders.

Rule ID

SV-259488r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Reminders.app connection to Apple's iCloud service must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated reminders synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Reminders with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudReminders').js

EOS

If the result is not "false", this is a finding.

Check System

C-63227r941084_chk

Fix Reference

F-63135r941085_fix

Fix Text

Configure the macOS system to disable iCloud Reminders by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259489

Rule Version

APPL-14-002014

Rule Title

The macOS system must disable iCloud Address Book.

Rule ID

SV-259489r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Contacts.app connection to Apple's iCloud service must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data, and, therefore, automated contact synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Address Book with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudAddressBook').js

EOS

If the result is not "false", this is a finding.

Check System

C-63228r941087_chk

Fix Reference

F-63136r941088_fix

Fix Text

Configure the macOS system to disable iCloud Address Book by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259490

Rule Version

APPL-14-002015

Rule Title

The macOS system must disable iCloud Mail.

Rule ID

SV-259490r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Mail.app connection to Apple's iCloud service must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated mail synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Mail with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudMail').js

EOS

If the result is not "false", this is a finding.

Check System

C-63229r941090_chk

Fix Reference

F-63137r941091_fix

Fix Text

Configure the macOS system to disable iCloud Mail by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259491

Rule Version

APPL-14-002016

Rule Title

The macOS system must disable iCloud Notes.

Rule ID

SV-259491r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Notes.app connection to Apple's iCloud service must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated Notes synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Notes with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudNotes').js

EOS

If the result is not "false", this is a finding.

Check System

C-63230r941093_chk

Fix Reference

F-63138r941094_fix

Fix Text

Configure the macOS system to disable iCloud Notes by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259492

Rule Version

APPL-14-002017

Rule Title

The macOS system must disable the camera.

Rule ID

SV-259492r1009529_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

macOS must be configured to disable the camera.

Documentable

False

Check Content

If the device or operating system does not have a camera installed, this requirement is not applicable.

This requirement is not applicable to mobile devices (smartphones and tablets), where the use of the camera is a local authorizing official (AO) decision.

This requirement is not applicable to dedicated VTC suites located in approved VTC locations that are centrally managed.

For an external camera, if there is not a method for the operator to manually disconnect camera at the end of collaborative computing sessions, this is a finding.

For a built-in camera, the camera must be protected by a camera cover (e.g., laptop camera cover slide) when not in use. If the built-in camera is not protected with a camera cover, or is not physically disabled, this is a finding.

If the camera is not disconnected, covered, or physically disabled, verify the macOS system is configured to disable the camera with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCamera').js

EOS

If the result is not "false", this is a finding.

Check System

C-63231r1009528_chk

Fix Reference

F-63139r941097_fix

Fix Text

Configure the macOS system to disable the camera by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259493

Rule Version

APPL-14-002020

Rule Title

The macOS system must disable Siri.

Rule ID

SV-259493r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Support for Siri is nonessential and must be disabled.

The information system must be configured to provide only essential capabilities.

Documentable

False

Check Content

Verify the macOS system is configured to disable Siri with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowAssistant').js

EOS

If the result is not "false", this is a finding.

Check System

C-63232r941099_chk

Fix Reference

F-63140r941100_fix

Fix Text

Configure the macOS system to disable Siri by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000205-GPOS-00083

Group ID

V-259494

Rule Version

APPL-14-002021

Rule Title

The macOS system must disable sending diagnostic and usage data to Apple.

Rule ID

SV-259494r958564_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The ability to submit diagnostic data to Apple must be disabled.

The information system must be configured to provide only essential capabilities. Disabling the submission of diagnostic and usage information will mitigate the risk of unwanted data being sent to Apple.

Satisfies: SRG-OS-000205-GPOS-00083,SRG-OS-000206-GPOS-00084

Documentable

False

Check Content

Verify the macOS system is configured to disable sending diagnostic and usage data to Apple with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let pref1 = $.NSUserDefaults.alloc.initWithSuiteName('com.apple.SubmitDiagInfo')\

.objectForKey('AutoSubmit').js

let pref2 = $.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowDiagnosticSubmission').js

if ( pref1 == false && pref2 == false ){

return("true")

} else {

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63233r941102_chk

Fix Reference

F-63141r941103_fix

Fix Text

Configure the macOS system to disable sending diagnostic and usage data to Apple by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-001312

Generates error messages that provide information necessary for corrective actions without revealing information that could be exploited.

800-53 :: SI-11 b
800-53 Rev. 4 :: SI-11 a
800-53 Rev. 5 :: SI-11 a
800-53A :: SI-11.1 (iii)

CCI-001314

Reveal error messages only to organization-defined personnel or roles.

800-53 :: SI-11 c
800-53 Rev. 4 :: SI-11 b
800-53 Rev. 5 :: SI-11 b
800-53A :: SI-11.1 (iv)

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259495

Rule Version

APPL-14-002022

Rule Title

The macOS system must disable Remote Apple Events.

Rule ID

SV-259495r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If the system does not require Remote Apple Events, support for Apple Remote Events is nonessential and must be disabled.

The information system must be configured to provide only essential capabilities. Disabling Remote Apple Events helps prevent the unauthorized connection of devices, the unauthorized transfer of information, and unauthorized tunneling.

Satisfies: SRG-OS-000080-GPOS-00048,SRG-OS-000096-GPOS-00050

Documentable

False

Check Content

Verify the macOS system is configured to disable Remote Apple Events with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"com.apple.AEServer" => disabled'

If the result is not "1", this is a finding.

Check System

C-63234r941105_chk

Fix Reference

F-63142r941106_fix

Fix Text

Configure the macOS system to disable Remote Apple Events with the following commands:

/usr/sbin/systemsetup -setremoteappleevents off

/bin/launchctl disable system/com.apple.AEServer

Note: Systemsetup with -setremoteappleevents flag will fail unless Full Disk Access to systemsetup or its parent process is granted. This requires supervision.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

CCI-000382

Configure the system to prohibit or restrict the use of organization-defined prohibited or restricted functions, system ports, protocols, software, and/or services.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 b
800-53 Rev. 5 :: CM-7 b
800-53A :: CM-7.1 (iii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259496

Rule Version

APPL-14-002035

Rule Title

The macOS system must disable Apple ID setup during Setup Assistant.

Rule ID

SV-259496r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The prompt for Apple ID setup during Setup Assistant must be disabled.

macOS will automatically prompt new users to set up an Apple ID while they are going through Setup Assistant if this is not disabled, misleading new users to think they need to create Apple ID accounts upon their first log on.

Documentable

False

Check Content

Verify the macOS system is configured to disable Apple ID setup during Setup Assistant with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SetupAssistant.managed')\

.objectForKey('SkipCloudSetup').js

EOS

If the result is not "true", this is a finding.

Check System

C-63235r941108_chk

Fix Reference

F-63143r941109_fix

Fix Text

Configure the macOS system to disable Apple ID setup during Setup Assistant by installing the "com.apple.SetupAssistant.managed" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259497

Rule Version

APPL-14-002036

Rule Title

The macOS system must disable Privacy Setup services during Setup Assistant.

Rule ID

SV-259497r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The prompt for Privacy Setup services during Setup Assistant must be disabled.

Organizations must apply organizationwide configuration settings. The macOS Privacy Setup services prompt guides new users through enabling their own specific privacy settings; this is not essential and, therefore, must be disabled to prevent against the risk of individuals electing privacy settings with the potential to override organizationwide settings.

Documentable

False

Check Content

Verify the macOS system is configured to disable Privacy Setup services during Setup Assistant with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SetupAssistant.managed')\

.objectForKey('SkipPrivacySetup').js

EOS

If the result is not "true", this is a finding.

Check System

C-63236r941111_chk

Fix Reference

F-63144r941112_fix

Fix Text

Configure the macOS system to disable Privacy Setup services during Setup Assistant by installing the "com.apple.SetupAssistant.managed" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259498

Rule Version

APPL-14-002037

Rule Title

The macOS system must disable iCloud Storage Setup during Setup Assistant.

Rule ID

SV-259498r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The prompt to set up iCloud storage services during Setup Assistant must be disabled.

The default behavior of macOS is to prompt new users to set up storage in iCloud. Disabling the iCloud storage setup prompt provides organizations more control over the storage of their data.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Storage Setup during Setup Assistant with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SetupAssistant.managed')\

.objectForKey('SkipiCloudStorageSetup').js

EOS

If the result is not "true", this is a finding.

Check System

C-63237r941114_chk

Fix Reference

F-63145r941115_fix

Fix Text

Configure the macOS system to disable iCloud Storage Setup during Setup Assistant by installing the "com.apple.SetupAssistant.managed" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259500

Rule Version

APPL-14-002039

Rule Title

The macOS system must disable Siri Setup during Setup Assistant.

Rule ID

SV-259500r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The prompt for Siri during Setup Assistant must be disabled.

Organizations must apply organizationwide configuration settings. The macOS Siri Assistant Setup prompt guides new users through enabling their own specific Siri settings; this is not essential and, therefore, must be disabled to prevent against the risk of individuals electing Siri settings with the potential to override organizationwide settings.

Documentable

False

Check Content

Verify the macOS system is configured to disable Siri Setup during Setup Assistant with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SetupAssistant.managed')\

.objectForKey('SkipSiriSetup').js

EOS

If the result is not "true", this is a finding.

Check System

C-63239r941120_chk

Fix Reference

F-63147r941121_fix

Fix Text

Configure the macOS system to disable Siri Setup during Setup Assistant by installing the "com.apple.SetupAssistant.managed" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259501

Rule Version

APPL-14-002040

Rule Title

The macOS system must disable iCloud Keychain synchronization.

Rule ID

SV-259501r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS system's ability to automatically synchronize a user's passwords to their iCloud account must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, password management and synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Keychain synchronization with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudKeychainSync').js

EOS

If the result is not "false", this is a finding.

Check System

C-63240r941123_chk

Fix Reference

F-63148r941124_fix

Fix Text

Configure the macOS system to disable iCloud Keychain synchronization by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259502

Rule Version

APPL-14-002041

Rule Title

The macOS system must disable iCloud Document synchronization.

Rule ID

SV-259502r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in iCloud document synchronization service must be disabled to prevent organizational data from being synchronized to personal or nonapproved storage.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated document synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Document synchronization with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudDocumentSync').js

EOS

If the result is not "false", this is a finding.

Check System

C-63241r941126_chk

Fix Reference

F-63149r941127_fix

Fix Text

Configure the macOS system to disable iCloud Document synchronization by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259503

Rule Version

APPL-14-002042

Rule Title

The macOS system must disable iCloud Bookmarks.

Rule ID

SV-259503r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Safari.app bookmark synchronization via the iCloud service must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated bookmark synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Bookmarks with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudBookmarks').js

EOS

If the result is not "false", this is a finding.

Check System

C-63242r941129_chk

Fix Reference

F-63150r941130_fix

Fix Text

Configure the macOS system to disable iCloud Bookmarks by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259504

Rule Version

APPL-14-002043

Rule Title

The macOS system must disable iCloud Photo Library.

Rule ID

SV-259504r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Photos.app connection to Apple's iCloud service must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated photo synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable the iCloud Photo Library with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudPhotoLibrary').js

EOS

If the result is not "false", this is a finding.

Check System

C-63243r941132_chk

Fix Reference

F-63151r941133_fix

Fix Text

Configure the macOS system to disable the iCloud Photo Library by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259505

Rule Version

APPL-14-002050

Rule Title

The macOS system must disable Screen Sharing and Apple Remote Desktop.

Rule ID

SV-259505r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Support for both Screen Sharing and Apple Remote Desktop (ARD) is nonessential and must be disabled.

The information system must be configured to provide only essential capabilities. Disabling screen sharing and ARD helps prevent the unauthorized connection of devices, the unauthorized transfer of information, and unauthorized tunneling.

