Microsoft Android 11 must be configured to not allow backup of all applications and configuration data to remote systems.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-255217	MSFT-11-003900	SV-255217r870830_rule		Medium

Description
Backups to remote systems (including cloud backup) can leave data vulnerable to breach on the external systems, which often offer less protection than the Microsoft Android device. Where the remote backup involves a cloud-based solution, the backup capability is often used to synchronize data across multiple devices. In this case, DOD devices may synchronize DOD sensitive information to a user's personal device or other unauthorized computers that are vulnerable to breach. Disallowing remote backup mitigates this risk. SFR ID: FMT_SMF_EXT.1.1 #40

Description

Backups to remote systems (including cloud backup) can leave data vulnerable to breach on the external systems, which often offer less protection than the Microsoft Android device. Where the remote backup involves a cloud-based solution, the backup capability is often used to synchronize data across multiple devices. In this case, DOD devices may synchronize DOD sensitive information to a user's personal device or other unauthorized computers that are vulnerable to breach. Disallowing remote backup mitigates this risk. SFR ID: FMT_SMF_EXT.1.1 #40

STIG	Date
Microsoft Android 11 COPE Security Technical Implementation Guide	2022-11-14

Details

Check Text ( C-58830r870751_chk )
Review Microsoft Android device configuration settings to determine if the capability to back up to a remote system has been disabled. Note: Since personal accounts cannot be added to the work profile (MSFT-11-009200), this control only impacts personal profile accounts. Site can allow backup based on local policy. This validation procedure is performed on both the EMM Administration console and the Android 11 device. On the EMM console: 1. Open User restrictions. 2. Verify that "Disallow backup service" is toggled to "Off". On the Microsoft Android 11 device: 1. Go to Settings >> System. 2. Ensure Backup is set to "Off". If the EMM console device policy is not set to disable the capability to back up to a remote system or on the Android 11 device, the device policy is not set to disable the capability to back up to a remote system, this is a finding.

Check Text ( C-58830r870751_chk )

Review Microsoft Android device configuration settings to determine if the capability to back up to a remote system has been disabled.

Note: Since personal accounts cannot be added to the work profile (MSFT-11-009200), this control only impacts personal profile accounts. Site can allow backup based on local policy.

This validation procedure is performed on both the EMM Administration console and the Android 11 device.

On the EMM console:
1. Open User restrictions.
2. Verify that "Disallow backup service" is toggled to "Off".

On the Microsoft Android 11 device:
1. Go to Settings >> System.
2. Ensure Backup is set to "Off".

If the EMM console device policy is not set to disable the capability to back up to a remote system or on the Android 11 device, the device policy is not set to disable the capability to back up to a remote system, this is a finding.

Fix Text (F-58774r870752_fix)
Configure the Microsoft Android 11 device to disable backup to remote systems (including commercial clouds). Note: On a Restrictions, data in the work profile cannot be backed up by default. On the EMM console: 1. Open "Set user restrictions". 2. Ensure "Enable backup service" is not selected. Note: Since personal accounts cannot be added to the work profile (MSFT-11-009200), this control only impacts personal profile accounts. Site can allow backup based on local policy.

Fix Text (F-58774r870752_fix)

Configure the Microsoft Android 11 device to disable backup to remote systems (including commercial clouds).

Note: On a Restrictions, data in the work profile cannot be backed up by default.

On the EMM console:
1. Open "Set user restrictions".
2. Ensure "Enable backup service" is not selected.

Note: Since personal accounts cannot be added to the work profile (MSFT-11-009200), this control only impacts personal profile accounts. Site can allow backup based on local policy.