The LG Android 5.0 platform must be configured to implement the management setting: disable Allow System Time Changes.

From LG Android 5.x Interim Security Configuration Guide

Part of PP-MDF-991000

Associated with: CCI-000366

SV-73273r1_rule The LG Android 5.0 platform must be configured to implement the management setting: disable Allow System Time Changes.

Vulnerability discussion

Determining the correct time a particular application event occurred on a system is critical when conducting forensic analysis and investigating system events. Periodically synchronizing internal clocks with an authoritative time source is needed in order to correctly correlate the timing of events that occur across the enterprise. The three authoritative time sources for mobile operating systems are an authoritative time server that is synchronized with redundant United States Naval Observatory (USNO) time servers as designated for the appropriate DoD network (NIPRNet or SIPRNet), or the Global Positioning System (GPS), or the wireless carrier.Time stamps generated by the audit system in mobile operating systems shall include both date and time. The time may be expressed in Coordinated Universal Time (UTC), a modern continuation of Greenwich Mean Time (GMT), or local time with an offset from UTC.SFR ID: FMT_SMF.1.1 #42

Check content

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 System Time Changes" check box. 2. Verify the setting is disabled. On the LG Android device: 1. Open the device settings. 2. Select "Date and time". 3. Verify the "Auto date and time" check box is checked. 4. Verify a user cannot deselect the "Auto date and time" check box. If either the "Allow System Time Changes" is not disabled in the MDM administration console; or the "Auto date and time" check box is not selected on the device; or if it is possible to deselect this option on the device, this is a finding.

Fix text

On the MDM Console, disable "Allow System Time Changes".

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