Documentable

False

Check Content

Verify the macOS system is configured to disable Screen Sharing and Apple Remote Desktop with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"com.apple.screensharing" => disabled'

If the result is not "1", this is a finding.

Check System

C-63244r941135_chk

Fix Reference

F-63152r941136_fix

Fix Text

Configure the macOS system to disable Screen Sharing and Apple Remote Desktop with the following command:

/bin/launchctl disable system/com.apple.screensharing

The system may need to be restarted for the update to take effect.

Note: This will apply to the whole system.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259506

Rule Version

APPL-14-002051

Rule Title

The macOS system must disable the TouchID System Settings pane.

Rule ID

SV-259506r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The System Settings pane for TouchID must be disabled.

Disabling the System Settings pane prevents the users from configuring TouchID.

Documentable

False

Check Content

Verify the macOS system is configured to disable the TouchID System Settings pane with the following command:

/usr/bin/profiles show -output stdout-xml | /usr/bin/xmllint --xpath '//key[text()="DisabledSystemSettings"]/following-sibling::*[1]' - | /usr/bin/grep -c "com.apple.Touch-ID-Settings.extension"

If the result is not "1", this is a finding.

Check System

C-63245r941138_chk

Fix Reference

F-63153r941139_fix

Fix Text

Configure the macOS system to disable the TouchID System Settings pane by installing the "com.apple.systempreferences" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259507

Rule Version

APPL-14-002052

Rule Title

The macOS system must disable the System Settings pane for Wallet and Apple Pay.

Rule ID

SV-259507r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The System Settings pane for Wallet and Apple Pay must be disabled.

Disabling the System Settings pane prevents the users from configuring Wallet and Apple Pay.

Documentable

False

Check Content

Verify the macOS system is configured to disable the System Settings pane for Wallet and Apple Pay with the following command:

/usr/bin/profiles show -output stdout-xml | /usr/bin/xmllint --xpath '//key[text()="DisabledSystemSettings"]/following-sibling::*[1]' - | /usr/bin/grep -c "com.apple.WalletSettingsExtension"

If the result is not "1", this is a finding.

Check System

C-63246r941141_chk

Fix Reference

F-63154r941142_fix

Fix Text

Configure the macOS system to disable the System Settings pane for Wallet and Apple Pay by installing the "com.apple.systempreferences" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259508

Rule Version

APPL-14-002053

Rule Title

The macOS system must disable the system settings pane for Siri.

Rule ID

SV-259508r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The System Settings pane for Siri must be hidden.

Hiding the System Settings pane prevents the users from configuring Siri.

Documentable

False

Check Content

Verify the macOS system is configured to disable the system settings pane for Siri with the following command:

/usr/bin/profiles show -output stdout-xml | /usr/bin/xmllint --xpath '//key[text()="DisabledSystemSettings"]/following-sibling::*[1]' - | /usr/bin/grep -c com.apple.Siri-Settings.extension

If the result is not "1", this is a finding.

Check System

C-63247r941144_chk

Fix Reference

F-63155r941145_fix

Fix Text

Configure the macOS system to disable the system settings pane for Siri by installing the "com.apple.systempreferences" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000364-GPOS-00151

Group ID

V-259511

Rule Version

APPL-14-002063

Rule Title

The macOS system must disable the guest account.

Rule ID

SV-259511r958796_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Guest access must be disabled.

Turning off guest access prevents anonymous users from accessing files.

Documentable

False

Check Content

Verify the macOS system is configured to disable the guest account with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.MCX')\

.objectForKey('DisableGuestAccount'))

let pref2 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.MCX')\

.objectForKey('EnableGuestAccount'))

if ( pref1 == true && pref2 == false ) {

return("true")

} else {

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63250r941153_chk

Fix Reference

F-63158r941154_fix

Fix Text

Configure the macOS system to disable the guest account by installing the "com.apple.MCX" configuration profile.

Identities

CCI-001813

Enforce access restrictions using organization-defined mechanisms.

800-53 Rev. 4 :: CM-5 (1)
800-53 Rev. 5 :: CM-5 (1) (a)

Group Title

SRG-OS-000480-GPOS-00229

Group ID

V-259513

Rule Version

APPL-14-002066

Rule Title

The macOS system must disable unattended or automatic log on to the system.

Rule ID

SV-259513r991591_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Automatic logon must be disabled.

When automatic logons are enabled, the default user account is automatically logged on at boot time without prompting the user for a password. Even if the screen is later locked, a malicious user would be able to reboot the computer and find it already logged in. Disabling automatic logons mitigates this risk.

Documentable

False

Check Content

Verify the macOS system is configured to disable unattended or automatic logon to the system with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow')\

.objectForKey('com.apple.login.mcx.DisableAutoLoginClient').js

EOS

If the result is not "true", this is a finding.

Check System

C-63252r941159_chk

Fix Reference

F-63160r941160_fix

Fix Text

Configure the macOS system to disable unattended or automatic logon to the system by installing the "com.apple.loginwindow" configuration profile.

Identities

CCI-000366

Implement the security configuration settings.

800-53 :: CM-6 b
800-53 Rev. 4 :: CM-6 b
800-53 Rev. 5 :: CM-6 b
800-53A :: CM-6.1 (iv)

Group Title

SRG-OS-000480-GPOS-00230

Group ID

V-259514

Rule Version

APPL-14-002068

Rule Title

The macOS system must secure user's home folders.

Rule ID

SV-259514r991592_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system must be configured to prevent access to other user's home folders.

The default behavior of macOS is to allow all valid users access to the top level of every other user's home folder while restricting access only to the Apple default folders within.

Documentable

False

Check Content

Verify the macOS system is configured so that permissions are set correctly on user home directories with the following command:

/usr/bin/find /System/Volumes/Data/Users -mindepth 1 -maxdepth 1 -type d ! $ -perm 700 -o -perm 711 $ | /usr/bin/grep -v "Shared" | /usr/bin/grep -v "Guest" | /usr/bin/wc -l | /usr/bin/xargs

If the result is not "0", this is a finding.

Check System

C-63253r941162_chk

Fix Reference

F-63161r941163_fix

Fix Text

Configure the macOS system to set the appropriate permissions for each user on the system with the following command:

IFS=$'\n'

for userDirs in $( /usr/bin/find /System/Volumes/Data/Users -mindepth 1 -maxdepth 1 -type d ! $ -perm 700 -o -perm 711 $ | /usr/bin/grep -v "Shared" | /usr/bin/grep -v "Guest" ); do

/bin/chmod og-rwx "$userDirs"

done

unset IFS

Identities

CCI-000366

Implement the security configuration settings.

800-53 :: CM-6 b
800-53 Rev. 4 :: CM-6 b
800-53 Rev. 5 :: CM-6 b
800-53A :: CM-6.1 (iv)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259516

Rule Version

APPL-14-002080

Rule Title

The macOS system must disable Airplay Receiver.

Rule ID

SV-259516r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Airplay Receiver allows users to send content from another Apple device to be displayed on the screen as it is being played from another device.

Support for Airplay Receiver is nonessential and must be disabled.

The information system must be configured to provide only essential capabilities.

Satisfies: SRG-OS-000095-GPOS-00049,SRG-OS-000300-GPOS-00118

Documentable

False

Check Content

Verify the macOS system is configured to disable Airplay Receiver with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowAirPlayIncomingRequests').js

EOS

If the result is not "false", this is a finding.

Check System

C-63255r941168_chk

Fix Reference

F-63163r941169_fix

Fix Text

Configure the macOS system to disable Airplay Receiver by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

CCI-001443

Protect wireless access to the system using authentication of users and/or devices.

800-53 :: AC-18 (1)
800-53 Rev. 4 :: AC-18 (1)
800-53 Rev. 5 :: AC-18 (1)
800-53A :: AC-18 (1).1

Group Title

SRG-OS-000028-GPOS-00009

Group ID

V-259517

Rule Version

APPL-14-002090

Rule Title

The macOS system must disable TouchID for unlocking the device.

Rule ID

SV-259517r958400_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

TouchID enables the ability to unlock a macOS system with a user's fingerprint.

TouchID must be disabled for "Unlocking your Mac" on all macOS devices that are capable of using TouchID.

The system must remain locked until the user establishes access using an authorized identification and authentication method.

Documentable

False

Check Content

Verify the macOS system is configured to disable TouchID for unlocking the device with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowFingerprintForUnlock').js

EOS

If the result is not "false", this is a finding.

Check System

C-63256r941171_chk

Fix Reference

F-63164r941172_fix

Fix Text

Configure the macOS system to disable TouchID for unlocking the device by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000056

Retain the device lock until the user reestablishes access using established identification and authentication procedures.

800-53 :: AC-11 b
800-53 Rev. 4 :: AC-11 b
800-53 Rev. 5 :: AC-11 b
800-53A :: AC-11.1 (iii)

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259518

Rule Version

APPL-14-002100

Rule Title

The macOS system must disable Media Sharing.

Rule ID

SV-259518r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Media sharing must be disabled.

When Media Sharing is enabled, the computer starts a network listening service that shares the contents of the user's music collection with other users in the same subnet.

The information system must be configured to provide only essential capabilities. Disabling Media Sharing helps prevent the unauthorized connection of devices and the unauthorized transfer of information. Disabling Media Sharing mitigates this risk.

Note: The Media Sharing preference panel will still allow "Home Sharing" and "Share media with guests" to be checked but the service will not be enabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable media sharing with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.preferences.sharing.SharingPrefsExtension')\

.objectForKey('homeSharingUIStatus'))

let pref2 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.preferences.sharing.SharingPrefsExtension')\

.objectForKey('legacySharingUIStatus'))

let pref3 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.preferences.sharing.SharingPrefsExtension')\

.objectForKey('mediaSharingUIStatus'))

if ( pref1 == 0 && pref2 == 0 && pref3 == 0 ) {

return("true")

} else {

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63257r941174_chk

Fix Reference

F-63165r941175_fix

Fix Text

Configure the macOS system to disable media sharing by installing the "com.apple.preferences.sharing.SharingPrefsExtension" configuration profile.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259519

Rule Version

APPL-14-002110

Rule Title

The macOS system must disable Bluetooth sharing.

Rule ID

SV-259519r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Bluetooth Sharing must be disabled.

Bluetooth Sharing allows users to wirelessly transmit files between the macOS and Bluetooth-enabled devices, including personally owned cellphones and tablets. A malicious user might introduce viruses or malware onto the system or extract sensitive files via Bluetooth Sharing. When Bluetooth Sharing is disabled, this risk is mitigated.

[NOTE]

====

The check and fix are for the currently logged on user. To get the currently logged on user, run the following.

[source,bash]

----

CURRENT_USER=$( /usr/sbin/scutil <<< "show State:/Users/ConsoleUser" | /usr/bin/awk '/Name :/ && ! /loginwindow/ { print $3 }' )

----

====

Satisfies: SRG-OS-000080-GPOS-00048,SRG-OS-000095-GPOS-00049

Documentable

False

Check Content

Verify the macOS system is configured to disable Bluetooth sharing with the following command:

/usr/bin/sudo -u "$CURRENT_USER" /usr/bin/defaults -currentHost read com.apple.Bluetooth PrefKeyServicesEnabled

If the result is not "0", this is a finding.

Check System

C-63258r941177_chk

Fix Reference

F-63166r941178_fix

Fix Text

Configure the macOS system to disable Bluetooth sharing with the following command:

/usr/bin/sudo -u "$CURRENT_USER" /usr/bin/defaults -currentHost write com.apple.Bluetooth PrefKeyServicesEnabled -bool false

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259520

Rule Version

APPL-14-002120

Rule Title

The macOS system must disable AppleID and Internet Account modifications.

Rule ID

SV-259520r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system must disable account modification.

Account modification includes adding additional or modifying internet accounts in Apple Mail, Calendar, Contacts, in the Internet Account System Setting Pane, or the AppleID System Setting Pane.

