CCI-000060 in U Apple iOS-iPadOS 17 MDFPP 3-3 BYOAD V1

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UNCLASSIFIED
Group Title
PP-MDF-333080
Group ID
V-259771
Rule Version
AIOS-17-707500
Rule Title
Apple iOS/iPadOS 17 must be configured to not display notifications when the device is locked.
Rule ID
SV-259771r943638_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-63507r943636_chk
Fix Reference
F-63414r943637_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 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-259772
Rule Version
AIOS-17-707600
Rule Title
Apple iOS/iPadOS 17 must not display notifications (calendar information) when the device is locked.
Rule ID
SV-259772r943641_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 "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-63508r943639_chk
Fix Reference
F-63415r943640_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
UNCLASSIFIED