The SUSE operating system must disable the x86 Ctrl-Alt-Delete key sequence.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-217159 | SRG-OS-000480-GPOS-00227 | SLES-12-010610 | SV-217159r991589_rule | 2025-11-24 | 3 |
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.
ℹ️ Check
Verify the SUSE operating system is not configured to reboot the system when Ctrl-Alt-Delete is pressed.
Check that the ctrl-alt-del.target is masked with the following command:
> systemctl status ctrl-alt-del.target
Loaded: masked (/dev/null; masked)
Active: inactive (dead)
If the ctrl-alt-del.target is not masked, this is a finding.
✔️ Fix
Configure the system to disable the Ctrl-Alt-Delete sequence for the command line with the following commands:
> sudo systemctl disable ctrl-alt-del.target
> sudo systemctl mask ctrl-alt-del.target
And reload the daemon to take effect
> sudo systemctl daemon-reload