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RHEL 9 must not allow blank or null passwords.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-258094 | RHEL-09-611025 | SV-258094r991589_rule | High |
| Description |
|---|
| If an account has an empty password, anyone could log in and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2024-06-04 |
Details
| Check Text ( C-61835r926267_chk ) |
|---|
| Verify that null passwords cannot be used with the following command: $ sudo grep -i nullok /etc/pam.d/system-auth /etc/pam.d/password-auth If output is produced, this is a finding. |
| Fix Text (F-61759r926268_fix) |
|---|
| Remove any instances of the "nullok" option in the "/etc/pam.d/password-auth" and "/etc/pam.d/system-auth" files to prevent logons with empty passwords. Note: Manual changes to the listed file may be overwritten by the "authselect" program. |