V-286317

Discussion

Many mobile devices display notifications on the lock screen so that 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 MOS to not send notifications to the lock screen mitigates this risk. The requirement statement specifies the DoW-mandated configuration of this MDFPP element. The STIG author must select "all notifications" if there is no other means to administratively restrict applications from issuing notifications in the locked state where those notifications could include DoW sensitive information. SFR ID: FMT_SMF_EXT.1.1 #18

Check Content

Review the configuration to determine if the Samsung Android devices are not displaying (work environment) notifications when the device is locked.

Notifications of incoming phone calls are acceptable even when the device is locked.

This validation procedure is performed on both the management tool administration console and the Samsung Android device.

On the management tool, in the work profile restrictions section, verify "Unredacted Notifications" is set to "Disallow".

COPE:

On the Samsung Android device: 
1. Open Settings >> Notifications >> Lock screen.
2. Verify configuration of "Sensitive work profile notifications" is disabled.

If on the management tool "Unredacted Notifications" is not set to "Disallow", or on the Samsung Android device "Sensitive work profile notifications" is not disabled, this is a finding.

COBO:

On the Samsung Android device: 
1. Open Settings >> Notifications.
2. Verify "Lock screen" menu is disabled.

If on the management tool "Unredacted Notifications" is not set to "Disallow", or on the Samsung Android device "Notifications" menu is not disabled, this is a finding.