AIX must record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-91527	AIX7-00-002038	SV-101625r1_rule		Medium

Description
If time stamps are not consistently applied and there is no common time reference, it is difficult to perform forensic analysis. Time stamps generated by AIX include date and time. Time is commonly expressed in Coordinated Universal Time (UTC), a modern continuation of Greenwich Mean Time (GMT), or local time with an offset from UTC.

STIG	Date
IBM AIX 7.x Security Technical Implementation Guide	2020-02-24

Details

Check Text ( C-90681r1_chk )
Check the time zone setting by the following command: # echo $TZ UCT If the result is not UCT or GMT, this is a finding.

Fix Text (F-97725r1_fix)
Change time zone setting to either UCT or GMT, then reboot the system for the setting to take effect. # chtz UCT Or change time zone to GMT # chtz GMT then # reboot