STIGQter: STIG Summary: Red Hat Enterprise Linux 8 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

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

DISA Rule

SV-230529r627750_rule

Vulnerability Number

V-230529

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

RHEL-08-040170

Severity

CAT I

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Configure the system to disable the Ctrl-Alt-Delete sequence for the command line with the following command:

$ sudo systemctl mask ctrl-alt-del.target

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

Reload the daemon for this change to take effect.

$ sudo systemctl daemon-reload

Check Contents

Verify RHEL 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

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.

Vulnerability Number

V-230529

Documentable

False

Rule Version

RHEL-08-040170

Severity Override Guidance

Verify RHEL 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

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.

Check Content Reference

M

Target Key

2921

Comments