U Apple iOS-iPadOS 17 V2R1

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All (64)

Highs (3)

Mediums (46)

Lows (15)

UNCLASSIFIED

Group Title

PP-MDF-333024

Group ID

V-258320

Rule Version

AIOS-17-006500

Rule Title

Apple iOS/iPadOS 17 must be configured to enforce a minimum password length of six characters.

Rule ID

SV-258320r1015680_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. The ability to crack a password is a function of how many attempts an adversary is permitted, how quickly an adversary can do each attempt, and the size of the password space. The longer the minimum length of the password is, the larger the password space. Having a too-short minimum password length significantly reduces password strength, increasing the chance of password compromise and resulting device and data compromise.

SFR ID: FMT_SMF_EXT.1.1 #1a

Documentable

False

Check Content

Review configuration settings to confirm the minimum passcode length is six or more characters.

This procedure is performed in the Apple iOS/iPadOS management tool and on the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Management tool, verify the "Minimum passcode length" value is set to six or greater.

Alternatively, verify the text "<key>minLength</key> <integer>6</integer>" appears in the configuration profile (.mobileconfig file). It also is acceptable for the integer value to be greater than six.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the password policy.

5. Tap "Restrictions".

6. Tap "Passcode".

7. Verify "Minimum length" is listed as "six or greater".

If the "Minimum passcode length" is less than six characters in the iOS management tool, "<key>minLength</key> " has an integer value of less than six, or the password policy on the iPhone and iPad from the Apple iOS/iPadOS management tool does not list "Minimum length" of six or more, this is a finding.

Check System

C-62061r927641_chk

Fix Reference

F-61985r927642_fix

Fix Text

Install a configuration profile to enforce a minimum passcode length value of six or greater.

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-004066

For password-based authentication, enforce organization-defined composition and complexity rules.

800-53 Rev. 5 :: IA-5 (1) (h)

Group Title

PP-MDF-333025

Group ID

V-258321

Rule Version

AIOS-17-006600

Rule Title

Apple iOS/iPadOS 17 must be configured to not allow passwords that include more than four repeating or sequential characters.

Rule ID

SV-258321r1015681_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. Passwords that contain repeating or sequential characters are significantly easier to guess than those that do not contain repeating or sequential characters. Therefore, disallowing repeating or sequential characters increases password strength and decreases risk.

SFR ID: FMT_SMF_EXT.1.1 #1b

Documentable

False

Check Content

Review configuration settings to confirm simple passcodes are not allowed.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow simple value" is unchecked. Alternatively, verify the text "<key>allowSimple</key> <false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the password policy.

5. Tap "Restrictions".

6. Tap "Passcode".

7. Verify "Simple passcodes allowed" is set to "No".

If "Allow simple value" is checked in the Apple iOS/iPadOS management tool, "<key>allowSimple</key> <true/>" appears in the Configuration Profile, or the password policy on the iPhone and iPad does not have "Simple passcodes allowed" set to "No", this is a finding.

Check System

C-62062r927644_chk

Fix Reference

F-61986r927645_fix

Fix Text

Install a configuration profile to disallow more than four sequential or repeating numbers or letters in the device unlock password.

Identities

CCI-000195

The information system, for password-based authentication, when new passwords are created, enforces that at least an organization-defined number of characters are changed.

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

PP-MDF-333030

Group ID

V-258323

Rule Version

AIOS-17-006800

Rule Title

Apple iOS/iPadOS 17 must be configured to lock the display after 15 minutes (or less) of inactivity.

Rule ID

SV-258323r971318_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The screen lock timeout must be set to a value that helps protect the device from unauthorized access. Having a too-long timeout would increase the window of opportunity for adversaries who gain physical access to the mobile device through loss, theft, etc. Such devices are much more likely to be in an unlocked state when acquired by an adversary, thus granting immediate access to the data on the mobile device. The maximum timeout period of 15 minutes has been selected to balance functionality and security; shorter timeout periods may be appropriate depending on the risks posed to the mobile device.

SFR ID: FMT_SMF_EXT.1.1 #2b

Documentable

False

Check Content

Review configuration settings to confirm the screen lock timeout is set to 15 minutes or less.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the management tool, verify the sum of the values assigned to "Maximum Auto-Lock time" and "Grace period for device lock" is between 1 and 15 minutes.

Alternatively, locate the text "<key>maxGracePeriod</key>" and "<key>maxInactivity</key>" and ensure the sum of their integer value is between 1 and 15 in the configuration profile (.mobileconfig file). For example:

"<key>maxGracePeriod</key>

<key>maxInactivity</key>

<integer>5</integer>"

Here, 5 + 5 = 10; this meets the requirement.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the password policy.

5. Tap "Restrictions".

6. Tap "Passcode".

7. Verify the sum of the "Max grace period" and "Max inactivity" values is less than 15 minutes.

Note: On some iOS/iPadOS devices, it is not possible to have a sum of exactly 15. In these cases, the sum must be less than 15. A sum of 16 does not meet the requirement.

On the management server, if the sum of the "Max grace period" and "Max inactivity" values is not between 1 and 15 minutes in the iOS/iPadOS management tool or the sum of the values assigned to "<key>maxGracePeriod</key>" and "<key>maxInactivity</key>" is not between 1 and 15 minutes in the configuration profile, or if on the iPhone/iPad, the sum of the values assigned to "Max grace period" and "Max inactivity" is not between 1 and 15 minutes, this is a finding.

Check System

C-62064r927650_chk

Fix Reference

F-61988r927651_fix

Fix Text

Install a configuration profile to lock the device display after 15 minutes (or less) of inactivity. This is done by setting "Maximum Auto-Lock time" and "Grace Period for device lock" so the sum of their values is between 1 and 15 minutes.

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

PP-MDF-333040

Group ID

V-258324

Rule Version

AIOS-17-006900

Rule Title

Apple iOS/iPadOS 17 must be configured to not allow more than 10 consecutive failed authentication attempts.

Rule ID

SV-258324r958388_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The more attempts an adversary has to guess a password, the more likely the adversary will enter the correct password and gain access to resources on the device. Setting a limit on the number of attempts mitigates this risk. Setting the limit at 10 or less gives authorized users the ability to make a few mistakes when entering the password but still provides adequate protection against dictionary or brute force attacks on the password.

SFR ID: FMT_SMF_EXT.1.1 #2c, FIA_AFL_EXT.1.5

Documentable

False

Check Content

Review configuration settings to confirm that consecutive failed authentication attempts is set to 10 or fewer.

This procedure is performed in the Apple iOS/iPadOS management tool and on the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Management tool, verify the "Maximum number of failed attempts" value is set to 10 or fewer.

Alternatively, verify the text "<key>maxFailedAttempts</key> <integer>10</integer>" appears in the configuration profile (.mobileconfig file). It also is acceptable for the integer value to be less than 10.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the password policy.

5. Tap "Restrictions".

6. Tap "Passcode".

7. Verify "Max failed attempts" is listed as "10" or fewer.

If the "Maximum number of failed attempts" is more than 10 in the iOS management tool, "<key>maxFailedAttempts</key> " has an integer value of more than 10, or the password policy on the iPhone and iPad does not list "Max failed attempts" of 10 or fewer, this is a finding.

Check System

C-62065r927653_chk

Fix Reference

F-61989r927654_fix

Fix Text

Install a configuration profile to allow only 10 or fewer consecutive failed authentication attempts.

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)

Group Title

PP-MDF-333050

Group ID

V-258326

Rule Version

AIOS-17-007000

Rule Title

Apple iOS/iPadOS 17 must be configured to enforce an application installation policy by specifying one or more authorized application repositories, including [selection: DOD-approved commercial app repository, MDM server, mobile application store].

