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Check: AIX7-00-002038

IBM AIX 7.x STIG: AIX7-00-002038 (in versions v3 r1 through v2 r8)

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, GMT, or an offset from UTC, this is a finding.

Fix Text

Change time zone setting to UTC, GMT, or an offset from UTC and then reboot the system for the setting to take effect. # chtz UTC Or change time zone to GMT or an offset of UTC. The system must be rebooted for the change to take effect: # reboot

Additional Identifiers

Rule ID: SV-215255r958788_rule

Vulnerability ID: V-215255

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

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-001890	Record time stamps for audit records that use Coordinated Universal Time, have a fixed local time offset from Coordinated Universal Time, or that include the local time offset as part of the time stamp.

Controls

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

Number	Title
AU-8	Time Stamps