The audit system must be configured to audit changes to the /etc/sudoers file.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-51135	OL6-00-000201	SV-65345r1_rule		Low

Description
The actions taken by system administrators should be audited to keep a record of what was executed on the system, as well as, for accountability purposes.

STIG	Date
Oracle Linux 6 Security Technical Implementation Guide	2015-03-23

Details

Check Text ( C-53537r1_chk )
To verify that auditing is configured for system administrator actions, run the following command: # auditctl -l | grep "watch=/etc/sudoers" If there is no output, this is a finding.

Fix Text (F-55943r1_fix)
At a minimum, the audit system should collect administrator actions for all users and root. Add the following to "/etc/audit/audit.rules": -w /etc/sudoers -p wa -k actions