The LG Android 5.0 platform must be configured to lock the display after 15 minutes (or less) of inactivity.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-58771	LGA5-10-000200	SV-73201r1_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.1.1 #02

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.1.1 #02

STIG	Date
LG Android 5.x Interim Security Configuration Guide	2015-09-22

Details

Check Text ( C-59615r3_chk )
This validation procedure is performed on both the MDM Administration Console and the LG Android device. Check whether the appropriate setting is configured on the MDM Administration Console: 1. Ask the MDM administrator to display the "Maximum time to lock" setting in the MDM console. 2. Verify the value of the setting is 15 minutes or less. On the LG Android device: 1. Unlock the device 2. Navigate to the screen timeout setting: Settings >> Display >> Screen timeout 3. Stop all activity on the device for 15 minutes. If the "maximum time to lock" setting is not set to 15 minutes, or if the user does not have to unlock the device after 15 minutes of inactivity, this is a finding.

Check Text ( C-59615r3_chk )

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

Check whether the appropriate setting is configured on the MDM Administration Console:
1. Ask the MDM administrator to display the "Maximum time to lock" setting in the MDM console.
2. Verify the value of the setting is 15 minutes or less.

On the LG Android device:
1. Unlock the device
2. Navigate to the screen timeout setting: Settings >> Display >> Screen timeout
3. Stop all activity on the device for 15 minutes.

If the "maximum time to lock" setting is not set to 15 minutes, or if the user does not have to unlock the device after 15 minutes of inactivity, this is a finding.

Fix Text (F-64155r1_fix)
Configure the mobile device to lock the device display after 15 minutes (or less) of inactivity. On the MDM Administration Console, set the "Maximum time to lock" value to 15 minutes (or less).