Title

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

Discussion

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.

Check Content

Check the time zone setting by the following command: # echo $TZ UTC If the result is not UTC or GMT, this is a finding.

Fix Text

Change time zone setting to either UTC or GMT, then reboot the system for the setting to take effect. # chtz UTC Or change time zone to GMT # chtz GMT The system must be rebooted for the change to take affect: # reboot

Additional Identifiers

Rule ID: SV-215255r877383_rule

Vulnerability ID: V-215255

Group Title: SRG-OS-000359-GPOS-00146

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.