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TOSS must not allow blank or null passwords in the system-auth file.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-252940 | TOSS-04-010380 | SV-252940r824144_rule | High |
| Description |
|---|
| If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments. |
| STIG | Date |
|---|---|
| Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide | 2022-08-29 |
Details
| Check Text ( C-56393r824142_chk ) |
|---|
| To verify that null passwords cannot be used, run the following command: $ sudo grep -i nullok /etc/pam.d/system-auth If output is produced, this is a finding. |
| Fix Text (F-56343r824143_fix) |
|---|
| Remove any instances of the "nullok" option in the "/etc/pam.d/system-auth" file to prevent logons with empty passwords. Note: Manual changes to the listed file may be overwritten by the "authselect" program. |