From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE
Part of GEN002751
Associated with IA controls: ECAT-1
Associated with: CCI-001403
If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.
Determine if the audit system is configured to audit account modification. Procedure: # more /etc/security/audit/events If auditing of the USER_Change event is not configured, this is a finding. Verify the USER_Change audit event is defined in the audit classes' stanza classes: of the /etc/security/audit/config file. Procedure: #more /etc/security/audit/config Make note of the audit class(es) the USER_Change event is associated with. If the USER_Change event is not associated with any audit classes in the classes: stanza, this is a finding. Verify the audit class is associated with the default user and all other user ids listed in the users: stanza of the /etc/security/audit/config file. Procedure: #more /etc/security/audit/config If the class(es) the USER_Change event is not associated with the default user and all the system users in the users: stanza, this is a finding.
Configure the system to audit account modification. Edit /etc/security/audit/events and add the USER_Change event to the list of audited events. Edit /etc/security/audit/config and add the USER_Change audit event to an audit class in the classes: stanza. Edit /etc/security/audit/config and assign the audit classes with the USER_Change event to the all users listed in the users: stanza.
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