Google 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.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-228584	GOOG-11-002300	SV-228584r510289_rule		Medium

Description
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 non-password 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

Description

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 non-password 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

STIG	Date
Google Android 11 COBO Security Technical Implementation Guide	2020-09-18

Details

Check Text ( C-30819r505577_chk )
Review device configuration settings to confirm that trust agents are disabled. This procedure is performed on both the EMM Administration console and the Google 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 Google 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.

Check Text ( C-30819r505577_chk )

Review device configuration settings to confirm that trust agents are disabled.

This procedure is performed on both the EMM Administration console and the Google 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 Google 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 (F-30796r505578_fix)
Configure Google 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.