The Samsung Android 7 with Knox must be configured to not allow backup of [all applications, configuration data] to locally connected systems.

From Samsung Android OS 7 with Knox 2.x Security Technical Implementation Guide

Part of PP-MDF-301220

Associated with: CCI-000097

SV-91251r1_rule The Samsung Android 7 with Knox must be configured to not allow backup of [all applications, configuration data] to locally connected systems.

Vulnerability discussion

Data on mobile devices is protected by numerous mechanisms, including user authentication, access control, and cryptography. When the data is backed up to an external system (either locally connected or cloud-based), many if not all of these mechanisms are no longer present. This leaves the backed up data vulnerable to attack. Disabling backup to external systems mitigates this risk.SFR ID: FMT_SMF_EXT.1.1 #40

Check content

Review Samsung Android 7 with Knox configuration settings to determine if the capability to back up to a locally connected system has been disabled. This validation procedure is performed on both the MDM Administration Console and the Samsung Android 7 with Knox device. On the MDM console, do the following: 1. Ask the MDM administrator to display the "Disable USB Media Player" checkbox in the "Android Restrictions" rule. 2. Verify the "Disable USB Media Player" checkbox is selected. Note: Disabling USB Media Player will also disable USB MTP, USB mass storage, and USB vendor protocol (Smart Switch, KIES). On the Samsung Android 7 with Knox device, connect the device to a PC USB connection. Note: Do not use a DoD network-managed PC for this test! On the PC: 1. Install and launch Samsung Smart Switch (Note: Samsung KIES for older devices) on the PC. 2. Verify the device does not connect with the Samsung Smart Switch program. If the MDM console "Disable USB Media Player" is not set to disabled or on the Samsung Android 7 with Knox device, it connects with the Samsung Smart Switch or KIES program, this is a finding.

Fix text

Configure the Samsung Android 7 with Knox to disable backup to locally connected systems. On the MDM console, select the "Disable USB Media Player" checkbox in the "Android Restrictions" rule. Note: Disabling USB Media Player will also disable USB MTP, USB mass storage, and USB vendor protocol (Smart Switch, KIES).

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