The administrator/MDM must disable USB mass storage mode.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-48321	KNOX-25-009800	SV-61193r1_rule		Medium

Description
This data transfer capability could allow users to transfer sensitive DoD data onto unauthorized USB storage devices, thus leading to the compromise of this DoD data. SFR ID: FMT_SMF.1.1 #42

STIG	Date
Samsung Android (with Knox 1.x) STIG	2014-04-22

Details

Check Text ( C-50753r1_chk )
This validation procedure is performed on both the MDM Administration Console and the Samsung Knox Android device. Check whether the appropriate setting is configured on the MDM Administration Console: 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 checked. On the Samsung Knox Android device: 1. Attempt to connect the device to a PC USB connection. If the specified setting is not set to the appropriate value, or if the device is shown in the PC finder, this is a finding.

Check Text ( C-50753r1_chk )

This validation procedure is performed on both the MDM Administration Console and the Samsung Knox Android device.

Check whether the appropriate setting is configured on the MDM Administration Console:
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 checked.

On the Samsung Knox Android device:
1. Attempt to connect the device to a PC USB connection.

If the specified setting is not set to the appropriate value, or if the device is shown in the PC finder, this is a finding.

Fix Text (F-51929r1_fix)
Configure the mobile device to disable data transfer capabilities for USB mass storage mode. Configure the mobile operating system to disable USB mass storage. On the MDM Administration Console, check the "Disable USB Media Player" checkbox in the "Android Restrictions" rule.