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RHEL-09-611030 - RHEL 9 must configure the use of the pam_faillock.so module in the /etc/pam.d/system-auth file.
Information
If the pam_faillock.so module is not loaded, the system will not correctly lockout accounts to prevent password guessing attacks.Solution
Configure RHEL 9 to include the use of the pam_faillock.so module in the /etc/pam.d/system-auth file.If PAM is managed with authselect, enable the feature with the following command:
$ sudo authselect enable-feature with-faillock
Otherwise, add/modify the appropriate sections of the "/etc/pam.d/system-auth" file to match the following lines:
Note: The "preauth" line must be listed before pam_unix.so.
auth required pam_faillock.so preauth
auth required pam_faillock.so authfail
account required pam_faillock.so
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_RHEL_9_V2R8_STIG.zip
Item Details
Audit Name: DISA Red Hat Enterprise Linux 9 STIG v2r8
Category: ACCESS CONTROL
References: 800-53|AC-7a., CAT|II, CCI|CCI-000044, Rule-ID|SV-258095r1045189_rule, STIG-ID|RHEL-09-611030, Vuln-ID|V-258095
Plugin: Unix
Control ID: 4d6da94255f4df2a25994ea262e95041a9d0870824c76f2a5f1e5186bfcaa79a