This prevents the addition of unauthorized accounts.

[IMPORTANT]

====

Some organizations may allow the use and configuration of the built-in Mail.app, Calendar.app, and Contacts.app for organizational communication. Information system security officers (ISSOs) may make the risk-based decision not to disable the Internet Accounts System Preference pane to avoid losing this functionality, but they are advised to first fully weigh the potential risks posed to their organization.

====

Documentable

False

Check Content

Verify the macOS system is configured to disable account modification with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowAccountModification').js

EOS

If the result is not "false", this is a finding.

Check System

C-63259r941180_chk

Fix Reference

F-63167r941181_fix

Fix Text

Configure the macOS system to disable account modification by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259521

Rule Version

APPL-14-002130

Rule Title

The macOS system must disable CD/DVD Sharing.

Rule ID

SV-259521r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

CD/DVD Sharing must be disabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable CD/DVD Sharing with the following command:

/usr/bin/pgrep -q ODSAgent; /bin/echo $?

If the result is not "1", this is a finding.

Check System

C-63260r941183_chk

Fix Reference

F-63168r941184_fix

Fix Text

Configure the macOS system to disable CD/DVD Sharing with the following command:

/bin/launchctl unload /System/Library/LaunchDaemons/com.apple.ODSAgent.plist

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259522

Rule Version

APPL-14-002140

Rule Title

The macOS system must disable content caching service.

Rule ID

SV-259522r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Content caching must be disabled.

Content caching is a macOS service that helps reduce internet data usage and speed up software installation on Mac computers. It is not recommended for devices furnished to employees to act as a caching server.

Documentable

False

Check Content

Verify the macOS system is configured to disable content caching service with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowContentCaching').js

EOS

If the result is not "false", this is a finding.

Check System

C-63261r941186_chk

Fix Reference

F-63169r941187_fix

Fix Text

Configure the macOS system to disable content caching service by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259523

Rule Version

APPL-14-002150

Rule Title

The macOS system must disable iCloud desktop and document folder synchronization.

Rule ID

SV-259523r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS system's ability to automatically synchronize a user's desktop and documents folder to their iCloud Drive must be disabled.

Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated file synchronization must be controlled by an organization approved service.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud desktop and document folder synchronization with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudDesktopAndDocuments').js

EOS

If the result is not "false", this is a finding.

Check System

C-63262r941189_chk

Fix Reference

F-63170r941190_fix

Fix Text

Configure the macOS system to disable iCloud desktop and document folder synchronization by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259524

Rule Version

APPL-14-002160

Rule Title

The macOS system must disable iCloud Game Center.

Rule ID

SV-259524r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

This works only with supervised devices (MDM) and allows Apple Game Center to be disabled. The rationale is Game Center is using Apple ID and will share data on AppleID-based services; therefore, Game Center must be disabled. This setting also prohibits the functionality of adding friends to Game Center.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Game Center with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowGameCenter').js

EOS

If the result is not "false", this is a finding.

Check System

C-63263r941192_chk

Fix Reference

F-63171r941193_fix

Fix Text

Configure the macOS system to disable iCloud Game Center by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259525

Rule Version

APPL-14-002170

Rule Title

The macOS system must disable iCloud Private Relay.

Rule ID

SV-259525r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Enterprise networks may be required to audit all network traffic by policy; therefore, iCloud Private Relay must be disabled.

Network administrators can also prevent the use of this feature by blocking DNS resolution of mask.icloud.com and mask-h2.icloud.com.

Documentable

False

Check Content

Verify the macOS system is configured to disable the iCloud Private Relay with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudPrivateRelay').js

EOS

If the result is not "false", this is a finding.

Check System

C-63264r941195_chk

Fix Reference

F-63172r941196_fix

Fix Text

Configure the macOS system to disable the iCloud Private Relay by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259526

Rule Version

APPL-14-002180

Rule Title

The macOS system must disable Find My service.

Rule ID

SV-259526r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The Find My service must be disabled.

A Mobile Device Management (MDM) solution must be used to carry out remote locking and wiping instead of Apple's Find My service.

Apple's Find My service uses a personal AppleID for authentication. Organizations should rely on MDM solutions, which have much more secure authentication requirements, to perform remote lock and remote wipe.

Documentable

False

Check Content

Verify the macOS system is configured to disable Find My service with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowFindMyDevice'))

let pref2 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowFindMyFriends'))

let pref3 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.icloud.managed')\

.objectForKey('DisableFMMiCloudSetting'))

if ( pref1 == false && pref2 == false && pref3 == true ) {

return("true")

} else {

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63265r941198_chk

Fix Reference

F-63173r941199_fix

Fix Text

Configure the macOS system to disable Find My service by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259527

Rule Version

APPL-14-002190

Rule Title

The macOS system must disable password autofill.

Rule ID

SV-259527r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Password Autofill must be disabled.

macOS allows users to save passwords and use the Password Autofill feature in Safari and compatible apps. To protect against malicious users gaining access to the system, this feature must be disabled to prevent users from being prompted to save passwords in applications.

Documentable

False

Check Content

Verify the macOS system is configured to disable password autofill with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowPasswordAutoFill').js

EOS

If the result is not "false", this is a finding.

Check System

C-63266r941201_chk

Fix Reference

F-63174r941202_fix

Fix Text

Configure the macOS system to disable password autofill by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259528

Rule Version

APPL-14-002200

Rule Title

The macOS system must disable personalized advertising.

Rule ID

SV-259528r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Ad tracking and targeted ads must be disabled.

The information system must be configured to provide only essential capabilities. Disabling ad tracking ensures that applications and advertisers are unable to track users' interests and deliver targeted advertisements.

Documentable

False

Check Content

Verify the macOS system is configured to disable personalized advertising with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowApplePersonalizedAdvertising').js

EOS

If the result is not "false", this is a finding.

Check System

C-63267r941204_chk

Fix Reference

F-63175r941205_fix

Fix Text

Configure the macOS system to disable personalized advertising by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259529

Rule Version

APPL-14-002210

Rule Title

The macOS system must disable sending Siri and Dictation information to Apple.

Rule ID

SV-259529r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The ability for Apple to store and review audio of Siri and Dictation interactions must be disabled.

The information system must be configured to provide only essential capabilities. Disabling the submission of Siri and Dictation information will mitigate the risk of unwanted data being sent to Apple.

Documentable

False

Check Content

Verify the macOS system is configured to disable sending Siri and Dictation information to Apple with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.assistant.support')\

.objectForKey('Siri Data Sharing Opt-In Status').js

EOS

If the result is not "2", this is a finding.

Check System

C-63268r941207_chk

Fix Reference

F-63176r941208_fix

Fix Text

Configure the macOS system to disable sending Siri and Dictation information to Apple by installing the "com.apple.assistant.support" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259530

Rule Version

APPL-14-002220

Rule Title

The macOS system must enforce on device dictation.

Rule ID

SV-259530r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Dictation must be restricted to on device only to prevent potential data exfiltration.

The information system must be configured to provide only essential capabilities.

Documentable

False

Check Content

For Intel-based systems, this is not applicable.

Verify the macOS system is configured to enforce on device dictation with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('forceOnDeviceOnlyDictation').js

EOS

If the result is not "true", this is a finding.

Check System

C-63269r941210_chk

Fix Reference

F-63177r941211_fix

Fix Text

Configure the macOS system to enforce on device dictation by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259531

Rule Version

APPL-14-002230

Rule Title

The macOS system must disable dictation.

Rule ID

SV-259531r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Dictation must be disabled on Intel-based Macs as the feature On Device Dictation is only available on Apple Silicon devices.

Documentable

False

Check Content

For Apple Silicon-based systems, this is not applicable.

Verify the macOS system is configured to disable dictation with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowDictation').js

EOS

If the result is not "false", this is a finding.

Check System

C-63270r941213_chk

Fix Reference

F-63178r941214_fix

Fix Text

Configure the macOS system to disable dictation by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259532

Rule Version

APPL-14-002240

Rule Title

The macOS system must disable Printer Sharing.

Rule ID

SV-259532r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Printer Sharing must be disabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable Printer Sharing with the following command:

/usr/sbin/cupsctl | /usr/bin/grep -c "_share_printers=0"

If the result is not "1", this is a finding.

Check System

C-63271r941216_chk

Fix Reference

F-63179r941217_fix

Fix Text

Configure the macOS system to disable Printer Sharing with the following commands:

/usr/sbin/cupsctl --no-share-printers

/usr/bin/lpstat -p | awk '{print $2}'| /usr/bin/xargs -I{} lpadmin -p {} -o printer-is-shared=false

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259533

Rule Version

APPL-14-002250

Rule Title

The macOS system must disable Remote Management.

Rule ID

SV-259533r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Remote Management must be disabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable Remote Management with the following command:

/usr/libexec/mdmclient QuerySecurityInfo | /usr/bin/grep -c "RemoteDesktopEnabled = 0"

If the result is not "1", this is a finding.

Check System

C-63272r941219_chk

Fix Reference

F-63180r941220_fix

Fix Text

Configure the macOS system to disable Remote Management with the following commands:

/System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/kickstart -deactivate -stop

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259534

Rule Version

APPL-14-002260

Rule Title

The macOS system must disable the Bluetooth system settings pane.

Rule ID

SV-259534r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The Bluetooth System Setting pane must be disabled to prevent access to the Bluetooth configuration.

Documentable

False

Check Content

Verify the macOS system is configured to disable the Bluetooth system settings pane with the following command:

/usr/bin/profiles show -output stdout-xml | /usr/bin/xmllint --xpath '//key[text()="DisabledSystemSettings"]/following-sibling::*[1]' - | /usr/bin/grep -c com.apple.BluetoothSettings

If the result is not "1", this is a finding.

Check System

C-63273r941222_chk

Fix Reference

F-63181r941223_fix

Fix Text

Configure the macOS system to disable the Bluetooth system settings pane by installing the "com.apple.systempreferences" configuration profiles.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259535

Rule Version

APPL-14-002270

Rule Title

The macOS system must disable the iCloud Freeform services.

Rule ID

SV-259535r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS built-in Freeform.app connection to Apple's iCloud service must be disabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable iCloud Freeform services with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowCloudFreeform').js

EOS

If the result is not "false", this is a finding.

Check System

C-63274r941225_chk

Fix Reference

F-63182r941226_fix

Fix Text

Configure the macOS system to disable iCloud Freeform services by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000403-GPOS-00182

Group ID

V-259536

Rule Version

APPL-14-003001

Rule Title

The macOS system must issue or obtain public key certificates from an approved service provider.

Rule ID

SV-259536r958868_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The organization must issue or obtain public key certificates from an organization-approved service provider and ensure only approved trust anchors are in the System Keychain.

Documentable

False

Check Content

Verify the macOS system is configured to issue or obtain public key certificates from an approved service provider with the following command:

/usr/bin/security dump-keychain /Library/Keychains/System.keychain | /usr/bin/awk -F'"' '/labl/ {print $4}'

If the result does not contain a list of approved certificate authorities, this is a finding.

Check System

C-63275r941228_chk

Fix Reference

F-63183r941229_fix

Fix Text

Configure the macOS system to issue or obtain public key certificates from an approved service provider by obtaining the approved certificates from the appropriate authority and install them to the System Keychain.

Identities

CCI-002470

Only allow the use of organization-defined certificate authorities for verification of the establishment of protected sessions.

800-53 Rev. 4 :: SC-23 (5)
800-53 Rev. 5 :: SC-23 (5)

Group Title

SRG-OS-000071-GPOS-00039

Group ID

V-259537

Rule Version

APPL-14-003007

Rule Title

The macOS system must require passwords contain a minimum of one numeric character.

Rule ID

SV-259537r1009594_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to require at least one numeric character be used when a password is created.

This rule enforces password complexity by requiring users to set passwords that are less vulnerable to malicious users.

