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 in OL 8 must be disabled if a graphical user interface is installed.

DISA Rule

SV-248870r991589_rule

Vulnerability Number

V-248870

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL08-00-040171

Severity

CAT I

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Configure the system to disable the Ctrl-Alt-Delete sequence when using a graphical user interface by creating or editing the "/etc/dconf/db/local.d/00-disable-CAD" file.

Add the setting to disable the Ctrl-Alt-Delete sequence for a graphical user interface:

[org/gnome/settings-daemon/plugins/media-keys]
logout=''

Update the dconf settings:

$ sudo dconf update

Check Contents

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

$ sudo grep logout /etc/dconf/db/local.d/*

logout=''

If the "logout" key is bound to an action, is commented out, or is missing, this is a finding.

Vulnerability Number

V-248870

Documentable

False

Rule Version

OL08-00-040171

Severity Override Guidance

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

$ sudo grep logout /etc/dconf/db/local.d/*

logout=''

If the "logout" key is bound to an action, is commented out, or is missing, this is a finding.

Check Content Reference

M

Target Key

5416