The Ctrl-Alt-Delete key sequence must be disabled on AlmaLinux OS 9.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-269141 | SRG-OS-000324-GPOS-00125 | ALMA-09-006730 | SV-269141r1050023_rule | 2025-02-20 | 1 |
| Description |
|---|
| A locally logged-on user who presses Ctrl-Alt-Delete when at the console can reboot the system. If accidentally pressed, as could happen in the case of a mixed OS environment, this can create the risk of short-term loss of availability of systems due to unintentional reboot. In a graphical user environment, risk of unintentional reboot from the Ctrl-Alt-Delete sequence is reduced because the user will be prompted before any action is taken. |
| ℹ️ Check |
|---|
| Verify AlmaLinux OS 9 is not configured to reboot the system when Ctrl-Alt-Delete is pressed with the following command: $ systemctl status ctrl-alt-del.target reboot.target Loaded: masked (Reason: Unit reboot.target is masked.) Active: inactive (dead) If the "reboot.target" is loaded and not masked, this is a finding. |
| ✔️ Fix |
|---|
| Configure AlmaLinux OS 9 to disable the ctrl-alt-del.target with the following command: $ systemctl disable --now reboot.target $ systemctl mask --now reboot.target |