The Samsung Knox for Android container must be configured to implement the management setting: disable Move Files from Container to Personal.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-56139	KNOX-39-020500	SV-70393r1_rule		Medium

Description
Allowing movement of files between the container and personal side will result in both personal data and sensitive DoD data being placed in the same space. This can potentially result in DoD data being transmitted to non-authorized recipients via personal email accounts or social applications, or transmission of malicious files to DoD accounts. Disabling this feature mitigates this risk. SFR ID: FMT_SMF.1.1 #42

Description

Allowing movement of files between the container and personal side will result in both personal data and sensitive DoD data being placed in the same space. This can potentially result in DoD data being transmitted to non-authorized recipients via personal email accounts or social applications, or transmission of malicious files to DoD accounts. Disabling this feature mitigates this risk. SFR ID: FMT_SMF.1.1 #42

STIG	Date
Samsung Android (with Knox 2.x) STIG	2015-05-20

Details

Check Text ( C-56709r1_chk )
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 "Move Files from Container to Personal" setting in the "Android Knox Container -> Container Restrictions" rule. 2. Verify the setting is disabled. On the Samsung Knox for Android device: 1. Open the Knox Container. 2. Select "My Files" application. 3. Select a file by long pressing a selection. 4. Select settings. 5. Select "Move to Personal mode". 6. Verify that this operation is blocked. If the "Move Files from Container to Personal" configuration in the MDM console is enabled, or if the user is able to successfully move the selected file to the personal space, this is a finding.

Check Text ( C-56709r1_chk )

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 "Move Files from Container to Personal" setting in the "Android Knox Container -> Container Restrictions" rule.
2. Verify the setting is disabled.

On the Samsung Knox for Android device:
1. Open the Knox Container.
2. Select "My Files" application.
3. Select a file by long pressing a selection.
4. Select settings.
5. Select "Move to Personal mode".
6. Verify that this operation is blocked.

If the "Move Files from Container to Personal" configuration in the MDM console is enabled, or if the user is able to successfully move the selected file to the personal space, this is a finding.

Fix Text (F-61015r1_fix)
Configure the mobile operating system to disable Move Files from Container to Personal. On the MDM Administration Console, disable the "Move Files from Container to Personal" setting in the "Android Knox Container -> Container Restrictions" rule.