Note: The guidance for password-based authentication in NIST 800-53 (Rev 5) and NIST 800-63B state that complexity rules should be organizationally defined. The values defined are based on common complexity values, but an organization may define its own password complexity rules.

Documentable

False

Check Content

Verify the macOS system is configured to require passwords contain a minimum of one numeric character with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath '//dict/key[text()="policyIdentifier"]/following-sibling::*[1]/text()' - | /usr/bin/grep "requireAlphanumeric" -c

If the result is not "1", this is a finding.

Check System

C-63276r941231_chk

Fix Reference

F-63184r941232_fix

Fix Text

Configure the macOS system to require passwords contain a minimum of one numeric character by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile.

Identities

CCI-000194

The information system enforces password complexity by the minimum number of numeric characters used.

800-53 :: IA-5 (1) (a)
800-53 Rev. 4 :: IA-5 (1) (a)
800-53A :: IA-5 (1).1 (v)

CCI-004064

For password-based authentication, allow user selection of long passwords and passphrases, including spaces and all printable characters.

800-53 Rev. 5 :: IA-5 (1) (f)

CCI-004066

For password-based authentication, enforce organization-defined composition and complexity rules.

800-53 Rev. 5 :: IA-5 (1) (h)

Group Title

SRG-OS-000076-GPOS-00044

Group ID

V-259538

Rule Version

APPL-14-003008

Rule Title

The macOS system must restrict maximum password lifetime to 60 days.

Rule ID

SV-259538r1009595_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to enforce a maximum password lifetime limit of at least 60 days.

This rule ensures that users are forced to change their passwords frequently enough to prevent malicious users from gaining and maintaining access to the system.

Documentable

False

Check Content

Verify the macOS system is configured to restrict maximum password lifetime to 60 days with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath '//dict/key[text()="policyAttributeExpiresEveryNDays"]/following-sibling::*[1]/text()' -

If the result is not "60" or less, this is a finding.

Check System

C-63277r941234_chk

Fix Reference

F-63185r941235_fix

Fix Text

Configure the macOS system to restrict maximum password lifetime to 60 days by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile.

Identities

CCI-000199

The information system enforces maximum password lifetime restrictions.

800-53 :: IA-5 (1) (d)
800-53 Rev. 4 :: IA-5 (1) (d)
800-53A :: IA-5 (1).1 (v)

CCI-004066

For password-based authentication, enforce organization-defined composition and complexity rules.

800-53 Rev. 5 :: IA-5 (1) (h)

Group Title

SRG-OS-000078-GPOS-00046

Group ID

V-259540

Rule Version

APPL-14-003010

Rule Title

The macOS system must require a minimum password length of 14 characters.

Rule ID

SV-259540r1009596_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to require a minimum of 14 characters be used when a password is created.

This rule enforces password complexity by requiring users to set passwords that are less vulnerable to malicious users.

Documentable

False

Check Content

Verify the macOS system is configured to enforce a minimum 14-character password length with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath 'boolean(//*[contains(text(),"policyAttributePassword matches '\''.{14,}'\''")])' -

If the result is not "true", this is a finding.

Check System

C-63279r941240_chk

Fix Reference

F-63187r941241_fix

Fix Text

Configure the macOS system to enforce a 14-character password length by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile.

Identities

CCI-000205

The information system enforces minimum password length.

800-53 :: IA-5 (1) (a)
800-53 Rev. 4 :: IA-5 (1) (a)
800-53A :: IA-5 (1).1 (i)

CCI-004064

For password-based authentication, allow user selection of long passwords and passphrases, including spaces and all printable characters.

800-53 Rev. 5 :: IA-5 (1) (f)

CCI-004066

For password-based authentication, enforce organization-defined composition and complexity rules.

800-53 Rev. 5 :: IA-5 (1) (h)

Group Title

SRG-OS-000266-GPOS-00101

Group ID

V-259541

Rule Version

APPL-14-003011

Rule Title

The macOS system must require passwords contain a minimum of one special character.

Rule ID

SV-259541r1009597_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to require at least one special character be used when a password is created.

Special characters are those characters that are not alphanumeric. Examples include: ~ ! @ # $ % ^ *.

This rule enforces password complexity by requiring users to set passwords that are less vulnerable to malicious users.

Documentable

False

Check Content

Verify the macOS system is configured to require passwords contain a minimum of one special character with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath 'boolean(//*[contains(text(),"policyAttributePassword matches '\''(.*[^a-zA-Z0-9].*){1,}'\''")])' -

If the result is not "true", this is a finding.

Check System

C-63280r941243_chk

Fix Reference

F-63188r941244_fix

Fix Text

Configure the macOS system to require passwords contain a minimum of one special character by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile.

Identities

CCI-001619

The information system enforces password complexity by the minimum number of special characters used.

800-53 :: IA-5 (1) (a)
800-53 Rev. 4 :: IA-5 (1) (a)
800-53A :: IA-5 (1).1 (v)

CCI-004064

For password-based authentication, allow user selection of long passwords and passphrases, including spaces and all printable characters.

800-53 Rev. 5 :: IA-5 (1) (f)

CCI-004066

For password-based authentication, enforce organization-defined composition and complexity rules.

800-53 Rev. 5 :: IA-5 (1) (h)

Group Title

SRG-OS-000079-GPOS-00047

Group ID

V-259542

Rule Version

APPL-14-003012

Rule Title

The macOS system must disable password hints.

Rule ID

SV-259542r958470_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Password hints must be disabled.

Password hints leak information about passwords that are currently in use and can lead to loss of confidentiality.

Documentable

False

Check Content

Verify the macOS system is configured to disable password hints with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow')\

.objectForKey('RetriesUntilHint').js

EOS

If the result is not "0", this is a finding.

Check System

C-63281r941246_chk

Fix Reference

F-63189r941247_fix

Fix Text

Configure the macOS system to disable password hints by installing the "com.apple.loginwindow" configuration profile.

Identities

CCI-000206

Obscure feedback of authentication information during the authentication process to protect the information from possible exploitation and use by unauthorized individuals.

800-53 :: IA-6
800-53 Rev. 4 :: IA-6
800-53 Rev. 5 :: IA-6
800-53A :: IA-6.1

Group Title

SRG-OS-000480-GPOS-00227

Group ID

V-259543

Rule Version

APPL-14-003013

Rule Title

The macOS system must enable firmware password.

Rule ID

SV-259543r991589_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

A firmware password must be enabled and set.

Single user mode, recovery mode, the Startup Manager, and several other tools are available on macOS by holding the "Option" key down during startup. Setting a firmware password restricts access to these tools.

To set a firmware passcode use the following command:

[source,bash]

----

/usr/sbin/firmwarepasswd -setpasswd

----

Note: If firmware password or passcode is forgotten, the only way to reset the forgotten password is through the use of a machine specific binary generated and provided by Apple. Schedule a support call and provide proof of purchase before the firmware binary will be generated.

Note: Firmware passwords are not supported on Apple Silicon devices. This rule is only applicable to Intel devices.

Documentable

False

Check Content

For Apple Silicon systems, this is not applicable.

Verify the macOS system is configured with a firmware password with the following command:

/usr/sbin/firmwarepasswd -check | /usr/bin/grep -c "Password Enabled: Yes"

If the result is not "1", this is a finding.

Check System

C-63282r941249_chk

Fix Reference

F-63190r941250_fix

Fix Text

Configure the macOS system with a firmware password with the following command:

/usr/sbin/firmwarepasswd -setpasswd

Note: If firmware password or passcode is forgotten, the only way to reset the forgotten password is through a machine-specific binary generated and provided by Apple. Users must schedule a support call and provide proof of purchase before the firmware binary will be generated.

Identities

CCI-000366

Implement the security configuration settings.

800-53 :: CM-6 b
800-53 Rev. 4 :: CM-6 b
800-53 Rev. 5 :: CM-6 b
800-53A :: CM-6.1 (iv)

Group Title

SRG-OS-000079-GPOS-00047

Group ID

V-259544

Rule Version

APPL-14-003014

Rule Title

The macOS system must remove password hints from user accounts.

Rule ID

SV-259544r958470_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

User accounts must not contain password hints. Password hints leak information about passwords that are currently in use and can lead to loss of confidentiality.

Documentable

False

Check Content

Verify the macOS system is configured to remove password hints from user accounts with the following command:

/usr/bin/dscl . -list /Users hint | /usr/bin/awk '{print $2}' | /usr/bin/wc -l | /usr/bin/xargs

If the result is not "0", this is a finding.

Check System

C-63283r941252_chk

Fix Reference

F-63191r941253_fix

Fix Text

Configure the macOS system to remove password hints from user accounts with the following command:

for u in $(/usr/bin/dscl . -list /Users UniqueID | /usr/bin/awk '$2 > 500 {print $1}'); do

/usr/bin/dscl . -delete /Users/$u hint

done

Identities

CCI-000206

Obscure feedback of authentication information during the authentication process to protect the information from possible exploitation and use by unauthorized individuals.

800-53 :: IA-6
800-53 Rev. 4 :: IA-6
800-53 Rev. 5 :: IA-6
800-53A :: IA-6.1

Group Title

SRG-OS-000067-GPOS-00035

Group ID

V-259545

Rule Version

APPL-14-003020

Rule Title

The macOS system must enforce smart card authentication.

Rule ID

SV-259545r1009598_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Smart card authentication must be enforced.

The use of smart card credentials facilitates standardization and reduces the risk of unauthorized access.

When enforceSmartCard is set to "true", the smart card must be used for logon, authorization, and unlocking the screen saver.

CAUTION: enforceSmartCard will apply to the whole system. No users will be able to log on with their password unless the profile is removed or a user is exempt from smart card enforcement.

Note: enforceSmartcard requires allowSmartcard to be set to true in order to work.

Satisfies: SRG-OS-000067-GPOS-00035,SRG-OS-000105-GPOS-00052,SRG-OS-000106-GPOS-00053,SRG-OS-000107-GPOS-00054,SRG-OS-000108-GPOS-00055,SRG-OS-000112-GPOS-00057,SRG-OS-000375-GPOS-00160,SRG-OS-000376-GPOS-00161

Documentable

False

Check Content

Verify the macOS system is configured to enforce multifactor authentication with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.security.smartcard')\

.objectForKey('enforceSmartCard').js

EOS

If the result is not "true", this is a finding.

Check System

C-63284r941255_chk

Fix Reference

F-63192r941256_fix

Fix Text

Configure the macOS system to enforce multifactor authentication by installing the "com.apple.security.smartcard" configuration profile.

Note: To ensure continued access to the operating system, consult the supplemental guidance provided with the STIG before applying the configuration profile.

Identities

CCI-000186

For public key-based authentication, enforce authorized access to the corresponding private key.

800-53 :: IA-5 (2)
800-53 Rev. 4 :: IA-5 (2) (b)
800-53 Rev. 5 :: IA-5 (2) (a) (1)
800-53A :: IA-5 (2).1

CCI-000765

Implement multifactor authentication for network access to privileged accounts.

800-53 :: IA-2 (1)
800-53 Rev. 4 :: IA-2 (1)
800-53 Rev. 5 :: IA-2 (1)
800-53A :: IA-2 (1).1

CCI-000766

Implement multifactor authentication for network access to non-privileged accounts.

800-53 :: IA-2 (2)
800-53 Rev. 4 :: IA-2 (2)
800-53 Rev. 5 :: IA-2 (2)
800-53A :: IA-2 (2).1

CCI-000767

The information system implements multifactor authentication for local access to privileged accounts.

800-53 :: IA-2 (3)
800-53 Rev. 4 :: IA-2 (3)
800-53A :: IA-2 (3).1

CCI-000768

The information system implements multifactor authentication for local access to non-privileged accounts.