Rule ID

SV-258326r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Forcing all applications to be installed from authorized application repositories can prevent unauthorized and malicious applications from being installed and executed on mobile devices. Allowing such installations and executions could cause a compromise of DOD data accessible by these unauthorized/malicious applications.

SFR ID: FMT_SMF_EXT.1.1 #8a

Documentable

False

Check Content

Review configuration settings to confirm "Allow Trusting New Enterprise App Authors" is disabled.

This procedure is performed in the Apple iOS/iPadOS management tool and on the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Management tool, verify "Allow Trusting New Enterprise App Authors" is disabled.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Trusting enterprise apps not allowed" is listed.

If "Allow Trusting New Enterprise App Authors" is not disabled in the iOS/iPadOS management tool or on the iPhone and iPad, this is a finding.

Check System

C-62067r927659_chk

Fix Reference

F-61991r927660_fix

Fix Text

Install a configuration profile to disable "Allow Trusting New Enterprise App Authors".

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

PP-MDF-333070

Group ID

V-258327

Rule Version

AIOS-17-007200

Rule Title

Apple iOS/iPadOS 17 must not include applications with the following characteristics: access to Siri when the device is locked.

Rule ID

SV-258327r971535_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Requiring all authorized applications to be in an application allow list prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the allow list. Failure to configure an application allow list properly could allow unauthorized and malicious applications to be downloaded, installed, and executed on the mobile device, causing a compromise of DOD data accessible by these applications. Applications with the listed characteristics have features that can cause the compromise of sensitive DOD data or have features with no known application in the DOD environment.

Application note: The application allow list, in addition to controlling the installation of applications on the MD, must control user access/execution of all core and preinstalled applications, or the MD must provide an alternate method of restricting user access/execution to core and preinstalled applications.

Core application: Any application integrated into the OS by the OS or MD vendors.

Preinstalled application: Additional noncore applications included in the OS build by the OS vendor, MD vendor, or wireless carrier.

SFR ID: FMT_SMF_EXT.1.1 #8b

Documentable

False

Check Content

Review configuration settings to confirm that Siri is disabled on the Lock screen.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow Siri while device is locked" is unchecked.

Alternatively, verify the text "<key>allowAssistantWhileLocked</key><false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Siri while locked not allowed" is listed.

If "Allow Siri while device is locked" is checked in the Apple iOS/iPadOS management tool, or "<key>allowAssistantWhileLocked</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad from the Apple iOS/iPadOS management tool does not list "Siri while locked not allowed", this is a finding.

Check System

C-62068r927662_chk

Fix Reference

F-61992r927663_fix

Fix Text

Install a configuration profile to disable Siri while the device is locked.

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)

CCI-000803

Implement mechanisms for authentication to a cryptographic module that meet the requirements of applicable laws, Executive Orders, directives, policies, regulations, standards, and guidance for such authentication.

800-53 :: IA-7
800-53 Rev. 4 :: IA-7
800-53 Rev. 5 :: IA-7
800-53A :: IA-7.1

Group Title

PP-MDF-333070

Group ID

V-258328

Rule Version

AIOS-17-007400

Rule Title

Apple iOS/iPadOS 17 allow list must be configured to not include applications with the following characteristics: - backs up MD data to non-DOD cloud servers (including user and application access to cloud backup services);- transmits MD diagnostic data to non-DOD servers;- allows synchronization of data or applications between devices associated with user; and- allows unencrypted (or encrypted but not FIPS 140-2/FIPS 140-3 validated) data sharing with other MDs or printers.

Rule ID

SV-258328r971535_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Core application: Any application integrated into the OS by the OS or MD vendors.

Preinstalled application: Additional noncore applications included in the OS build by the OS vendor, MD vendor, or wireless carrier.

SFR ID: FMT_SMF_EXT.1.1 #8b

Documentable

False

Check Content

Verify no apps with the following prohibited characteristics are included in the configuration profile:

- backs up MD data to non-DOD cloud servers (including user and application access to cloud backup services);

- transmits MD diagnostic data to non-DOD servers;

- allows synchronization of data or applications between devices associated with user; and

- allows unencrypted (or encrypted but not FIPS 140-2/FIPS 140-3 validated) data sharing with other MDs or printers.

This check procedure is performed on the Apple iOS/iPadOS management tool.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow Listed App" (allowlistedAppBundleIDs) is configured and there are no apps with prohibited characteristics.

If "Allow listed apps" is not configured and contains apps with prohibited characteristics, this is a finding.

Check System

C-62069r927665_chk

Fix Reference

F-61993r927666_fix

Fix Text

Install a configuration profile with an allow list of approved apps (allowlistedAppBundleIDs). Ensure the allow list does not include apps with the following characteristics:

- Backs up MD data to non-DOD cloud servers (including user and application access to cloud backup services).

- Transmits MD diagnostic data to non-DOD servers.

- Allows synchronization of data or applications between devices associated with user.

- Allows unencrypted (or encrypted but not FIPS 140-2/FIPS 140-3 validated) data sharing with other MDs or printers.

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

PP-MDF-333080

Group ID

V-258329

Rule Version

AIOS-17-007500

Rule Title

Apple iOS/iPadOS 17 must be configured to not display notifications when the device is locked.

Rule ID

SV-258329r958404_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Many mobile devices display notifications on the lock screen so users can obtain relevant information in a timely manner without having to frequently unlock the phone to determine if there are new notifications. However, in many cases, these notifications can contain sensitive information. When they are available on the lock screen, an adversary can see them merely by being in close physical proximity to the device. Configuring the mobile operating system to not send notifications to the lock screen mitigates this risk.

SFR ID: FMT_SMF_EXT.1.1 #18

Documentable

False

Check Content

Review configuration settings to confirm the display of notifications when the device is locked has been disabled. There are two acceptable methods. The first method is preferred.

***Verification Procedure for Method 1:

This check procedure is performed only on the Apple iOS/iPadOS management tool.

In the Apple iOS/iPadOS management tool, for each managed app, verify the app is configured to disable Notifications preview.

If one or more managed apps are not set to disable notification previews, this is a finding.

***Verification Procedure for Method 2:

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Show Notification Center in Lock screen" is unchecked.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the management policy.

5. Tap "Restrictions".

6. Verify "Notifications view on lock screen not allowed" is present.

If "Show Notification Center in Lock screen" is checked in the Apple iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad does not list "Notifications View on lock screen not allowed", this is a finding.

Check System

C-62070r927668_chk

Fix Reference

F-61994r927669_fix

Fix Text

Install a configuration profile to disable the display of notifications when the device is locked. There are two acceptable methods. The first method is preferred.

Method 1:

Install a configuration profile to disable notifications for each managed app if the device screen is locked. This method is not supported by all MDM servers.

Method 2:

Install a configuration profile to disable Notification Center from the device Lock screen.

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

PP-MDF-333080

Group ID

V-258330

Rule Version

AIOS-17-007600

Rule Title

Apple iOS/iPadOS 17 must not display notifications (calendar information) when the device is locked.

Rule ID

SV-258330r958404_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_SMF_EXT.1.1 #18

Documentable

False

Check Content

Review configuration settings to confirm "Show Today view in Lock screen" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Show Today view in Lock screen" is unchecked.

Alternatively, verify the text "<key>allowLockScreenTodayView</key><false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "Profiles & Device Management" or Profiles".

4. Tap the Configuration Profile from the iOS management tool containing the management policy.

5. Tap "Restrictions".

6. Verify "Today view on lock screen not allowed" is present.

If "Show Today view in Lock screen" is checked in the Apple iOS/iPadOS management tool, "<key>allowLockScreenTodayView</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Today view on lock screen not allowed", this is a finding.

