Vulnerability 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 the operating system 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
The time zone must be configured to use Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). To verify run the following command.
# sudo timedatectl status | grep -i "time zone"
Timezone: UTC (UTC, +0000)
If "Timezone" is not set to UTC or GMT, this is a finding.
Fix
To configure the system time zone to use Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT), run the following command replacing [ZONE] with UTC or GMT.
# sudo timedatectl set-timezone [ZONE]