The Samsung KNOX for Android platform must be configured to disable automatic updates of system software.

From Samsung Android OS 6 (with KNOX 2.x) Security Technical Implementation Guide

Part of PP-MDF-201031

Associated with: CCI-000366

SV-84265r1_rule The Samsung KNOX for Android platform must be configured to disable automatic updates of system software.

Vulnerability discussion

FOTA allows the user to download and install firmware updates over the air. These updates can include OS upgrades, security patches, bug fixes, new features, and applications. Since the updates are controlled by the carriers, DoD will not have an opportunity to review and update policies prior to update availability to end users. Disabling FOTA will mitigate the risk of allowing users access to applications that could compromise DoD sensitive data. After reviewing the update and adjusting any necessary policies (i.e., disabling applications determined to pose risk), the administrator can re-enable FOTA.SFR ID: FMT_SMF_EXT.1.1 #45

Check content

This validation procedure is performed on both the MDM Administration Console and the Samsung KNOX for Android device. Check whether the appropriate setting is configured on the MDM Administration Console: 1. Ask the MDM administrator to display the "Allow FOTA" setting in the "Android Restrictions" rule. 2. Verify the setting is disabled. On the Samsung KNOX for Android device: 1. Open device settings. 2. Select "About device". 3. Attempt to select "Software update" or "Download updates manually". Note: Location of this menu can vary between models. If the "Allow FOTA" configuration in the MDM console is enabled, or if the user is able to successfully select software update, this is a finding. Note: After reviewing the update and adjusting any necessary policies (i.e., disabling applications determined to pose risk), the administrator can re-enable FOTA.

Fix text

Configure the mobile operating system to disable automatic updates of system software. Configure the mobile operating system to disable FOTA. On the MDM Administration Console, disable the "Allow FOTA" setting in the "Android Restrictions" rule.

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