Check System

C-62071r927671_chk

Fix Reference

F-61995r927672_fix

Fix Text

Install a configuration profile to disable "Show Today view in Lock screen" from the device Lock screen.

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

PP-MDF-333240

Group ID

V-258332

Rule Version

AIOS-17-009200

Rule Title

Apple iOS/iPadOS 17 must be configured to not allow backup of [all applications, configuration data] to locally connected systems.

Rule ID

SV-258332r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Data on mobile devices is protected by numerous mechanisms, including user authentication, access control, and cryptography. When the data is backed up to an external system (either locally connected or cloud based), many if not all of these mechanisms are no longer present. This leaves the backed-up data vulnerable to attack. Disabling backup to external systems mitigates this risk.

SFR ID: FMT_SMF_EXT.1.1 #40

Documentable

False

Check Content

Review configuration settings to confirm backup in management apps is disabled and "Encrypt local backup" is enabled in iTunes (for Windows computer) and in Finder on Mac.

Note: iTunes Backup/Finder backup is implemented by the configuration policy rule "Force encrypted backups", which is included in AIOS-17-010700 and therefore not included in the procedure below.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify backing up app data is disabled.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Apps".

6. Tap a "managed app".

7. Verify "App data will not be backed up" is listed.

Note: Steps 6 and 7 must be performed for each managed app.

If backing up app data is not disabled in the Apple iOS/iPadOS management tool or "app data will not be backed up" is not listed for each managed app on the iPhone and iPad, this is a finding.

Check System

C-62073r927677_chk

Fix Reference

F-61997r927678_fix

Fix Text

Install a configuration profile to disable backup of managed apps.

Identities

CCI-001090

Prevent unauthorized and unintended information transfer via shared system resources.

800-53 :: SC-4
800-53 Rev. 4 :: SC-4
800-53 Rev. 5 :: SC-4
800-53A :: SC-4.1

Group Title

PP-MDF-333280

Group ID

V-258333

Rule Version

AIOS-17-009700

Rule Title

Apple iOS/iPadOS 17 must not allow non-DOD applications to access DOD data.

Rule ID

SV-258333r958878_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

App data sharing gives apps the ability to access the data of other apps for enhanced user functionality. However, sharing also poses a significant risk that unauthorized users or apps will obtain access to sensitive DOD information. To mitigate this risk, there are data sharing restrictions. If a user is allowed to make exceptions to the data sharing restriction policy, the user could enable unauthorized sharing of data, leaving it vulnerable to breach. Limiting the granting of exceptions to either the Administrator or common application developer mitigates this risk.

Copy/paste of data between applications in different application processes or groups of application processes is considered an exception to the access control policy; therefore, the Administrator must be able to enable/disable the feature. Other exceptions include allowing any data or application sharing between process groups.

SFR ID: FMT_SMF_EXT.1.1 #42, FDP_ACF_EXT.1.2

Documentable

False

Check Content

Review configuration settings to confirm "Allow documents from managed apps in unmanaged apps" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow documents from managed apps in unmanaged apps" is unchecked.

Alternatively, verify the text "<key>allowOpenFromManagedToUnmanaged</key><false/>" appears in the configuration profile (.mobileconfig file).

On the iOS device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Opening documents from managed to unmanaged apps not allowed" is listed.

If "Allow documents from managed apps in unmanaged apps" is checked in the iOS management tool, "<key>allowOpenFromManagedToUnmanaged</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Opening documents from managed to unmanaged apps not allowed", this is a finding.

Check System

C-62074r927680_chk

Fix Reference

F-61998r927681_fix

Fix Text

Install a configuration profile to prevent non-DOD applications from accessing DOD data.

Identities

CCI-002233

Prevent the organization-defined software from executing at higher privilege levels than users executing the software.

800-53 Rev. 4 :: AC-6 (8)
800-53 Rev. 5 :: AC-6 (8)

CCI-002530

Maintain a separate execution domain for each executing system process.

800-53 Rev. 4 :: SC-39
800-53 Rev. 5 :: SC-39

Group Title

PP-MDF-333290

Group ID

V-258334

Rule Version

AIOS-17-009800

Rule Title

Apple iPadOS 17 must be configured to disable multiuser modes.

Rule ID

SV-258334r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Multiuser mode allows multiple users to share a mobile device by providing a degree of separation between user data. To date, no mobile device with multiuser mode features meets DOD requirements for access control, data separation, and nonrepudiation for user accounts. In addition, the MDFPP does not include design requirements for multiuser account services. Disabling multiuser mode mitigates the risk of not meeting DOD multiuser account security policies.

SFR ID: FMT_SMF_EXT.1.1 #47a

Documentable

False

Check Content

Verify multiuser mode (shared iPad) is disabled in the MDM console for iPadOS devices. This requirement is not applicable for iOS devices.

If multiuser mode is not disabled in the MDM console for iPadOS devices, this is a finding.

Check System

C-62075r927683_chk

Fix Reference

F-61999r927684_fix

Fix Text

Disable multiuser mode (shared iPad) in the MDM console for iPadOS devices.

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)

CCI-002110

The organization defines the information system account types that support the organizational missions/business functions.

800-53 Rev. 4 :: AC-2 a

Group Title

PP-MDF-333300

Group ID

V-258335

Rule Version

AIOS-17-009900

Rule Title

Apple iOS/iPadOS 17 must be configured to [selection: wipe protected data, wipe sensitive data] upon unenrollment from MDM.

Rule ID

SV-258335r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized because it will no longer be protected by the MDM software, putting it at much greater risk of unauthorized access and disclosure. At least one of the two options must be selected.

SFR ID: FMT_SMF_EXT.2.1

Documentable

False

Check Content

Note: Not all Apple iOS/iPadOS deployments involve MDM. If the site uses an authorized alternative to MDM for distribution of configuration profiles (Apple Configurator), this check procedure is not applicable.

This check procedure is performed on the Apple iOS/iPadOS management tool or on the iOS device.

In the Apple iOS/iPadOS management tool, for each managed app, verify the app is configured to be removed when the MDM profile is removed.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the management policy.

5. Tap "Apps".

6. Tap an app and verify "App and data will be removed when device is no longer managed" is listed.

Repeat steps 5 and 6 for each managed app in the list.

If one or more managed apps are not set to be removed upon device MDM unenrollment, this is a finding.

Check System

C-62076r927686_chk

Fix Reference

F-62000r927687_fix

Fix Text

Install a configuration profile to delete all managed apps upon device unenrollment.

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)

CCI-001033

Defines circumstances requiring sanitization of portable storage devices prior to connecting such devices to the system.

800-53 :: MP-6 (3)
800-53 Rev. 4 :: MP-6 (3)
800-53 Rev. 5 :: MP-6 (3)
800-53A :: MP-6 (3).1 (i)

Group Title

PP-MDF-333310

Group ID

V-258336

Rule Version

AIOS-17-010000

Rule Title

Apple iOS/iPadOS 17 must be configured to [selection: remove Enterprise applications, remove all noncore applications (any nonfactory-installed application)] upon unenrollment from MDM.

Rule ID

SV-258336r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_SMF_EXT.2.1

Documentable

False

Check Content

This check procedure is performed on the Apple iOS/iPadOS management tool or on the iOS device.

In the Apple iOS/iPadOS management tool, for each managed app, verify the app is configured to be removed when the MDM profile is removed.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the management policy.

5. Tap "Apps".

6. Tap an app and verify "App and data will be removed when device is no longer managed" is listed.

Repeat steps 5 and 6 for each managed app in the list.

If one or more managed apps are not set to be removed upon device MDM unenrollment, this is a finding.

