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


Overview

Finding ID Version Rule ID IA Controls Severity
V-239166 PHTN-67-000095 SV-239166r675306_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 OS environment, this can create the risk of short-term loss of systems availability due to unintentional reboot.
STIG Date
VMware vSphere 6.7 Photon OS Security Technical Implementation Guide 2022-06-17

Details

Check Text ( C-42377r675304_chk )
At the command line, execute the following command:

# systemctl status ctrl-alt-del.target

Expected result:

ctrl-alt-del.target
Loaded: masked (/dev/null; bad)
Active: inactive (dead)

If the output does not match the expected result, this is a finding.
Fix Text (F-42336r675305_fix)
At the command line, execute the following command:

# systemctl mask ctrl-alt-del.target