The Photon operating system must be configured so the x86 Ctrl-Alt-Delete key sequence is disabled on the command line.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-256558 | SRG-OS-000480-GPOS-00227 | PHTN-30-000089 | SV-256558r991589_rule | 2024-12-16 | 1 |
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.
ℹ️ Check
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
At the command line, run the following command:
# systemctl mask ctrl-alt-del.target