Check System

C-62077r927689_chk

Fix Reference

F-62001r927690_fix

Fix Text

Install a configuration profile to delete all managed apps upon device unenrollment.

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)

CCI-001033

Defines circumstances requiring sanitization of portable storage devices prior to connecting such devices to the system.

800-53 :: MP-6 (3)
800-53 Rev. 4 :: MP-6 (3)
800-53 Rev. 5 :: MP-6 (3)
800-53A :: MP-6 (3).1 (i)

Group Title

PP-MDF-333330

Group ID

V-258337

Rule Version

AIOS-17-010200

Rule Title

Apple iOS/iPadOS 17 must be configured to disable ad hoc wireless client-to-client connection capability.

Rule ID

SV-258337r987886_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Ad hoc wireless client-to-client connections allow mobile devices to communicate with each other directly, circumventing network security policies and making the traffic invisible. This could allow the exposure of sensitive DOD data and increase the risk of downloading and installing malware on the DOD mobile device.

SFR ID: FMT_SMF_EXT.1.1/WLAN

Documentable

False

Check Content

Determine if the site authorizing official (AO) has approved the use of AirDrop for unmanaged data transfer. Look for a document showing approval. If AirDrop is not approved, review configuration settings to confirm it is disabled. If AirDrop is approved, this requirement is not applicable.

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding (if the AO has not approved the use of AirDrop for unmanaged data transfer).

If the iPhone or iPad being reviewed is supervised by the MDM, follow these procedures:

This check procedure is performed on both the device management tool and the iPhone and iPad device.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS/iPadOS management tool, verify "Allow AirDrop" is unchecked.

On the iPhone/iPad device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "AirDrop not allowed" is listed.

If the AO has not approved AirDrop, and "AirDrop not allowed" is not listed in the management tool and on the Apple device, this is a finding.

Check System

C-62078r927692_chk

Fix Reference

F-62002r927693_fix

Fix Text

If the AO has not approved the use of AirDrop for unmanaged data transfer, install a configuration profile to disable the AllowAirDrop control in the management tool. This a supervised-only control.

Identities

CCI-002536

Protect organization-defined external and internal wireless links from organization-defined types of signal parameter attacks or references to sources for such attacks.

800-53 Rev. 4 :: SC-40
800-53 Rev. 5 :: SC-40

Group Title

PP-MDF-993300

Group ID

V-258341

Rule Version

AIOS-17-010700

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: Encrypt backups/Encrypt local backup.

Rule ID

SV-258341r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If iCloud backups are not encrypted, this could lead to the unauthorized disclosure of DOD sensitive information if non-DOD personnel are able to access that machine. Forcing the backup to be encrypted greatly mitigates the risk of compromising sensitive data. Work data iCloud backup and USB connections to computers are not authorized, but this control provides defense-in-depth for cases in which a user violates policy either intentionally or inadvertently.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm "Force encrypted backups" is enabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Encrypt local backup" is checked.

Alternatively, verify the text "<key>forceEncryptedBackup</key><true/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Encrypt backups enforced" is listed.

If "Encrypt local backup" is unchecked in the Apple iOS/iPadOS management tool, "<key>forceEncryptedBackup</key><false/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Encrypt backups enforced", this is a finding.

Check System

C-62082r927704_chk

Fix Reference

F-62006r927705_fix

Fix Text

Install a configuration profile to force encrypted backups to iCloud.

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)

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

PP-MDF-993300

Group ID

V-258346

Rule Version

AIOS-17-011000

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: Disable Allow MailDrop.

Rule ID

SV-258346r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

MailDrop allows users to send large attachments (up to 5 GB) via iCloud. Storing data with a non-DOD cloud provider may leave the data vulnerable to breach. Disabling non-DOD cloud services mitigates this risk.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm "Allow MailDrop" is disabled.

This validation procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow MailDrop" is not checked.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Mail".

6. Tap the mail account.

7. Verify "Mail Drop Enabled" is set to "No".

If "Allow MailDrop" is not disabled in the Apple iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad lists "Mail Drop Enabled" as "Yes", this is a finding.

Check System

C-62087r927719_chk

Fix Reference

F-62011r927720_fix

Fix Text

Configure the Apple iOS/iPadOS configuration profile to disable "Allow MailDrop".

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)

CCI-002314

Employ automated mechanisms to control remote access methods.

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

Group Title

PP-MDF-993300

Group ID

V-258348

Rule Version

AIOS-17-011300

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: use SSL for Exchange ActiveSync.

Rule ID

SV-258348r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Exchange email messages are a form of data in transit and thus are vulnerable to eavesdropping and man-in-the-middle attacks. Secure Sockets Layer (SSL), also referred to as Transport Layer Security (TLS), provides encryption and authentication services that mitigate the risk of breach.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm "Use SSL" for the Exchange account is enabled for incoming mail.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Use SSL for incoming mail" is checked under the Exchange payload.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the Exchange policy.

5. Tap "Mail".

6. Tap the name of the Exchange account.

7. Verify "SSL for incoming mail" is set to "Yes".

If "Use SSL for incoming mail" is unchecked in the Apple iOS/iPadOS management tool or the Exchange policy on the iPhone and iPad has "SSL for incoming mail" set to "No", this is a finding.

Check System

C-62089r927725_chk

Fix Reference

F-62013r927726_fix

Fix Text

Install a configuration profile to use SSL for Exchange ActiveSync incoming mail.

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

PP-MDF-993300

Group ID

V-258349

Rule Version

AIOS-17-011400

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: not allow messages in an ActiveSync Exchange account to be forwarded or moved to other accounts in the Apple iOS/iPadOS 17 Mail app.

Rule ID

SV-258349r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The Apple iOS/iPadOS Mail app can be configured to support multiple email accounts concurrently. These email accounts are likely to involve content of varying degrees of sensitivity (e.g., both personal and enterprise messages). To prevent the unauthorized and undetected forwarding or moving of messages from one account to another, Mail ActiveSync Exchange accounts can be configured to block such behavior. While users may still send a message from the Exchange account to another account, these transactions must involve an Exchange server, enabling audit records of the transaction, filtering of mail content, and subsequent forensic analysis.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm "Allow messages to be moved" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow messages to be moved" is unchecked under the Exchange payload.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the Exchange policy.

5. Tap "Mail".

6. Tap the "name of the Exchange account".

7. Verify "Prevent Move" is set to "Yes".

If "Allow messages to be moved" is checked in the Apple iOS/iPadOS management tool or the Exchange policy on the iPhone and iPad has "Prevent Move" set to "No", this is a finding.

Check System

C-62090r927728_chk

Fix Reference

F-62014r927729_fix

Fix Text

Install a configuration profile to prevent Exchange messages from being moved or forwarded between email accounts.

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)

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

PP-MDF-993300

Group ID

V-258350

Rule Version

AIOS-17-011500

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: Treat AirDrop as an unmanaged destination.

Rule ID

SV-258350r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

AirDrop is a way to send contact information or photos to other users with AirDrop enabled. This feature enables a possible attack vector for adversaries to exploit. Once the attacker has gained access to the information broadcast by this feature, the attacker may distribute this sensitive information very quickly and without DOD's control or awareness. By disabling this feature, the risk of mass data exfiltration will be mitigated.

Note: If the site uses Apple's optional Automatic Device Enrollment, this control is available as a supervised MDM control.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm "Treat AirDrop as an unmanaged destination" is enabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Treat AirDrop as unmanaged destination" is checked.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Sharing managed documents using AirDrop not allowed" is listed.

If "Treat AirDrop as unmanaged destination" is disabled in the Apple iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad does not list "Sharing managed documents using AirDrop not allowed", this is a finding.

