The audit system must be configured to audit login, logout, and session initiation.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-818	GEN002800	SV-45340r1_rule		Medium

Description
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.

STIG	Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide	2018-09-19

Details

Check Text ( C-42690r1_chk )
The message types that are always recorded to /var/log/audit/audit.log include LOGIN,USER_LOGIN,USER_START,USER_END among others and do not need to be added to audit_rules. The log files /var/log/faillog and /var/log/lastlog must be protected from tampering of the login records. Procedure: # egrep "faillog\|lastlog" /etc/audit/audit.rules\|grep -e "-p (wa\|aw)" If both /var/log/faillog and /var/log/lastlog entries do not exist, this is a finding.

Check Text ( C-42690r1_chk )

The message types that are always recorded to /var/log/audit/audit.log include LOGIN,USER_LOGIN,USER_START,USER_END among others and do not need to be added to audit_rules.

The log files /var/log/faillog and /var/log/lastlog must be protected from tampering of the login records.

Procedure:

# egrep "faillog|lastlog" /etc/audit/audit.rules|grep -e "-p (wa|aw)"

If both /var/log/faillog and /var/log/lastlog entries do not exist, this is a finding.

Fix Text (F-38736r1_fix)
Ensure logins Procedure: Modify /etc/audit/audit.rules to contain: -w /var/log/faillog -p wa -w /var/log/lastlog -p wa Restart the auditd service. # rcauditd restart OR # service auditd restart