Finding ID | Version | Rule ID | IA Controls | Severity |
---|---|---|---|---|
V-38573 | RHEL-06-000061 | SV-50374r3_rule | Medium |
Description |
---|
Locking out user accounts after a number of incorrect attempts prevents direct password guessing attacks. |
STIG | Date |
---|---|
Red Hat Enterprise Linux 6 Security Technical Implementation Guide | 2015-03-06 |
Check Text ( C-46131r3_chk ) |
---|
To ensure the failed password attempt policy is configured correctly, run the following command: # grep pam_faillock /etc/pam.d/system-auth # grep pam_faillock /etc/pam.d/password-auth The output should show "deny=3" for both files. If that is not the case, this is a finding. |
Fix Text (F-43521r5_fix) |
---|
To configure the system to lock out accounts after a number of incorrect logon attempts using "pam_faillock.so": Add the following lines immediately below the "pam_unix.so" statement in the AUTH section of "/etc/pam.d/system-auth" and "/etc/pam.d/password-auth": auth [default=die] pam_faillock.so authfail deny=3 unlock_time=604800 fail_interval=900 auth required pam_faillock.so authsucc deny=3 unlock_time=604800 fail_interval=900 Note that any updates made to "/etc/pam.d/system-auth" and "/etc/pam.d/password-auth" may be overwritten by the "authconfig" program. The "authconfig" program should not be used. |