Check System

C-62091r927731_chk

Fix Reference

F-62015r927732_fix

Fix Text

Install a configuration profile to treat AirDrop as an unmanaged destination.

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)

CCI-002008

For PKI-based authentication, employs an organization-wide methodology for managing the content of PKI trust stores installed across all platforms including networks, operating systems, browsers, and applications.

800-53 Rev. 4 :: IA-5 (14)
800-53 Rev. 5 :: IA-5 (14)

Group Title

PP-MDF-993300

Group ID

V-258352

Rule Version

AIOS-17-011700

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: not share location data through iCloud.

Rule ID

SV-258352r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Sharing of location data is an operational security (OPSEC) risk because it potentially allows an adversary to determine a DOD user's location, movements, and patterns in those movements over time. An adversary could use this information to target the user or gather intelligence on the user's likely activities. Using commercial cloud services to store and handle location data could leave the data vulnerable to breach, particularly by sophisticated adversaries. Disabling the use of such services mitigates this risk.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm "Share My Location" is disabled. Note that this is a User-Based Enforcement (UBE) control, which cannot be managed by an MDM server.

This check procedure is performed on the iPhone and iPad only.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "Privacy & Security".

3. Tap "Location Services".

4. If the authorizing official (AO) has not approved use of personal iCloud accounts on the device, verify "Share My Location" is grayed out (cannot be selected).

5. If the AO has approved the use of personal iCloud accounts on the device, tap "Share My Location".

6. Verify "Share My Location" is off.

If "Share My Location" is not grayed out (cannot be selected) when the AO has not approved use of personal iCloud accounts on the device, this is a finding.

If "Share My Location" is toggled to the right and appears green on the iPhone and iPad when the AO has approved the use of personal iCloud accounts, this is a finding.

Check System

C-62093r927737_chk

Fix Reference

F-62017r927738_fix

Fix Text

The user must configure Apple iOS/iPadOS to disable location sharing through iCloud.

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)

Group Title

PP-MDF-993300

Group ID

V-258354

Rule Version

AIOS-17-011900

Rule Title

Apple iOS/iPadOS 17 users must complete required training.

Rule ID

SV-258354r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The security posture on iOS devices requires the device user to configure several required policy rules on their device. User-Based Enforcement (UBE) is required for these controls. In addition, if the authorizing official (AO) has approved users' full access to the Apple App Store, users must receive training on risks. If a user is not aware of their responsibilities and does not comply with UBE requirements, the security posture of the iOS mobile device and DOD sensitive data may become compromised.

SFR ID: NA

Documentable

False

Check Content

Review a sample of site User Agreements for iOS device users or similar training records and training course content. Verify iPhone and iPad users have completed required training.

If any iPhone/iPad user has not completed required training, this is a finding.

Check System

C-62095r927743_chk

Fix Reference

F-62019r927744_fix

Fix Text

Have all iPhone and iPad users complete training on the following topics. Users must acknowledge receipt of training via a signed User Agreement or similar written record.

Training topics:

- Operational security concerns introduced by unmanaged applications, including applications using global positioning system (GPS) tracking.

- Must ensure no DOD data is saved in an unmanaged app or transmitted from a personal app (for example, from personal email).

- If the Purebred key management app is used, users are responsible for maintaining positive control of their credentialed device at all times. The DOD PKI certificate policy requires subscribers to maintain positive control of the devices that contain private keys and report any loss of control so the credentials can be revoked. Upon device retirement, turn in, or reassignment, ensure a factory data reset is performed prior to device handoff. Follow mobility service provider decommissioning procedures as applicable.

- How to configure the following UBE controls (users must configure the control) and other controls on the iPhone and iPad:

**Remove Family Sharing

**Disable Shared Location

**Disable Wi-Fi Assist

**Use AirPrint only with AO-approved printers and print servers (see the Multifunction Device and Network Printers STIG for requirements)

**Turn off "Apps" under "AUTOMATIC DOWNLOADS" in the "iTunes & App Store" section of the Settings app on the iPhone and iPad

**Secure use of Calendar Alarm

**Do not configure a DOD network (work) VPN profile on any third-party unmanaged VPN app

**Disable iPhone and iPad radios using controls under "Settings" instead of "Control Center"

- AO guidance on acceptable use and restrictions, if any, on downloading and installing personal apps and data (music, photos, etc.).

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)

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

PP-MDF-993300

Group ID

V-258355

Rule Version

AIOS-17-012000

Rule Title

A managed photo app must be used to take and store work-related photos.

Rule ID

SV-258355r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The iOS Photos app is unmanaged and may sync photos with a device user's personal iCloud account. Therefore, work-related photos must not be taken via the iOS camera app or stored in the Photos app. A managed photo app must be used to take and manage work-related photos.

SFR ID: NA

Documentable

False

Check Content

Review configuration settings to confirm a managed photos app is installed on the iOS device.

This check procedure is performed on the iPhone and iPad.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the DOD Configuration Profile from the Apple iOS/iPadOS management tool.

5. Tap "Apps".

6. Verify a photo capture and management app is listed.

If a managed photo capture and management app is not installed on the iPhone and iPad, this is a finding.

Check System

C-62096r927746_chk

Fix Reference

F-62020r927747_fix

Fix Text

Install a managed photos app to take and manage work-related photos.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

Group Title

PP-MDF-993300

Group ID

V-258356

Rule Version

AIOS-17-012200

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: enable USB Restricted Mode.

Rule ID

SV-258356r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The USB lightning port on an iOS device can be used to access data on the device. The required settings ensure the Apple device password is entered before a previously trusted USB accessory can connect to the device.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This is a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Allow USB Restricted Mode" is enabled.

This check procedure is performed on both the device management tool and the iPhone and iPad device.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow USB Restricted Mode" is checked (set to "True").

On the iPhone/iPad device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify there is no listing for "USB Accessories while locked allowed".

If "Allow USB Restricted Mode" is not enabled in the management tool and there is a restriction listed in the profile on the Apple device, this is a finding.

Note: The default configuration setting for "allow USB Restricted Mode" is "True" in most MDM products. This is the required setting. When set correctly, nothing will be listed in the Restrictions profile, and the user will be able to toggle USB accessories on/off.

Note: "Allow USB Restricted Mode" may be called "Allow USB accessories while device is locked" in some MDM consoles. The required logic is to disable USB accessory connections when the device is locked.

Check System

C-62097r927749_chk

Fix Reference

F-62021r927750_fix

Fix Text

Install a configuration profile to configure "Allow USB Restricted Mode" to "True" in the management tool. This a supervised-only control.

Note: This control is called "Allow USB accessories while device is locked" in Apple Configurator, and the control logic is opposite to what is listed here. Ensure the MDM policy rule is set correctly (to disable USB accessory connections when the device is locked).

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258360

Rule Version

AIOS-17-012600

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: disable paired Apple Watch.

Rule ID

SV-258360r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Authorizing official (AO) approval is required before an Apple Watch (DOD owned or personally owned) can be paired with a DOD-owned iPhone to ensure the AO has evaluated the risk in having sensitive DOD data transferred to and stored on an Apple Watch in their operational environment.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Determine if the site AO has approved the use of Apple Watch with DOD-owned iPhones. Look for a document showing approval. If not approved, review configuration settings to confirm "Allow Paired Watch" is disabled. If approved, this requirement is not applicable.

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding (if the AO has not approved the use of Apple Watch for unmanaged data transfer).

If the iPhone or iPad being reviewed is supervised by the MDM, follow these procedures:

This check procedure is performed on both the device management tool and the iPhone.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow Paired Watch" is unchecked.

On the iPhone:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Paired Apple Watch not allowed" is listed.

