Title

Microsoft Android 11 must be configured to disable trust agents. Note: This requirement is not applicable (NA) for specific biometric authentication factors included in the product's Common Criteria evaluation. (Cat II impact)

Discussion

Trust agents allow a user to unlock a mobile device without entering a passcode when the mobile device is, for example, connected to a user-selected Bluetooth device or in a user-selected location. This technology would allow unauthorized users to have access to DOD sensitive data if compromised. By not permitting the use of nonpassword authentication mechanisms, users are forced to use passcodes that meet DOD passcode requirements. SFR ID: FMT_SMF_EXT.1.1 #23, FIA_UAU.5.1

Check Content

Review device configuration settings to confirm that trust agents are disabled. This procedure is performed on both the EMM Administration console and the Microsoft Android 11 device. On the EMM console: 1. Open "Lock screen restrictions" section. 2. Select "Personal Profile". 3. Verify that "Disable trust agents" is toggled to "On". 4. Select "Work Profile". 5. Verify that "Disable trust agents" is toggled to "On". On the Microsoft Android 11 device: 1. Open Settings. 2. Tap "Security". 3. Tap "Advanced". 4. Tap "Trust agents". 5. Verify that all listed trust agents are disabled and cannot be enabled. If on the EMM console "disable trust agents" is not selected, or on the Android 11 device a trust agent can be enabled, this is a finding.

Fix Text

Configure Microsoft Android 11 device to disable trust agents. On the EMM console: 1. Open "Lock screen restrictions" section. 2. Select "Personal Profile". 3. Toggle "Disable trust agents" to "On". 4. Select "Work Profile". 5. Toggle "Disable trust agents" to "On".

Additional Identifiers

Rule ID: SV-255178r958478_rule

Vulnerability ID: V-255178

Group Title: PP-MDF-301150

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.