800-53 :: IA-2 (4)
800-53 Rev. 4 :: IA-2 (4)
800-53A :: IA-2 (4).1

CCI-001941

Implement replay-resistant authentication mechanisms for access to privileged accounts and/or non-privileged accounts.

800-53 Rev. 4 :: IA-2 (8)
800-53 Rev. 5 :: IA-2 (8)

CCI-001948

The information system implements multifactor authentication for remote access to privileged accounts such that one of the factors is provided by a device separate from the system gaining access.

800-53 Rev. 4 :: IA-2 (11)

CCI-001953

Accepts Personal Identity Verification-compliant credentials.

800-53 Rev. 4 :: IA-2 (12)
800-53 Rev. 5 :: IA-2 (12)

CCI-004046

Implement multi-factor authentication for local; network; and/or remote access to privileged accounts; and/or non-privileged accounts such that one of the factors is provided by a device separate from the system gaining access.

800-53 Rev. 5 :: IA-2 (6) (a)

Group Title

SRG-OS-000068-GPOS-00036

Group ID

V-259546

Rule Version

APPL-14-003030

Rule Title

The macOS system must allow smart card authentication.

Rule ID

SV-259546r1009599_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Smart card authentication must be allowed.

The use of smart card credentials facilitates standardization and reduces the risk of unauthorized access.

When enabled, the smart card can be used for logon, authorization, and screen saver unlocking.

Satisfies: SRG-OS-000068-GPOS-00036,SRG-OS-000105-GPOS-00052,SRG-OS-000106-GPOS-00053,SRG-OS-000107-GPOS-00054,SRG-OS-000108-GPOS-00055,SRG-OS-000112-GPOS-00057,SRG-OS-000376-GPOS-00161

Documentable

False

Check Content

Verify the macOS system is configured to allow smart card authentication with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.security.smartcard')\

.objectForKey('allowSmartCard').js

EOS

If the result is not "true", this is a finding.

Check System

C-63285r941258_chk

Fix Reference

F-63193r941259_fix

Fix Text

Configure the macOS system to enforce multifactor authentication by installing the "com.apple.security.smartcard" configuration profile.

Note: To ensure continued access to the operating system, consult the supplemental guidance provided with the STIG before applying the configuration profile.

Identities

CCI-000187

For public key-based authentication, map the authenticated identity to the account of the individual or group.

800-53 :: IA-5 (2)
800-53 Rev. 4 :: IA-5 (2) (c)
800-53 Rev. 5 :: IA-5 (2) (a) (2)
800-53A :: IA-5 (2).1

CCI-000765

Implement multifactor authentication for network access to privileged accounts.

800-53 :: IA-2 (1)
800-53 Rev. 4 :: IA-2 (1)
800-53 Rev. 5 :: IA-2 (1)
800-53A :: IA-2 (1).1

CCI-000766

Implement multifactor authentication for network access to non-privileged accounts.

800-53 :: IA-2 (2)
800-53 Rev. 4 :: IA-2 (2)
800-53 Rev. 5 :: IA-2 (2)
800-53A :: IA-2 (2).1

CCI-000767

The information system implements multifactor authentication for local access to privileged accounts.

800-53 :: IA-2 (3)
800-53 Rev. 4 :: IA-2 (3)
800-53A :: IA-2 (3).1

CCI-000768

The information system implements multifactor authentication for local access to non-privileged accounts.

800-53 :: IA-2 (4)
800-53 Rev. 4 :: IA-2 (4)
800-53A :: IA-2 (4).1

CCI-001941

Implement replay-resistant authentication mechanisms for access to privileged accounts and/or non-privileged accounts.

800-53 Rev. 4 :: IA-2 (8)
800-53 Rev. 5 :: IA-2 (8)

CCI-001953

Accepts Personal Identity Verification-compliant credentials.

800-53 Rev. 4 :: IA-2 (12)
800-53 Rev. 5 :: IA-2 (12)

Group Title

SRG-OS-000105-GPOS-00052

Group ID

V-259547

Rule Version

APPL-14-003050

Rule Title

The macOS system must enforce multifactor authentication for logon.

Rule ID

SV-259547r1009600_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system must be configured to enforce multifactor authentication.

All users must go through multifactor authentication to prevent unauthenticated access and potential compromise to the system.

IMPORTANT: Modification of Pluggable Authentication Modules (PAM) now requires user authorization or use of a Privacy Preferences Policy Control (PPPC) profile from MDM that authorizes modifying system administrator files or full disk access.

Note: /etc/pam.d/login will be automatically modified to its original state following any update or major upgrade to the operating system.

Satisfies: SRG-OS-000105-GPOS-00052,SRG-OS-000106-GPOS-00053,SRG-OS-000107-GPOS-00054,SRG-OS-000108-GPOS-00055,SRG-OS-000112-GPOS-00057

Documentable

False

Check Content

Verify the macOS system is configured to enforce multifactor authentication for login with the following command:

/usr/bin/grep -Ec '^(auth\s+sufficient\s+pam_smartcard.so|auth\s+required\s+pam_deny.so)' /etc/pam.d/login

If the result is not "2", this is a finding.

Check System

C-63286r941261_chk

Fix Reference

F-63194r941262_fix

Fix Text

Configure the macOS system to enforce multifactor authentication for login with the following commands:

/bin/cat > /etc/pam.d/login << LOGIN_END

# login: auth account password session

auth sufficient pam_smartcard.so

auth optional pam_krb5.so use_kcminit

auth optional pam_ntlm.so try_first_pass

auth optional pam_mount.so try_first_pass

auth required pam_opendirectory.so try_first_pass

auth required pam_deny.so

account required pam_nologin.so

account required pam_opendirectory.so

password required pam_opendirectory.so

session required pam_launchd.so

session required pam_uwtmp.so

session optional pam_mount.so

LOGIN_END

/bin/chmod 644 /etc/pam.d/login

/usr/sbin/chown root:wheel /etc/pam.d/login

Identities

CCI-000765

Implement multifactor authentication for network access to privileged accounts.

800-53 :: IA-2 (1)
800-53 Rev. 4 :: IA-2 (1)
800-53 Rev. 5 :: IA-2 (1)
800-53A :: IA-2 (1).1

CCI-000766

Implement multifactor authentication for network access to non-privileged accounts.

800-53 :: IA-2 (2)
800-53 Rev. 4 :: IA-2 (2)
800-53 Rev. 5 :: IA-2 (2)
800-53A :: IA-2 (2).1

CCI-000767

The information system implements multifactor authentication for local access to privileged accounts.

800-53 :: IA-2 (3)
800-53 Rev. 4 :: IA-2 (3)
800-53A :: IA-2 (3).1

CCI-000768

The information system implements multifactor authentication for local access to non-privileged accounts.

800-53 :: IA-2 (4)
800-53 Rev. 4 :: IA-2 (4)
800-53A :: IA-2 (4).1

CCI-001941

Implement replay-resistant authentication mechanisms for access to privileged accounts and/or non-privileged accounts.

800-53 Rev. 4 :: IA-2 (8)
800-53 Rev. 5 :: IA-2 (8)

CCI-004047

Implement multi-factor authentication for local; network; and/or remote access to privileged accounts; and/or non-privileged accounts such that the device meets organization-defined strength of mechanism requirements.

800-53 Rev. 5 :: IA-2 (6) (b)

Group Title

SRG-OS-000105-GPOS-00052

Group ID

V-259548

Rule Version

APPL-14-003051

Rule Title

The macOS system must enforce multifactor authentication for the su command.

Rule ID

SV-259548r1009601_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system must be configured such that, when the su command is used, multifactor authentication is enforced.

All users must go through multifactor authentication to prevent unauthenticated access and potential compromise to the system.

Note: /etc/pam.d/su will be automatically modified to its original state following any update or major upgrade to the operating system.

Satisfies: SRG-OS-000105-GPOS-00052,SRG-OS-000106-GPOS-00053,SRG-OS-000107-GPOS-00054,SRG-OS-000108-GPOS-00055,SRG-OS-000112-GPOS-00057

Documentable

False

Check Content

Verify the macOS system is configured to enforce multifactor authentication for the su command with the following command:

/usr/bin/grep -Ec '^(auth\s+sufficient\s+pam_smartcard.so|auth\s+required\s+pam_rootok.so)' /etc/pam.d/su

If the result is not "2", this is a finding.

Check System

C-63287r941264_chk

Fix Reference

F-63195r941265_fix

Fix Text

Configure the macOS system to enforce multifactor authentication for the su command with the following commands:

/bin/cat > /etc/pam.d/su << SU_END

# su: auth account password session

auth sufficient pam_smartcard.so

auth required pam_rootok.so

auth required pam_group.so no_warn group=admin,wheel ruser root_only fail_safe

account required pam_permit.so

account required pam_opendirectory.so no_check_shell

password required pam_opendirectory.so

session required pam_launchd.so

SU_END

# Fix new file ownership and permissions

/bin/chmod 644 /etc/pam.d/su

/usr/sbin/chown root:wheel /etc/pam.d/su

Identities

CCI-000765

Implement multifactor authentication for network access to privileged accounts.

800-53 :: IA-2 (1)
800-53 Rev. 4 :: IA-2 (1)
800-53 Rev. 5 :: IA-2 (1)
800-53A :: IA-2 (1).1

CCI-000766

Implement multifactor authentication for network access to non-privileged accounts.

800-53 :: IA-2 (2)
800-53 Rev. 4 :: IA-2 (2)
800-53 Rev. 5 :: IA-2 (2)
800-53A :: IA-2 (2).1

CCI-000767

The information system implements multifactor authentication for local access to privileged accounts.

800-53 :: IA-2 (3)
800-53 Rev. 4 :: IA-2 (3)
800-53A :: IA-2 (3).1

CCI-000768

The information system implements multifactor authentication for local access to non-privileged accounts.

800-53 :: IA-2 (4)
800-53 Rev. 4 :: IA-2 (4)
800-53A :: IA-2 (4).1

CCI-001941

Implement replay-resistant authentication mechanisms for access to privileged accounts and/or non-privileged accounts.

800-53 Rev. 4 :: IA-2 (8)
800-53 Rev. 5 :: IA-2 (8)

CCI-004047

800-53 Rev. 5 :: IA-2 (6) (b)

Group Title

SRG-OS-000105-GPOS-00052

Group ID

V-259549

Rule Version

APPL-14-003052

Rule Title

The macOS system must enforce multifactor authentication for privilege escalation through the sudo command.

Rule ID

SV-259549r1009602_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system must be configured to enforce multifactor authentication when the sudo command is used to elevate privilege.

All users must go through multifactor authentication to prevent unauthenticated access and potential compromise to the system.

IMPORTANT: Modification of Pluggable Authentication Modules (PAM) now requires user authorization, or use of a Privacy Preferences Policy Control (PPPC) profile from MDM that authorizes modifying system administrator files or full disk access.

Note: /etc/pam.d/sudo will be automatically modified to its original state following any update or major upgrade to the operating system.

Satisfies: SRG-OS-000105-GPOS-00052,SRG-OS-000106-GPOS-00053,SRG-OS-000107-GPOS-00054,SRG-OS-000108-GPOS-00055,SRG-OS-000112-GPOS-00057

Documentable

False

Check Content

Verify the macOS system is configured to enforce multifactor authentication for privilege escalation through the sudo command with the following command:

/usr/bin/grep -Ec '^(auth\s+sufficient\s+pam_smartcard.so|auth\s+required\s+pam_deny.so)' /etc/pam.d/sudo

If the result is not "2", this is a finding.

Check System

C-63288r941267_chk

Fix Reference

F-63196r941268_fix

Fix Text

Configure the macOS system to enforce multifactor authentication for privilege escalation through the sudo command with the following commands:

/bin/cat > /etc/pam.d/sudo << SUDO_END

# sudo: auth account password session

auth sufficient pam_smartcard.so

auth required pam_opendirectory.so

auth required pam_deny.so

account required pam_permit.so

password required pam_deny.so

session required pam_permit.so

SUDO_END

/bin/chmod 444 /etc/pam.d/sudo

/usr/sbin/chown root:wheel /etc/pam.d/sudo

Identities

CCI-000765

Implement multifactor authentication for network access to privileged accounts.

