RHEL 9 must log username information when unsuccessful logon attempts occur.

Documentable No

Rule ID SV-258070r1045153_rule

CCI References

CCI-000044

Discussion

Without auditing of these events, it may be harder or impossible to identify what an attacker did after an attack.

Check Procedure

Verify the "/etc/security/faillock.conf" file is configured to log username information when unsuccessful logon attempts occur with the following command:

$ sudo grep audit /etc/security/faillock.conf

audit

If the "audit" option is not set, is missing, or is commented out, this is a finding.

Fix Action

Configure RHEL 9 to log username information when unsuccessful logon attempts occur.

Enable the feature using the following command:
 
$ sudo authselect enable-feature with-faillock 
 
Add/modify the "/etc/security/faillock.conf" file to match the following line:

audit