STIGQter STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

The x86 Ctrl-Alt-Delete key sequence must be disabled on OL 8.

DISA Rule

SV-248869r991589_rule

Vulnerability Number

V-248869

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL08-00-040170

Severity

CAT I

CCI(s)

Weight

10

Fix Recommendation

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

Created symlink /etc/systemd/system/ctrl-alt-del.target -> /dev/null

Reload the daemon to take effect:

$ sudo systemctl daemon-reload

Check Contents

Verify OL 8 is not configured to reboot the system when Ctrl-Alt-Delete is pressed with the following command:

$ sudo systemctl status ctrl-alt-del.target | grep Loaded:

Loaded: masked (Reason: Unit ctrl-alt-del.target is masked.)

If the "ctrl-alt-del.target" Loaded: value is not set to "masked", this is a finding.

Vulnerability Number

V-248869

Documentable

False

Rule Version

OL08-00-040170

Severity Override Guidance

Verify OL 8 is not configured to reboot the system when Ctrl-Alt-Delete is pressed with the following command:

$ sudo systemctl status ctrl-alt-del.target | grep Loaded:

Loaded: masked (Reason: Unit ctrl-alt-del.target is masked.)

If the "ctrl-alt-del.target" Loaded: value is not set to "masked", this is a finding.

Check Content Reference

M

Target Key

5416