800-53 :: IA-2 (1)
800-53 Rev. 4 :: IA-2 (1)
800-53 Rev. 5 :: IA-2 (1)
800-53A :: IA-2 (1).1

CCI-000766

Implement multifactor authentication for network access to non-privileged accounts.

800-53 :: IA-2 (2)
800-53 Rev. 4 :: IA-2 (2)
800-53 Rev. 5 :: IA-2 (2)
800-53A :: IA-2 (2).1

CCI-000767

The information system implements multifactor authentication for local access to privileged accounts.

800-53 :: IA-2 (3)
800-53 Rev. 4 :: IA-2 (3)
800-53A :: IA-2 (3).1

CCI-000768

The information system implements multifactor authentication for local access to non-privileged accounts.

800-53 :: IA-2 (4)
800-53 Rev. 4 :: IA-2 (4)
800-53A :: IA-2 (4).1

CCI-001941

Implement replay-resistant authentication mechanisms for access to privileged accounts and/or non-privileged accounts.

800-53 Rev. 4 :: IA-2 (8)
800-53 Rev. 5 :: IA-2 (8)

CCI-004047

800-53 Rev. 5 :: IA-2 (6) (b)

Group Title

SRG-OS-000069-GPOS-00037

Group ID

V-259550

Rule Version

APPL-14-003060

Rule Title

The macOS system must require passwords contain a minimum of one lowercase character and one uppercase character.

Rule ID

SV-259550r1009603_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS be configured to require at least one lowercase character and one uppercase character be used when a password is created.

This rule enforces password complexity by requiring users to set passwords that are less vulnerable to malicious users.

Note: The configuration profile generated must be installed from an MDM server.

Satisfies: SRG-OS-000069-GPOS-00037,SRG-OS-000070-GPOS-00038

Documentable

False

Check Content

Verify the macOS system is configured to require passwords contain a minimum of one lowercase character and one uppercase character with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath 'boolean(//*[contains(text(),"policyAttributePassword matches '\''.*[A-Z]{1,}[a-z]{1,}.*'\''")])' -

If the result is not "true", this is a finding.

Check System

C-63289r941270_chk

Fix Reference

F-63197r941271_fix

Fix Text

Configure the macOS system to require at least one lowercase character and one uppercase character in password complexity by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile.

Identities

CCI-000192

The information system enforces password complexity by the minimum number of upper case characters used.

800-53 :: IA-5 (1) (a)
800-53 Rev. 4 :: IA-5 (1) (a)
800-53A :: IA-5 (1).1 (v)

CCI-000193

The information system enforces password complexity by the minimum number of lower case characters used.

800-53 :: IA-5 (1) (a)
800-53 Rev. 4 :: IA-5 (1) (a)
800-53A :: IA-5 (1).1 (v)

CCI-004064

For password-based authentication, allow user selection of long passwords and passphrases, including spaces and all printable characters.

800-53 Rev. 5 :: IA-5 (1) (f)

CCI-004066

For password-based authentication, enforce organization-defined composition and complexity rules.

800-53 Rev. 5 :: IA-5 (1) (h)

Group Title

SRG-OS-000075-GPOS-00043

Group ID

V-259551

Rule Version

APPL-14-003070

Rule Title

The macOS system must set minimum password lifetime to 24 hours.

Rule ID

SV-259551r1009604_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to enforce a minimum password lifetime limit of 24 hours.

This rule discourages users from cycling through their previous passwords to get back to a preferred one.

Documentable

False

Check Content

Verify the macOS system is configured to set minimum password lifetime to 24 hours with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath '//dict/key[text()="policyAttributeMinimumLifetimeHours"]/following-sibling::integer[1]/text()' - | /usr/bin/awk '{ if ($1 >= 24 ) {print "yes"} else {print "no"}}'

If the result is not "yes", this is a finding.

Check System

C-63290r941273_chk

Fix Reference

F-63198r941274_fix

Fix Text

Configure the macOS system to set minimum password lifetime to 24 hours.

This setting may be enforced using local policy or by a directory service.

To set local policy to require a minimum password lifetime, edit the current password policy to contain the following <dict> within the "policyCategoryPasswordContent":

[source,xml]

----

<dict>

<key>policyContent</key>

<string>policyAttributeLastPasswordChangeTime < policyAttributeCurrentTime - (policyAttributeMinimumLifetimeHours * 60 * 60)</string>

<key>policyIdentifier</key>

<string>Minimum Password Lifetime</string>

<key>policyParameters</key>

<dict>

<key>policyAttributeMinimumLifetimeHours</key>

</dict>

----

After saving the file and exiting to the command prompt, run the following command to load the new policy file, substituting the path to the file in place of "$pwpolicy_file".

[source,bash]

----

/usr/bin/pwpolicy setaccountpolicies $pwpolicy_file

----

Note: Refer to the password policy supplemental on more information on how to implement password policies on macOS.

Identities

CCI-000198

The information system enforces minimum password lifetime restrictions.

800-53 :: IA-5 (1) (d)
800-53 Rev. 4 :: IA-5 (1) (d)
800-53A :: IA-5 (1).1 (v)

CCI-004066

For password-based authentication, enforce organization-defined composition and complexity rules.

800-53 Rev. 5 :: IA-5 (1) (h)

Group Title

SRG-OS-000118-GPOS-00060

Group ID

V-259552

Rule Version

APPL-14-003080

Rule Title

The macOS system must disable accounts after 35 days of inactivity.

Rule ID

SV-259552r1009605_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS must be configured to disable accounts after 35 days of inactivity.

This rule prevents malicious users from making use of unused accounts to gain access to the system while avoiding detection.

Documentable

False

Check Content

Verify the macOS system is configured to disable accounts after 35 days of inactivity with the following command:

/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath '//dict/key[text()="policyAttributeInactiveDays"]/following-sibling::integer[1]/text()' -

If the result is not "35", this is a finding.

Check System

C-63291r941276_chk

Fix Reference

F-63199r941277_fix

Fix Text

Configure the macOS system to disable accounts after 35 days of inactivity with the following command:

This setting may be enforced using local policy or by a directory service.

To set local policy to disable an inactive user after 35 days, edit the current password policy to contain the following <dict> within the "policyCategoryAuthentication":

[source,xml]

----

<dict>

<key>policyContent</key>

<string>policyAttributeLastAuthenticationTime > policyAttributeCurrentTime - (policyAttributeInactiveDays * 24 * 60 * 60)</string>

<key>policyIdentifier</key>

<string>Inactive Account</string>

<key>policyParameters</key>

<dict>

<key>policyAttributeInactiveDays</key>

</dict>

----

After saving the file and exiting to the command prompt, run the following command to load the new policy file, substituting the path to the file in place of "$pwpolicy_file".

[source,bash]

----

/usr/bin/pwpolicy setaccountpolicies $pwpolicy_file

----

Note: Refer to the password policy supplemental on more information on how to implement password policies on macOS.

Identities

CCI-000795

The organization manages information system identifiers by disabling the identifier after an organization-defined time period of inactivity.

800-53 :: IA-4 e
800-53 Rev. 4 :: IA-4 e
800-53A :: IA-4.1 (iii)

CCI-003627

Disable accounts when the accounts have expired.

800-53 Rev. 5 :: AC-2 (3) (a)

CCI-003628

Disable accounts when the accounts are no longer associated to a user.

800-53 Rev. 5 :: AC-2 (3) (b)

Group Title

SRG-OS-000205-GPOS-00083

Group ID

V-259553

Rule Version

APPL-14-004001

Rule Title

The macOS system must configure Apple System Log files to be owned by root and group to wheel.

Rule ID

SV-259553r958564_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The Apple System Logs (ASL) must be owned by root.

ASL logs contain sensitive data about the system and users. If ASL log files are set to only be readable and writable by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000205-GPOS-00083,SRG-OS-000206-GPOS-00084

Documentable

False

Check Content

Verify the macOS system is configured with Apple System Log files owned by root and group to wheel with the following command:

/usr/bin/stat -f '%Su:%Sg:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | /usr/bin/awk '{ print $2 }') 2> /dev/null | /usr/bin/awk '!/^root:wheel:/{print $1}' | /usr/bin/wc -l | /usr/bin/tr -d ' '

If the result is not "0", this is a finding.

Check System

C-63292r941279_chk

Fix Reference

F-63200r941280_fix

Fix Text

Configure the macOS system with Apple System Log files owned by root and group to wheel with the following command:

/usr/sbin/chown root:wheel $(/usr/bin/stat -f '%Su:%Sg:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | /usr/bin/awk '{ print $2 }') 2> /dev/null | /usr/bin/awk '!/^root:wheel:/{print $1}' | /usr/bin/awk -F":" '!/^root:wheel:/{print $3}')

Identities

CCI-001312

Generates error messages that provide information necessary for corrective actions without revealing information that could be exploited.

800-53 :: SI-11 b
800-53 Rev. 4 :: SI-11 a
800-53 Rev. 5 :: SI-11 a
800-53A :: SI-11.1 (iii)

CCI-001314

Reveal error messages only to organization-defined personnel or roles.

800-53 :: SI-11 c
800-53 Rev. 4 :: SI-11 b
800-53 Rev. 5 :: SI-11 b
800-53A :: SI-11.1 (iv)

Group Title

SRG-OS-000205-GPOS-00083

Group ID

V-259554

Rule Version

APPL-14-004002

Rule Title

The macOS system must configure Apple System Log files to mode 640 or less permissive.

Rule ID

SV-259554r958564_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The Apple System Logs (ASL) must be configured to be writable by root and readable only by the root user and group wheel. To achieve this, ASL log files must be configured to mode 640 permissive or less; thereby preventing normal users from reading, modifying, or deleting audit logs. System logs frequently contain sensitive information that could be used by an attacker. Setting the correct permissions mitigates this risk.

Satisfies: SRG-OS-000205-GPOS-00083,SRG-OS-000206-GPOS-00084

Documentable

False

Check Content

Verify the macOS system is configured with Apple System Log files to mode 640 or less permissive with the following command:

/usr/bin/stat -f '%A:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | /usr/bin/awk '{ print $2 }') 2> /dev/null | /usr/bin/awk '!/640/{print $1}' | /usr/bin/wc -l | /usr/bin/tr -d ' '

If the result is not "0", this is a finding.

Check System

C-63293r941282_chk

Fix Reference

F-63201r941283_fix

Fix Text

Configure the macOS system with Apple System Log files to mode 640 with the following command:

/bin/chmod 640 $(/usr/bin/stat -f '%A:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | /usr/bin/awk '{ print $2 }') 2> /dev/null | /usr/bin/awk -F":" '!/640/{print $2}')

Identities

CCI-001312

Generates error messages that provide information necessary for corrective actions without revealing information that could be exploited.

800-53 :: SI-11 b
800-53 Rev. 4 :: SI-11 a
800-53 Rev. 5 :: SI-11 a
800-53A :: SI-11.1 (iii)

CCI-001314

Reveal error messages only to organization-defined personnel or roles.

800-53 :: SI-11 c
800-53 Rev. 4 :: SI-11 b
800-53 Rev. 5 :: SI-11 b
800-53A :: SI-11.1 (iv)

Group Title

SRG-OS-000373-GPOS-00156

Group ID

V-259555

Rule Version

APPL-14-004022

Rule Title

The macOS system must require users to reauthenticate for privilege escalation when using the "sudo" command.

Rule ID

SV-259555r1009606_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The file /etc/sudoers must include a timestamp_timout of 0.

Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operating systems provide the capability to escalate a functional capability or change user authenticators, it is critical the user reauthenticate.

