The Photon operating system must be configured so the x86 Ctrl-Alt-Delete key sequence is disabled on the command line.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256558	PHTN-30-000089	SV-256558r942495_rule		Medium

Description
When the Ctrl-Alt-Del target is enabled, 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.

STIG	Date
VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide	2023-12-01

Details

Check Text ( C-60233r942494_chk )
At the command line, run the following command: # systemctl status ctrl-alt-del.target Expected result: ctrl-alt-del.target Loaded: masked (Reason: Unit ctrl-alt-del.target is masked.) Active: inactive (dead) If the "ctrl-alt-del.target" is not "inactive" and "masked", this is a finding.

Fix Text (F-60176r887347_fix)
At the command line, run the following command: # systemctl mask ctrl-alt-del.target