The LG Android 5.0 platform must not display notifications with sensitive DoD information when the device is locked: calendar notifications.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-58807	LGA5-20-000600	SV-73237r1_rule		Medium

Description
If the mobile operating system were to display notifications or calendar information on the lock screen, an adversary may be able to gather sensitive data without needing to Unlock the device. This adversary may use this gathered intelligence to plan future attacks and possibly a physical attack. By disabling notifications on the lock screen, this prevents sensitive data from being displayed openly on the device’s lock screen. SFR ID: FMT_MOF.1.1(2) #13

Description

If the mobile operating system were to display notifications or calendar information on the lock screen, an adversary may be able to gather sensitive data without needing to Unlock the device. This adversary may use this gathered intelligence to plan future attacks and possibly a physical attack. By disabling notifications on the lock screen, this prevents sensitive data from being displayed openly on the device’s lock screen. SFR ID: FMT_MOF.1.1(2) #13

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

Details

Check Text ( C-59651r1_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 "Allow Keyguard" setting in the MDM console. 2. Verify "All" is selected in the "Keyguard Disabled" screen. On the LG Android device: 1. Unlock the device 2. Add a calendar event for the current day on the device. 3. Lock the device. 4. Verify no notifications are displayed on the lockscreen of the LG device. If the "All" Keyguard Disabled setting is not disabled, or if the device is able to display notifications, this is a finding.

Check Text ( C-59651r1_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 "Allow Keyguard" setting in the MDM console.
2. Verify "All" is selected in the "Keyguard Disabled" screen.

On the LG Android device:
1. Unlock the device
2. Add a calendar event for the current day on the device.
3. Lock the device.
4. Verify no notifications are displayed on the lockscreen of the LG device.

If the "All" Keyguard Disabled setting is not disabled, or if the device is able to display notifications, this is a finding.

Fix Text (F-64191r1_fix)
Configure the mobile device to disable the keyguard All setting. On the MDM Administration Console, disable "All" for the Keyguard Disabled setting.