The audit system must be configured to audit all attempts to alter system time through stime.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-208884	OL6-00-000169	SV-208884r793669_rule		Low

Description
Arbitrary changes to the system time can be used to obfuscate nefarious activities in log files, as well as to confuse network services that are highly dependent upon an accurate system time (such as sshd). All changes to the system time should be audited.

STIG	Date
Oracle Linux 6 Security Technical Implementation Guide	2021-12-03

Details

Check Text ( C-9137r357632_chk )
If the system is 64-bit only, this is not applicable. To determine if the system is configured to audit calls to the "stime" system call, run the following command: $ sudo grep -w "stime" /etc/audit/audit.rules -a always,exit -F arch=b32 -S stime -k audit_time_rules If the system is not configured to audit the "stime" system call, this is a finding.

Fix Text (F-9137r357633_fix)
On a 32-bit system, add the following to "/etc/audit/audit.rules": # audit_time_rules -a always,exit -F arch=b32 -S stime -k audit_time_rules Note: On a 64-bit system, it is not necessary to define a rule for "stime".