Samsung Android Workspace must be configured to lock after 15 minutes (or less) of inactivity.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-93779	KNOX-09-000410	SV-103865r1_rule		Medium

Description
The screen lock timeout must be set to a value that helps protect the device from unauthorized access. Having a too-long timeout would increase the window of opportunity for adversaries who gain physical access to the mobile device through loss, theft, etc. Such devices are much more likely to be in an unlocked state when acquired by an adversary, thus granting immediate access to the data on the mobile device. The maximum timeout period of 15 minutes has been selected to balance functionality and security; shorter timeout periods may be appropriate, depending on the risks posed to the mobile device. SFR ID: FMT_SMF_EXT.1.1 #47

Description

The screen lock timeout must be set to a value that helps protect the device from unauthorized access. Having a too-long timeout would increase the window of opportunity for adversaries who gain physical access to the mobile device through loss, theft, etc. Such devices are much more likely to be in an unlocked state when acquired by an adversary, thus granting immediate access to the data on the mobile device. The maximum timeout period of 15 minutes has been selected to balance functionality and security; shorter timeout periods may be appropriate, depending on the risks posed to the mobile device. SFR ID: FMT_SMF_EXT.1.1 #47

STIG	Date
Samsung Android OS 9 with Knox 3.x COPE Use Case KPE(AE) Deployment Security Technical Implementation Guide	2020-02-24

Details

Check Text ( C-93097r1_chk )
Review the Samsung Android Workspace configuration settings to confirm that the Workspace is locked after 15 minutes (or less) of inactivity. This validation procedure is performed on both the MDM Administration console and the Samsung Android device. On the MDM console, for the Workspace, in the "Android lock screen restrictions" group, verify that the "max time to screen lock" is set to "15" minutes. On the Samsung Android device, do the following: 1. Tap any app on the "Workspace" App screen. 2. Refrain from using the device for 15 minutes. 3. If "One Lock" is disabled, verify that the device requires the user to enter the Workspace password to access any app on the "Workspace" App screen. 4. If "One Lock" is enabled, verify that the device requires the user to enter the device unlock password to access the device. If on the MDM console "maximum time to lock" is not set to "15" minutes or less, or the Samsung Android Workspace does not lock after 15 minutes, this is a finding. Note: If "When screen turns off" is selected in the Samsung Android Workspace setting Workspace >> Auto lock Workspace, the Workspace will not lock until the screen turns off, regardless of the maximum lock timeout.

Check Text ( C-93097r1_chk )

Review the Samsung Android Workspace configuration settings to confirm that the Workspace is locked after 15 minutes (or less) of inactivity.

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

On the MDM console, for the Workspace, in the "Android lock screen restrictions" group, verify that the "max time to screen lock" is set to "15" minutes.

On the Samsung Android device, do the following:
1. Tap any app on the "Workspace" App screen.
2. Refrain from using the device for 15 minutes.
3. If "One Lock" is disabled, verify that the device requires the user to enter the Workspace password to access any app on the "Workspace" App screen.
4. If "One Lock" is enabled, verify that the device requires the user to enter the device unlock password to access the device.

If on the MDM console "maximum time to lock" is not set to "15" minutes or less, or the Samsung Android Workspace does not lock after 15 minutes, this is a finding.

Note: If "When screen turns off" is selected in the Samsung Android Workspace setting Workspace >> Auto lock Workspace, the Workspace will not lock until the screen turns off, regardless of the maximum lock timeout.

Fix Text (F-100025r1_fix)
Configure Samsung Android Workspace to lock after 15 minutes (or less) of inactivity. On the MDM console, for the Workspace, in the "Android lock screen restriction" group, set the "max time to screen lock" to "15" minutes.