The Samsung Knox for Android platform must not allow backup to locally connected systems.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-61213	KNOX-35-024200	SV-75693r1_rule		Medium

Description
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

Description

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

STIG	Date
Samsung Android OS 5 with Knox 2.0 Security Technical Implementation Guide	2016-02-24

Details

Check Text ( C-62169r1_chk )
This validation procedure is performed on both the MDM Administration Console and the PC. Check whether the appropriate setting is configured on the MDM Administration Console: 1. Ask the MDM administrator to display the "Disable USB Media Player" check box in the "Android Restrictions" rule. 2. Verify the "Disable USB Media Player" check box is selected. Note: Disabling USB Media Player will also disable USB MTP, USB mass storage, USB vendor protocol (KIES). On the Samsung Knox for Android device: 1. 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 KIES on the PC. 2. Verify the device does not connect with the Samsung KIES program. If the specified setting is not set to the appropriate value, or if the device is connects with the Samsung KIES program, this is a finding.

Check Text ( C-62169r1_chk )

This validation procedure is performed on both the MDM Administration Console and the PC.

Check whether the appropriate setting is configured on the MDM Administration Console:
1. Ask the MDM administrator to display the "Disable USB Media Player" check box in the "Android Restrictions" rule.
2. Verify the "Disable USB Media Player" check box is selected.

Note: Disabling USB Media Player will also disable USB MTP, USB mass storage, USB vendor protocol (KIES).

On the Samsung Knox for Android device:
1. 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 KIES on the PC.
2. Verify the device does not connect with the Samsung KIES program.

If the specified setting is not set to the appropriate value, or if the device is connects with the Samsung KIES program, this is a finding.

Fix Text (F-67073r1_fix)
Configure the MOS to disable backup to locally connected systems. Configure the mobile operating system to disable USB KIES. On the MDM Administration Console, select the "Disable USB Media Player" check box in the "Android Restrictions" rule. Note: Disabling USB Media Player will also disable USB MTP, USB mass storage, USB vendor protocol (KIES).