Satisfies: SRG-OS-000373-GPOS-00156,SRG-OS-000373-GPOS-00157,SRG-OS-000373-GPOS-00158

Documentable

False

Check Content

Verify the macOS system requires reauthentication when using the "sudo" command to elevate privileges with the following command:

/usr/bin/sudo /usr/bin/sudo -V | /usr/bin/grep -c "Authentication timestamp timeout: 0.0 minutes"

If the result is not "1", this is a finding.

Check System

C-63294r941285_chk

Fix Reference

F-63202r941286_fix

Fix Text

Configure the macOS system to require reauthentication when using "sudo" with the following command:

/usr/bin/find /etc/sudoers* -type f -exec sed -i '' '/timestamp_timeout/d' '{}' \;

/bin/echo "Defaults timestamp_timeout=0" >> /etc/sudoers.d/mscp

Identities

CCI-002038

The organization requires users to reauthenticate upon organization-defined circumstances or situations requiring reauthentication.

800-53 Rev. 4 :: IA-11

CCI-004895

Permit users to invoke the trusted communications path for communications between the user and the organization-defined security functions, including at a minimum, authentication and re-authentication.

800-53 Rev. 5 :: SC-11 b

Group Title

SRG-OS-000205-GPOS-00083

Group ID

V-259556

Rule Version

APPL-14-004030

Rule Title

The macOS system must configure system log files to be owned by root and group to wheel.

Rule ID

SV-259556r958564_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system log files must be owned by root.

System logs contain sensitive data about the system and users. If log files are set to only be readable and writable by system administrators, the risk is mitigated.

Satisfies: SRG-OS-000205-GPOS-00083,SRG-OS-000206-GPOS-00084

Documentable

False

Check Content

Verify the macOS system is configured with system log files owned by root and group to wheel with the following command:

/usr/bin/stat -f '%Su:%Sg:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | /usr/bin/awk '{ print $1 }') 2> /dev/null | /usr/bin/awk '!/^root:wheel:/{print $1}' | /usr/bin/wc -l | /usr/bin/tr -d ' '

If the result is not "0", this is a finding.

Check System

C-63295r941288_chk

Fix Reference

F-63203r941289_fix

Fix Text

Configure the macOS system with system log files owned by root and group to wheel with the following command:

/usr/sbin/chown root:wheel $(/usr/bin/stat -f '%Su:%Sg:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | /usr/bin/awk '{ print $1 }') 2> /dev/null | /usr/bin/awk -F":" '!/^root:wheel:/{print $3}')

Identities

CCI-001312

Generates error messages that provide information necessary for corrective actions without revealing information that could be exploited.

800-53 :: SI-11 b
800-53 Rev. 4 :: SI-11 a
800-53 Rev. 5 :: SI-11 a
800-53A :: SI-11.1 (iii)

CCI-001314

Reveal error messages only to organization-defined personnel or roles.

800-53 :: SI-11 c
800-53 Rev. 4 :: SI-11 b
800-53 Rev. 5 :: SI-11 b
800-53A :: SI-11.1 (iv)

Group Title

SRG-OS-000205-GPOS-00083

Group ID

V-259557

Rule Version

APPL-14-004040

Rule Title

The macOS system must configure system log files to mode 640 or less permissive.

Rule ID

SV-259557r958564_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The system logs must be configured to be writable by root and readable only by the root user and group wheel. To achieve this, system log files must be configured to mode 640 permissive or less; thereby preventing normal users from reading, modifying, or deleting audit logs. System logs frequently contain sensitive information that could be used by an attacker. Setting the correct permissions mitigates this risk.

Satisfies: SRG-OS-000205-GPOS-00083,SRG-OS-000206-GPOS-00084

Documentable

False

Check Content

Verify the macOS system is configured with system log files set to mode 640 or less permissive with the following command:

/usr/bin/stat -f '%A:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | /usr/bin/awk '{ print $1 }') 2> /dev/null | /usr/bin/awk '!/640/{print $1}' | /usr/bin/wc -l | /usr/bin/tr -d ' '

If the result is not "0", this is a finding.

Check System

C-63296r941291_chk

Fix Reference

F-63204r941292_fix

Fix Text

Configure the macOS system with system log files set to mode 640 or less permissive with the following command:

/bin/chmod 640 $(/usr/bin/stat -f '%A:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | /usr/bin/awk '{ print $1 }') 2> /dev/null | /usr/bin/awk '!/640/{print $1}' | awk -F":" '!/640/{print $2}')

Identities

CCI-001312

Generates error messages that provide information necessary for corrective actions without revealing information that could be exploited.

800-53 :: SI-11 b
800-53 Rev. 4 :: SI-11 a
800-53 Rev. 5 :: SI-11 a
800-53A :: SI-11.1 (iii)

CCI-001314

Reveal error messages only to organization-defined personnel or roles.

800-53 :: SI-11 c
800-53 Rev. 4 :: SI-11 b
800-53 Rev. 5 :: SI-11 b
800-53A :: SI-11.1 (iv)

Group Title

SRG-OS-000373-GPOS-00156

Group ID

V-259559

Rule Version

APPL-14-004060

Rule Title

The macOS system must configure sudoers timestamp type.

Rule ID

SV-259559r1009607_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The file /etc/sudoers must be configured to not include a timestamp_type of global or ppid and be configured for timestamp record types of tty.

This rule ensures that the "sudo" command will prompt for the administrator's password at least once in each newly opened terminal window. This prevents a malicious user from taking advantage of an unlocked computer or an abandoned logon session by bypassing the normal password prompt requirement.

Satisfies: SRG-OS-000373-GPOS-00156,SRG-OS-000373-GPOS-00157

Documentable

False

Check Content

Verify the macOS system is configured with sudoers timestamp type with the following command:

/usr/bin/sudo /usr/bin/sudo -V | /usr/bin/awk -F": " '/Type of authentication timestamp record/{print $2}'

If the result is not "tty", this is a finding.

Check System

C-63298r941297_chk

Fix Reference

F-63206r941298_fix

Fix Text

Configure the macOS system with sudoers timestamp type with the following command:

/usr/bin/find /etc/sudoers* -type f -exec sed -i '' '/timestamp_type/d; /!tty_tickets/d' '{}' \;

Identities

CCI-002038

The organization requires users to reauthenticate upon organization-defined circumstances or situations requiring reauthentication.

800-53 Rev. 4 :: IA-11

CCI-004895

800-53 Rev. 5 :: SC-11 b

Group Title

SRG-OS-000480-GPOS-00232

Group ID

V-259562

Rule Version

APPL-14-005050

Rule Title

The macOS system must enable the application firewall.

Rule ID

SV-259562r991593_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The macOS Application Firewall is the built-in firewall that comes with macOS, and it must be enabled.

When the macOS Application Firewall is enabled, the flow of information within the information system and between interconnected systems will be controlled by approved authorizations.

Documentable

False

Check Content

Verify the macOS system is configured to enable the application firewall with the following command:

profile="$(/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.security.firewall')\

.objectForKey('EnableFirewall').js

EOS

plist="$(/usr/bin/defaults read /Library/Preferences/com.apple.alf globalstate 2>/dev/null)"

if [[ "$profile" == "true" ]] && [[ "$plist" =~ [1,2] ]]; then

echo "true"

else

echo "false"

If the result is not "true", this is a finding.

Check System

C-63301r941306_chk

Fix Reference

F-63209r941307_fix

Fix Text

Configure the macOS system to enable the application firewall with the following command:

/usr/bin/defaults write /Library/Preferences/com.apple.alf globalstate -int 1

Identities

CCI-000366

Implement the security configuration settings.

800-53 :: CM-6 b
800-53 Rev. 4 :: CM-6 b
800-53 Rev. 5 :: CM-6 b
800-53A :: CM-6.1 (iv)

Group Title

SRG-OS-000104-GPOS-00051

Group ID

V-259563

Rule Version

APPL-14-005052

Rule Title

The macOS system must configure login window to prompt for username and password.

Rule ID

SV-259563r958482_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The login window must be configured to prompt all users for both a username and a password.

By default, the system displays a list of known users on the login window, which can make it easier for a malicious user to gain access to someone else's account. Requiring users to type in both their username and password mitigates the risk of unauthorized users gaining access to the information system.

Documentable

False

Check Content

Verify the macOS system is configured to prompt for username and password at the login window with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow')\

.objectForKey('SHOWFULLNAME').js

EOS

If the result is not "true", this is a finding.

Check System

C-63302r941309_chk

Fix Reference

F-63210r941310_fix

Fix Text

Configure the macOS system to prompt for username and password at the logon window by installing the "com.apple.loginwindow" configuration profile.

Identities

CCI-000764

Uniquely identify and authenticate organizational users and associate that unique identification with processes acting on behalf of those users.

800-53 :: IA-2
800-53 Rev. 4 :: IA-2
800-53 Rev. 5 :: IA-2
800-53A :: IA-2.1

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259564

Rule Version

APPL-14-005054

Rule Title

The macOS system must disable TouchID prompt during Setup Assistant.

Rule ID

SV-259564r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The prompt for TouchID during Setup Assistant must be disabled.

macOS prompts new users through enabling TouchID during Setup Assistant; this is not essential, and therefore must be disabled to prevent against the risk of individuals electing to enable TouchID to override organizationwide settings.

Documentable

False

Check Content

Verify the macOS system is configured to disable TouchID prompt during Setup Assistant with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SetupAssistant.managed')\

.objectForKey('SkipTouchIDSetup').js

EOS

If the result is not "true", this is a finding.

Check System

C-63303r941312_chk

Fix Reference

F-63211r941313_fix

Fix Text

Configure the macOS system to disable TouchID prompt during Setup Assistant by installing the "com.apple.SetupAssistant.managed" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259565

Rule Version

APPL-14-005055

Rule Title

The macOS system must disable Screen Time prompt during Setup Assistant.

Rule ID

SV-259565r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The prompt for Screen Time setup during Setup Assistant must be disabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable Screen Time prompt during Setup Assistant with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SetupAssistant.managed')\

.objectForKey('SkipScreenTime').js

EOS

If the result is not "true", this is a finding.

Check System

C-63304r941315_chk

Fix Reference

F-63212r941316_fix

Fix Text

Configure the macOS system to disable Screen Time prompt during Setup Assistant by installing the "com.apple.SetupAssistant.managed" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259566

Rule Version

APPL-14-005056

Rule Title

The macOS system must disable Unlock with Apple Watch during Setup Assistant.

Rule ID

SV-259566r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The prompt for Apple Watch unlock setup during Setup Assistant must be disabled.

Disabling Apple watches is a necessary step to ensuring that the information system retains a session lock until the user reestablishes access using an authorized identification and authentication procedures.

Documentable

False

Check Content

Verify the macOS system is configured to disable Unlock with Apple Watch during Setup Assistant with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SetupAssistant.managed')\

.objectForKey('SkipUnlockWithWatch').js

EOS

If the result is not "true", this is a finding.

Check System

C-63305r941318_chk

Fix Reference

F-63213r941319_fix

Fix Text

Configure the macOS system to disable Unlock with Apple Watch during Setup Assistant by installing the "com.apple.SetupAssistant.managed" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259567

Rule Version

APPL-14-005058

Rule Title

The macOS system must disable Handoff.

Rule ID

SV-259567r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Handoff must be disabled.

Handoff allows users to continue working on a document or project when the user switches from one Apple device to another. Disabling Handoff prevents data transfers to unauthorized devices.

Satisfies: SRG-OS-000080-GPOS-00048,SRG-OS-000095-GPOS-00049,SRG-OS-000300-GPOS-00118

Documentable

False

Check Content

Verify the macOS system is configured to disable handoff with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowActivityContinuation').js

EOS

If the result is not "false", this is a finding.

