RHEL 10 must disable the x86 Ctrl-Alt-Delete key sequence.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
highV-281299SRG-OS-000324-GPOS-00125RHEL-10-700960SV-281299r1166849_rule2026-03-111

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 operating system environment, this can create the risk of short-term loss of systems availability 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 RHEL 10 is not configured to reboot the system when Ctrl-Alt-Delete is pressed with the following command: $ sudo systemctl status ctrl-alt-del.target o ctrl-alt-del.target Loaded: masked (Reason: Unit ctrl-alt-del.target is masked.) Active: inactive (dead) If the "ctrl-alt-del.target" is loaded and not masked, this is a finding.

✔️ Fix

Configure RHEL 10 to disable the "ctrl-alt-del.target" with the following command: $ sudo systemctl disable --now ctrl-alt-del.target $ sudo systemctl mask --now ctrl-alt-del.target