If the AO has not approved pairing an Apple Watch with a DOD-owned iPhone and "Paired Apple Watch not allowed" is not listed both in the management tool and on the Apple device, this is a finding.

Check System

C-62101r927761_chk

Fix Reference

F-62025r927762_fix

Fix Text

If the AO has not approved the use of Apple Watch with DOD-owned iPhones, install a configuration profile to disable the Apple Watch control in the management tool. This a supervised-only control.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258361

Rule Version

AIOS-17-012650

Rule Title

Apple iOS/iPadOS 17 must implement the management setting: approved Apple Watches must be managed by an MDM.

Rule ID

SV-258361r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Determine if the site AO has approved the use of Apple Watch with DOD-owned iPhones. Look for a document showing approval. If not approved, this requirement is not applicable.

If approved, verify on the MDM server that the Apple Watch is being managed by the MDM. Have the MDM system administrator show that the Apple Watch is being managed by the MDM.

If the AO has approved pairing an Apple Watch with a DOD-owned iPhone and the Apple Watch is not being managed by the site MDM server, this is a finding.

Note: The iPhone paired to the Apple Watch must be supervised for the MDM to manage the Apple Watch.

Check System

C-62102r927764_chk

Fix Reference

F-62026r927765_fix

Fix Text

If the AO has not approved the use of Apple Watch with DOD-owned iPhones, this requirement is not applicable.

If the AO has approved the use of Apple Watch with DOD-owned iPhones, enroll the Apple Watch in MDM management.

Note: The iPhone paired to the Apple Watch must be supervised for the MDM to manage the Apple Watch.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258362

Rule Version

AIOS-17-012700

Rule Title

Apple iOS/iPadOS 17 must disable "Password AutoFill" in browsers and applications.

Rule ID

SV-258362r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

The AutoFill functionality in browsers and applications allows the user to complete a form that contains sensitive information, such as PII, without previous knowledge of the information. By allowing the use of the AutoFill functionality, an adversary who learns a user's iPhone and iPad passcode, or who otherwise is able to unlock the device, may be able to further breach other systems by relying on the AutoFill feature to provide information unknown to the adversary. By disabling the AutoFill functionality, the risk of an adversary gaining further information about the device's user or compromising other systems is significantly mitigated.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Password AutoFill is not allowed" is disabled.

This check procedure is performed on both the iOS/iPadOS device management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS/iPadOS management tool, verify "Password AutoFill is not allowed" is unchecked.

On the iPhone/iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Password AutoFill is not allowed" is listed.

If "Password AutoFill is not allowed" is not enabled in the iOS/iPadOS management tool and on the Apple device, this is a finding.

Check System

C-62103r927767_chk

Fix Reference

F-62027r927768_fix

Fix Text

Install a configuration profile to disable allow Password AutoFill in the management tool. This a supervised-only control.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258363

Rule Version

AIOS-17-012800

Rule Title

Apple iOS/iPadOS 17 must disable allow setting up new nearby devices.

Rule ID

SV-258363r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

This control allows Apple device users to request passwords from nearby devices. This could lead to a compromise of the device password with an unauthorized person or device. DOD Apple device passwords must not be shared.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Allow setting up new nearby devices" is disabled.

This check procedure is performed on both the iOS/iPadOS device management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS/iPadOS management tool, verify "Proximity setup to a new device is not allowed" is unchecked.

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Proximity setup to a new device is not allowed" is not listed.

If "Proximity setup to a new device is not allowed" is disabled in the iOS/iPadOS management tool and on the Apple device, this is a finding.

Check System

C-62104r927770_chk

Fix Reference

F-62028r927771_fix

Fix Text

Install a configuration profile to disable allow setting up new nearby devices in the management tool. This a supervised-only control.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258364

Rule Version

AIOS-17-012900

Rule Title

Apple iOS/iPadOS 17 must disable password proximity requests.

Rule ID

SV-258364r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

This control allows one Apple device to be notified to share its password with a nearby device. This could lead to a compromise of the device password with an unauthorized person or device. DOD Apple device passwords must not be shared.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Allow Password Proximity Requests" is disabled.

This check procedure is performed on both the device management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow Password Proximity Requests" is unchecked.

On the iPhone and iPad device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Proximity password requests not allowed" is listed.

If "Proximity password requests not allowed" is not listed in the management tool and on the Apple device, this is a finding.

Check System

C-62105r935482_chk

Fix Reference

F-62029r935483_fix

Fix Text

Install a configuration profile to disable "allow password proximity requests" in the management tool. This is a supervised-only control.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258365

Rule Version

AIOS-17-013000

Rule Title

Apple iOS/iPadOS 17 must disable password sharing.

Rule ID

SV-258365r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

This control allows sharing passwords between Apple devices using AirDrop. This could lead to a compromise of the device password with an unauthorized person or device. DOD Apple device passwords must not be shared.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Password Sharing is not allowed" is enabled.

This check procedure is performed on both the device management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS/iPadOS management tool, verify "Password Sharing is not allowed" is checked.

On the iPhone/iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Password Sharing is not allowed" is listed.

If "Password Sharing is not allowed" is not enabled in the management tool and on the Apple device, this is a finding.

Check System

C-62106r927776_chk

Fix Reference

F-62030r927777_fix

Fix Text

Install a configuration profile to disable allow password proximity sharing in the management tool. This a supervised-only control.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258367

Rule Version

AIOS-17-013200

Rule Title

The Apple iOS/iPadOS 17 must be supervised by the MDM.

Rule ID

SV-258367r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

When an iOS/iPadOS is not supervised, the DOD mobile service provider cannot control when new iOS/iPadOS updates are installed on site-managed devices. Most updates should be installed immediately to mitigate new security vulnerabilities, while some sites need to test each update prior to installation to ensure critical missions are not adversely impacted by the update.

Several password and data protection controls can be implemented only when an Apple device is supervised.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm site-managed iOS/iPadOS devices are supervised.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify all managed Apple devices are supervised (verification procedure will vary by MDM product).

Note: If the Apple device is not managed by an MDM and supervision is set up via Apple Configurator, this procedure is not applicable.

On the iPhone and iPad:

1. Open the Settings app.

2. Verify a message similar to the following appears on the screen: "This iPad is supervised by (name of site DOD mobile service provider)."

If site-managed iOS/iPadOS devices are not supervised, this is a finding.

Check System

C-62108r927782_chk

Fix Reference

F-62032r927783_fix

Fix Text

Use one of the following methods to supervise iOS and iPadOS devices managed by the DOD mobile service provider.

Method 1:

- Register all current and new iOS and iPadOS devices in the DOD mobile service provider's Automated Device Management/Apple Business Manager (ABM) account.

- Enable supervision of managed iOS/iPadOS devices in the MDM.

Method 2:

- Configure each iOS/iPadOS device using the Apple Configurator tool for Supervision.

- This method is usually only appropriate when MDM management of the DOD Apple device is not appropriate or an older device cannot be registered in ABM.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258370

Rule Version

AIOS-17-013500

Rule Title

Apple iOS must implement the management setting: not allow a user to remove Apple iOS configuration profiles that enforce DOD security requirements.

Rule ID

SV-258370r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Configuration profiles define security policies on Apple iOS devices. If a user is able to remove a configuration profile, the user can then change the configuration that had been enforced by that policy. Relaxing security policies may introduce vulnerabilities the profiles had mitigated. Configuring a profile to never be removed mitigates this risk.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Review configuration settings to confirm configuration profiles are not removable.

This check procedure is performed on both the Apple iOS management tool and the Apple iOS device. The procedures below assume the site is not enrolled in Apple's Automatic Device Enrollment and are not applicable to devices under MDM management.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS management tool, verify "Security" is set to "Never" and "Automatically Remove Profile" is set to "Never".