Check System

C-63306r941321_chk

Fix Reference

F-63214r941322_fix

Fix Text

Configure the macOS system to disable handoff by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

CCI-001443

Protect wireless access to the system using authentication of users and/or devices.

800-53 :: AC-18 (1)
800-53 Rev. 4 :: AC-18 (1)
800-53 Rev. 5 :: AC-18 (1)
800-53A :: AC-18 (1).1

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259568

Rule Version

APPL-14-005060

Rule Title

The macOS system must disable proximity-based password sharing requests.

Rule ID

SV-259568r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Proximity-based password sharing requests must be disabled.

The default behavior of macOS is to allow users to request passwords from other known devices (macOS and iOS). This feature must be disabled to prevent passwords from being shared.

Documentable

False

Check Content

Verify the macOS system is configured to disable proximity-based password sharing requests with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowPasswordProximityRequests').js

EOS

If the result is not "false", this is a finding.

Check System

C-63307r941324_chk

Fix Reference

F-63215r941325_fix

Fix Text

Configure the macOS system to disable proximity-based password sharing requests by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000095-GPOS-00049

Group ID

V-259569

Rule Version

APPL-14-005061

Rule Title

The macOS system must disable Erase Content and Settings.

Rule ID

SV-259569r958478_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Erase Content and Settings must be disabled.

Documentable

False

Check Content

Verify the macOS system is configured to disable Erase Content and Settings with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowEraseContentAndSettings').js

EOS

If the result is not "false", this is a finding.

Check System

C-63308r941327_chk

Fix Reference

F-63216r941328_fix

Fix Text

Configure the macOS system to disable Erase Content and Settings by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-000381

Configure the system to provide only organization-defined mission essential capabilities.

800-53 :: CM-7
800-53 Rev. 4 :: CM-7 a
800-53 Rev. 5 :: CM-7 a
800-53A :: CM-7.1 (ii)

Group Title

SRG-OS-000080-GPOS-00048

Group ID

V-259570

Rule Version

APPL-14-005070

Rule Title

The macOS system must enable Authenticated Root.

Rule ID

SV-259570r958472_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Authenticated Root must be enabled.

When Authenticated Root is enabled the macOS is booted from a signed volume that is cryptographically protected to prevent tampering with the system volume.

Note: Authenticated Root is enabled by default on macOS systems.

WARNING: If more than one partition with macOS is detected, the csrutil command will hang awaiting input.

Documentable

False

Check Content

Verify the macOS system is configured to enable authenticated root with the following command:

/usr/bin/csrutil authenticated-root | /usr/bin/grep -c 'enabled'

If the result is not "1", this is a finding.

Check System

C-63309r941330_chk

Fix Reference

F-63217r941331_fix

Fix Text

Configure the macOS system to enable authenticated root with the following command:

/usr/bin/csrutil authenticated-root enable

Note: To reenable "Authenticated Root", boot the affected system into "Recovery" mode, launch "Terminal" from the "Utilities" menu, and run the command.

Identities

CCI-000213

Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

800-53 :: AC-3
800-53 Rev. 4 :: AC-3
800-53 Rev. 5 :: AC-3
800-53A :: AC-3.1

Group Title

SRG-OS-000362-GPOS-00149

Group ID

V-259571

Rule Version

APPL-14-005080

Rule Title

The macOS system must prohibit user installation of software into /users/.

Rule ID

SV-259571r1009608_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Users must not be allowed to install software into /users/.

Allowing users who do not possess explicit privileges to install software presents the risk of untested and potentially malicious software being installed on the system. Explicit privileges (escalated or administrative privileges) provide the regular user with explicit capabilities and control that exceeds the rights of a regular user.

[IMPORTANT]

====

Documentable

False

Check Content

Verify the macOS system is configured to prohibit user installation of software into /users/ with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess.new')\

.objectForKey('familyControlsEnabled'))

let pathlist = $.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess.new')\

.objectForKey('pathBlackList').js

for ( let app in pathlist ) {

if ( ObjC.unwrap(pathlist[app]) == "/Users/" && pref1 == true ){

return("true")

}

return("false")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63310r941333_chk

Fix Reference

F-63218r941334_fix

Fix Text

Configure the macOS system to prohibit user installation of software into /users/ by installing the "com.apple.applicationaccess.new" configuration profile.

Identities

CCI-001812

The information system prohibits user installation of software without explicit privileged status.

800-53 Rev. 4 :: CM-11 (2)

CCI-003980

Allow user installation of software only with explicit privileged status.

800-53 Rev. 5 :: CM-11 (2)

Group Title

SRG-OS-000378-GPOS-00163

Group ID

V-259572

Rule Version

APPL-14-005090

Rule Title

The macOS system must authorize USB devices before allowing connection.

Rule ID

SV-259572r986236_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

USB devices connected to a Mac must be authorized.

[IMPORTANT]

====

This feature is removed if a smart card is paired or smart card attribute mapping is configured.

====

Documentable

False

Check Content

Verify the macOS system is configured to authorize USB devices before allowing connection with the following command:

/usr/bin/osascript -l JavaScript << EOS

function run() {

let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\

.objectForKey('allowUSBRestrictedMode'))

if ( pref1 == false ) {

return("false")

} else {

return("true")

}

EOS

If the result is not "true", this is a finding.

Check System

C-63311r941336_chk

Fix Reference

F-63219r941337_fix

Fix Text

Configure the macOS system to authorize USB devices before allowing connection by installing the "com.apple.applicationaccess" configuration profile.

Identities

CCI-001958

Authenticate organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection.

800-53 Rev. 4 :: IA-3
800-53 Rev. 5 :: IA-3

CCI-003959

Prohibit the use or connection of unauthorized hardware components.

800-53 Rev. 5 :: CM-7 (9) (b)

Group Title

SRG-OS-000445-GPOS-00199

Group ID

V-259573

Rule Version

APPL-14-005100

Rule Title

The macOS system must ensure secure boot level set to full.

Rule ID

SV-259573r958944_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The Secure Boot security setting must be set to full.

Full security is the default Secure Boot setting in macOS. During startup, when Secure Boot is set to full security, the Mac will verify the integrity of the operating system before allowing the operating system to boot.

Note: This will only return a proper result on T2 or Apple Silicon Macs.

Satisfies: SRG-OS-000445-GPOS-00199,SRG-OS-000446-GPOS-00200,SRG-OS-000447-GPOS-00201

Documentable

False

Check Content

Verify the macOS system is configured to ensure secure boot level set to full using the following command:

/usr/libexec/mdmclient QuerySecurityInfo | /usr/bin/grep -c "SecureBootLevel = full"

If the result is not "1", this is a finding.

Check System

C-63312r941339_chk

Fix Reference

F-63220r941340_fix

Fix Text

Configure the macOS system to ensure secure boot level set to full by booting into Recovery Mode and enable Full Secure Boot.

Identities

CCI-002696

Verify correct operation of organization-defined security functions.

800-53 Rev. 4 :: SI-6 a
800-53 Rev. 5 :: SI-6 a

CCI-002699

Perform verification of the correct operation of organization-defined security functions: when the system is in an organization-defined transitional state; upon command by a user with appropriate privileges; and/or on an organization-defined frequency.

800-53 Rev. 4 :: SI-6 b
800-53 Rev. 5 :: SI-6 b

CCI-002702

Shut the system down, restart the system, and/or initiate organization-defined alternative action(s) when anomalies in the operation of the organization-defined security functions are discovered.

800-53 Rev. 4 :: SI-6 d
800-53 Rev. 5 :: SI-6 d

Group Title

SRG-OS-000480-GPOS-00227

Group ID

V-259574

Rule Version

APPL-14-005110

Rule Title

The macOS system must enforce enrollment in mobile device management.

Rule ID

SV-259574r991589_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Users must enroll their Mac in a Mobile Device Management (MDM) software.

User Approved MDM (UAMDM) enrollment or enrollment via Apple Business Manager (ABM)/Apple School Manager (ASM) is required to manage certain security settings. Currently these include:

* Allowed Kernel Extensions

* Allowed Approved System Extensions

* Privacy Preferences Policy Control Payload

* ExtensibleSingleSignOn

* FDEFileVault

In macOS 11, UAMDM grants Supervised status on a Mac, unlocking the following MDM features, which were previously locked behind ABM:

* Activation Lock Bypass

* Access to Bootstrap Tokens

* Scheduling Software Updates

* Query list and delete local users

Documentable

False

Check Content

Verify the macOS system is configured to enforce enrollment in mobile device management with the following command:

/usr/bin/profiles status -type enrollment | /usr/bin/awk -F: '/MDM enrollment/ {print $2}' | /usr/bin/grep -c "Yes (User Approved)"

If the result is not "1", this is a finding.

Check System

C-63313r941342_chk

Fix Reference

F-63221r941343_fix

Fix Text

Configure the macOS system by ensuring that system is enrolled via UAMDM.

Identities

CCI-000366

Implement the security configuration settings.

800-53 :: CM-6 b
800-53 Rev. 4 :: CM-6 b
800-53 Rev. 5 :: CM-6 b
800-53A :: CM-6.1 (iv)

Group Title

SRG-OS-000480-GPOS-00227

Group ID

V-259575

Rule Version

APPL-14-005120

Rule Title

The macOS system must enable recovery lock.

Rule ID

SV-259575r991589_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

A recovery lock password must be enabled and set.

Single user mode, recovery mode, the Startup Manager, and several other tools are available on macOS by holding down specific key combinations during startup. Setting a recovery lock restricts access to these tools.

IMPORTANT: Recovery lock passwords are not supported on Intel devices. This rule is only applicable to Apple Silicon devices.

Documentable

False

Check Content

For non-Apple Silicon systems, this is not applicable.

Verify the macOS system is configured with recovery lock with the following command:

/usr/libexec/mdmclient QuerySecurityInfo | /usr/bin/grep -c "IsRecoveryLockEnabled = 1"

If the result is not "1", this is a finding.

Check System

C-63314r941345_chk

Fix Reference

F-63222r941346_fix

Fix Text

Configure the macOS system with recovery lock with the SetRecoveryLock command. This can be used to set a Recovery Lock password and must be from the MDM.

Identities

CCI-000366

Implement the security configuration settings.

800-53 :: CM-6 b
800-53 Rev. 4 :: CM-6 b
800-53 Rev. 5 :: CM-6 b
800-53A :: CM-6.1 (iv)

Group Title

SRG-OS-000480-GPOS-00227

Group ID

V-259576

Rule Version

APPL-14-005130

Rule Title

The macOS system must enforce installation of XProtect Remediator and Gatekeeper updates automatically.

Rule ID

SV-259576r991589_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Software Update must be configured to update XProtect Remediator and Gatekeeper automatically.

This setting enforces definition updates for XProtect Remediator and Gatekeeper; with this setting in place, new malware and adware that Apple has added to the list of malware or untrusted software will not execute. These updates do not require the computer to be restarted.

https://support.apple.com/en-us/HT207005

Note: Software update will automatically update XProtect Remediator and Gatekeeper by default in the macOS.

Documentable

False

Check Content

Verify the macOS system is configured to enforce installation of XProtect Remediator and Gatekeeper updates automatically with the following command:

/usr/bin/osascript -l JavaScript << EOS

$.NSUserDefaults.alloc.initWithSuiteName('com.apple.SoftwareUpdate')\

.objectForKey('ConfigDataInstall').js

EOS

If the result is not "true", this is a finding.

Check System

C-63315r941348_chk

Fix Reference

F-63223r941349_fix

Fix Text

Configure the macOS system to enforce installation of XProtect Remediator and Gatekeeper updates automatically by installing the "com.apple.SoftwareUpdate" configuration profile.

Identities

CCI-000366

Implement the security configuration settings.

800-53 :: CM-6 b
800-53 Rev. 4 :: CM-6 b
800-53 Rev. 5 :: CM-6 b
800-53A :: CM-6.1 (iv)

UNCLASSIFIED