RHEL 8 must not allow accounts configured with blank or null passwords.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-230380 | RHEL-08-020330 | SV-230380r858715_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 |
|---|---|
| Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2022-12-06 |
Details
| Check Text ( C-33049r858714_chk ) |
|---|
| To verify that null passwords cannot be used, run the following command: $ sudo grep -ir permitemptypasswords /etc/ssh/sshd_config* PermitEmptyPasswords no If "PermitEmptyPasswords" is set to "yes", this is a finding. If conflicting results are returned, this is a finding. |
| Fix Text (F-33024r743992_fix) |
|---|
| Edit the following line in "etc/ssh/sshd_config" to prevent logons with empty passwords. PermitEmptyPasswords no The SSH daemon must be restarted for the changes to take effect. To restart the SSH daemon, run the following command: $ sudo systemctl restart sshd.service |