On the Apple iOS device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap each Configuration Profile from the Apple iOS management tool that contains the restrictions for the device.

5. Verify the "Remove Profile" button is not present.

If on the Apple iOS management tool or the iOS device the "Remove Profile" button is available on the configuration profile, this is a finding.

Check System

C-62111r927791_chk

Fix Reference

F-62035r927792_fix

Fix Text

Configure the Apple iOS configuration profile so that it can never be removed.

The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider.

When using Apple Configurator, under "General Security", configure "Security" to "Never" and "Automatically Remove Profile" to "Never".

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

PP-MDF-993300

Group ID

V-258371

Rule Version

AIOS-17-014300

Rule Title

Apple iOS/iPadOS 17 must disable "Allow network drive access in Files access".

Rule ID

SV-258371r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Allowing network drive access by the Files app could lead to the introduction of malware or unauthorized software into the DOD IT infrastructure and compromise of sensitive DOD information and systems.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

This check procedure is performed on both the device management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow network drive access in Files access" is unchecked.

On the iPhone and iPad device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Network drives not accessible in Files app" is listed.

If "Allow network drive access in Files access" is not disabled in the management tool and "Network drives not accessible in Files app" is not listed in Profile Restrictions on the Apple device, this is a finding.

Check System

C-62112r927794_chk

Fix Reference

F-62036r927795_fix

Fix Text

Install a configuration profile to disable "Allow network drive access in Files access".

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258372

Rule Version

AIOS-17-014400

Rule Title

Apple iOS/iPadOS 17 must disable connections to Siri servers for the purpose of dictation.

Rule ID

SV-258372r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. Dictation information could contain sensitive DOD information and therefore should not leave the DOD control.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Disable connections to Siri servers for the purpose of dictation" is disabled.

This check procedure is performed on the device management tool.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Disable connections to Siri servers for the purpose of dictation" is checked.

If connections to Siri servers are not disabled for dictation, this is a finding.

Check System

C-62113r927797_chk

Fix Reference

F-62037r927798_fix

Fix Text

Configure the Apple iOS configuration profile to disable connections to Siri servers for the purpose of dictation. This a supervised-only control.

The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider.

In the MDM console, select "disable connections to Siri servers for the purpose of dictation".

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258373

Rule Version

AIOS-17-014500

Rule Title

Apple iOS/iPadOS 17 must disable connections to Siri servers for the purpose of translation.

Rule ID

SV-258373r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. Translation information could contain sensitive DOD information and therefore should not leave the DOD control.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This check procedure is performed on the device management tool.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Disable connections to Siri servers for the purpose of translation" is checked.

If connections to Siri servers are not disabled for translation, this is a finding.

Check System

C-62114r927800_chk

Fix Reference

F-62038r927801_fix

Fix Text

Configure the Apple iOS configuration profile to disable connections to Siri servers for the purpose of translation.

The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider.

In the MDM console, select "disable connections to Siri servers for the purpose of translation".

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-993300

Group ID

V-258374

Rule Version

AIOS-17-014600

Rule Title

Apple iOS/iPadOS 17 must disable copy/paste of data from managed to unmanaged applications.

Rule ID

SV-258374r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Require managed pasteboard" is set to "True".

If "Require managed pasteboard" is not set to "True", this is a finding.

Check System

C-62115r927803_chk

Fix Reference

F-62039r927804_fix

Fix Text

Configure the Apple iOS configuration profile to disable copy/paste of data from managed to unmanaged applications.

The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider.

In the MDM console, set "Require managed pasteboard" to "True".

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-333350

Group ID

V-258375

Rule Version

AIOS-17-014700

Rule Title

Apple iOS/iPadOS 17 must have DOD root and intermediate PKI certificates installed.

Rule ID

SV-258375r959010_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

DOD root and intermediate PKI certificates are used to verify the authenticity of PKI certificates of users and web services. If the user is allowed to remove root and intermediate certificates, the user could allow an adversary to falsely sign a certificate in such a way that it could not be detected. Restricting the ability to remove DOD root and intermediate PKI certificates to the Administrator mitigates this risk.

SFR ID: FMT_MOF_EXT.1.2 #47

Documentable

False

Check Content

Verify DOD intermediate and root certificates have been installed on Apple devices.

In the iOS management tool, verify the DOD intermediate and root certificates are installed on the Apple device.

On the iPhone and iPad device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Tap "More Details".

7. Verify the DOD intermediate and root certificates are listed.

If DOD intermediate and root certificates are not installed on the Apple device, this is a finding.

Check System

C-62116r927806_chk

Fix Reference

F-62040r927807_fix

Fix Text

Install DOD intermediate and root certificates on managed mobile devices using 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

PP-MDF-993300

Group ID

V-258376

Rule Version

AIOS-17-014800

Rule Title

Apple iOS/iPadOS 17 must be configured to disable "Auto Unlock" of the iPhone by an Apple Watch.

Rule ID

SV-258376r1015682_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Auto Unlock allows an Apple Watch to automatically unlock an iPhone or Mac when in close proximity (not available for iPad). This feature allows the iPhone/Mac to be unlocked without the user entering the device passcode, which may lead to unauthorized users access to the iPhone/Mac and sensitive DOD data. This control is not applicable if the authorizing official (AO) has approved the use of Apple Watches.

SFR ID: FMT_MOF_EXT.1.2 #47

Documentable

False

Check Content

Determine if the site AO has approved the use of Apple Watch with DOD-owned iPhones. Look for a document showing approval. If not approved, review configuration settings to confirm "Allow Auto Unlock" is disabled. If approved, this requirement is not applicable.

This check procedure is performed on the device management tool.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow auto unlock" is not checked.

If Allow auto unlock is enabled, this is a finding.

This requirement will become "Supervised only" in a future iOS/iPadOS release.

Check System

C-62117r927809_chk

Fix Reference

F-62041r927810_fix

Fix Text

If the AO has not approved the use of Apple Watch with DOD-owned iPhones, configure the Apple iOS configuration profile to disable "Allow auto unlock".

The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider.

In the MDM console, set "Allow auto unlock" to "False".

This requirement will become "Supervised only" in a future iOS/iPadOS release.

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-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-002235

Prevent non-privileged users from executing privileged functions.

800-53 Rev. 4 :: AC-6 (10)
800-53 Rev. 5 :: AC-6 (10)

Group Title

PP-MDF-333250

Group ID

V-259186

Rule Version

AIOS-17-003000

Rule Title

Apple iOS/iPadOS 17 must not allow backup to remote systems (iCloud).

Rule ID

SV-259186r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_MOF_EXT.1.2 #40

Documentable

False

Check Content

Note: This requirement is not applicable if the authorizing official (AO) has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts. The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store.

Review configuration settings to confirm iCloud Backup is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow iCloud backup" is unchecked.

Alternatively, verify the text "<key>allowCloudBackup</key> <false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the policy.

5. Tap "Restrictions".

6. Verify "iCloud backup not allowed".

If "Allow iCloud backup" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudBackup</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "iCloud backup not allowed", this is a finding.

Check System

C-62926r935526_chk

Fix Reference

F-62835r935527_fix

Fix Text

Install a configuration profile to disable iCloud backup.

Identities

CCI-001090

Prevent unauthorized and unintended information transfer via shared system resources.

800-53 :: SC-4
800-53 Rev. 4 :: SC-4
800-53 Rev. 5 :: SC-4
800-53A :: SC-4.1

Group Title

PP-MDF-333250

Group ID

V-259187

Rule Version

AIOS-17-003200

Rule Title

Apple iOS/iPadOS 17 must not allow backup to remote systems (iCloud document and data synchronization).

