AlmaLinux OS 9 must require authentication to access emergency mode.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269136 | ALMA-09-006180 | SV-269136r1050018_rule | Medium |
| Description |
| This requirement prevents attackers with physical access from easily bypassing security on the machine and gaining root access. Such accesses are further prevented by configuring the bootloader password. |
| STIG | Date |
| CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide | 2025-05-22 |
Details
| Check Text (C-73167r1049171_chk) |
| Verify that AlmaLinux OS 9 requires authentication for emergency mode with the following command: $ grep -E 'ExecStart.*sulogin' /usr/lib/systemd/system/emergency.service ExecStart=-/usr/lib/systemd/systemd-sulogin-shell emergency If this line is not returned, or is commented out, this is a finding. If the output is different, this is a finding. |
| Fix Text (F-73068r1049172_fix) |
| Configure AlmaLinux OS 9 to require authentication for emergency mode. Add or modify the following line in the "/usr/lib/systemd/system/emergency.service" file: ExecStart=-/usr/lib/systemd/systemd-sulogin-shell emergency "sudo systemctl edit emergency.service" can also be used to create a "/etc/systemd/system/emergency.service.d/override.conf" file. |