Rule ID

SV-259187r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_MOF_EXT.1.2 #40

Documentable

False

Check Content

Review configuration settings to confirm "Allow iCloud documents & data" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

This requirement will become "Supervised only" in a future iOS/iPadOS release.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow iCloud documents & data" is unchecked.

Alternatively, verify the text "<key>allowCloudDocumentSync</key> <false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the policy.

5. Tap "Restrictions".

6. Verify "Documents in the Cloud not allowed" is listed.

Note: This also verifies that iCloud Drive and iCloud Photo Library are disabled.

If "Allow iCloud documents & data" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudDocumentSync</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Documents in the Cloud not allowed", this is a finding.

Check System

C-62927r935529_chk

Fix Reference

F-62836r935530_fix

Fix Text

Install a configuration profile to disable iCloud documents and data.

This requirement will become "Supervised only" in a future iOS/iPadOS release.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-333250

Group ID

V-259188

Rule Version

AIOS-17-003300

Rule Title

Apple iOS/iPadOS 17 must not allow backup to remote systems (iCloud Keychain).

Rule ID

SV-259188r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_MOF_EXT.1.2 #40

Documentable

False

Check Content

Review configuration settings to confirm iCloud keychain is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow iCloud keychain" is unchecked.

Alternatively, verify the text "<key>allowCloudKeychainSync</key><false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the management policy.

5. Verify "iCloud Keychain not allowed" is listed.

If "Allow iCloud keychain" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudKeychainSync</key><true/>" appears in the configuration profile, or "iCloud Keychain not allowed" is not listed on the iPhone and iPad, this is a finding.

Check System

C-62928r935532_chk

Fix Reference

F-62837r935533_fix

Fix Text

Install a configuration profile to disable iCloud keychain.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-333250

Group ID

V-259189

Rule Version

AIOS-17-003450

Rule Title

Apple iOS/iPadOS 17 must not allow backup to remote systems (Cloud Photo Library).

Rule ID

SV-259189r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_MOF_EXT.1.2 #40

Documentable

False

Check Content

Review configuration settings to confirm "Allow Cloud Photo Library" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow Cloud Photo Library" is unchecked.

Alternatively, verify the text "<key>allowCloudPhotoLibrary</key><false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Cloud Photos not allowed" is listed.

If "Allow Cloud Photo Library" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudPhotoLibrary</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Cloud Photos not allowed", this is a finding.

This requirement will become "Supervised only" in a future iOS/iPadOS release.

Check System

C-62929r935535_chk

Fix Reference

F-62838r935536_fix

Fix Text

Install a configuration profile to disable Cloud Photo Library.

This requirement will become "Supervised only" in a future iOS/iPadOS release.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-333250

Group ID

V-259190

Rule Version

AIOS-17-003500

Rule Title

Apple iOS/iPadOS 17 must not allow backup to remote systems (iCloud Photo Sharing, also known as Shared Stream or Shared Photo Stream).

Rule ID

SV-259190r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_MOF_EXT.1.2 #40

Documentable

False

Check Content

Review configuration settings to confirm "Allow Shared Stream" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow Shared Stream" is unchecked.

Alternatively, verify the text "<key>allowSharedStream</key><false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Shared Streams not allowed" is listed.

If "AllowShared Photo Stream" is checked in the Apple iOS/iPadOS management tool, "<key>allowSharedStream</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Shared Streams not allowed", this is a finding.

This requirement will become "Supervised only" in a future iOS/iPadOS release.

Check System

C-62930r935538_chk

Fix Reference

F-62839r935539_fix

Fix Text

Install a configuration profile to disable "Allow Shared PhotoStream".

This requirement will become "Supervised only" in a future iOS/iPadOS release.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-333250

Group ID

V-259191

Rule Version

AIOS-17-003600

Rule Title

Apple iOS/iPadOS 17 must not allow backup to remote systems (managed applications data stored in iCloud).

Rule ID

SV-259191r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_MOF_EXT.1.2 #40

Documentable

False

Check Content

Review configuration settings to confirm "Allow managed apps to store data in iCloud" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow managed apps to store data in iCloud" is unchecked.

Alternatively, verify the text "<key>allowManagedAppsCloudSync</key> <false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Managed apps cloud sync not allowed" is listed.

If "Allow managed apps to store data in iCloud" is checked in the Apple iOS/iPadOS management tool, "<key>allowManagedAppsCloudSync</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Managed apps cloud sync not allowed", this is a finding.

Check System

C-62931r935541_chk

Fix Reference

F-62840r935542_fix

Fix Text

Install a configuration profile to prevent DOD applications from storing data in iCloud.

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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

PP-MDF-333250

Group ID

V-259192

Rule Version

AIOS-17-003700

Rule Title

Apple iOS/iPadOS 17 must not allow backup to remote systems (enterprise books).

Rule ID

SV-259192r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

SFR ID: FMT_MOF_EXT.1.2 #40

Documentable

False

Check Content

Review configuration settings to confirm "Allow backup of enterprise books" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow backup of enterprise books" is unchecked.

Alternatively, verify the text "<key>allowEnterpriseBookBackup</key> <false/>" appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "Backing up enterprise books not allowed" is listed.

If "Allow backup of enterprise books" is checked in the Apple iOS/iPadOS management tool, "<key>allowEnterpriseBookBackup</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Backing up enterprise books not allowed", this is a finding.

Check System

C-62932r935544_chk

Fix Reference

F-62841r935545_fix

Fix Text

Install a configuration profile to prevent backup of enterprise books that could contain DOD sensitive information.

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)

CCI-002110

The organization defines the information system account types that support the organizational missions/business functions.

800-53 Rev. 4 :: AC-2 a

Group Title

PP-MDF-333240

Group ID

V-259193

Rule Version

AIOS-17-013300

Rule Title

Apple iOS/iPadOS 17 must disable "Allow USB drive access in Files app" if the authorizing official (AO) has not approved the use of DOD-approved USB storage drives with iOS/iPadOS devices.

Rule ID

SV-259193r958524_rule

Rule Severity

● Medium

Rule Weight

10.0

Vuln Discussion

Unauthorized use of USB storage drives could lead to the introduction of malware or unauthorized software into the DOD IT infrastructure and compromise of sensitive DOD information and systems.

SFR ID: FMT_SMF_EXT.1.1 #47

Documentable

False

Check Content

This requirement is not applicable if the AO has approved the use of USB drives to load files to Apple devices. The approval must be in writing and include which USB storage devices are approved for use.

If the AO has not approved the use of USB drives to load files to Apple devices, use the following procedures to verify compliance.

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Allow USB drive access in Files app" is disabled.

This check procedure is performed on both the device management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow USB drive access in Files app" is unchecked.

On the iPhone and iPad device:

1. Open the Settings app.

2. Tap "General".

3. Tap "VPN & Device Management".

4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.

5. Tap "Restrictions".

6. Verify "USB drives not accessible in Files app" is listed.

If "Allow USB drive access in Files app" is not disabled in the management tool and "USB drives not accessible in Files app" is not listed in the Restrictions profile on the Apple device, this is a finding.

Check System

C-62933r935547_chk

Fix Reference

F-62842r935548_fix

Fix Text

If the AO has not approved the use of USB drives to load files to Apple devices, install a configuration profile to disable "Allow USB drive access in Files app".

Identities

CCI-000097

Restrict the use of organization-controlled portable storage devices by authorized individuals on external systems using organization-defined restrictions.

800-53 :: AC-20 (2)
800-53 Rev. 4 :: AC-20 (2)
800-53 Rev. 5 :: AC-20 (2)
800-53A :: AC-20 (2).1

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