STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must prevent a user from overriding the Ctrl-Alt-Del sequence settings for the graphical user interface.

DISA Rule

SV-269188r1184093_rule

Vulnerability Number

V-269188

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

ALMA-09-012340

Severity

CAT II

CCI(s)

CCI-000366 - Implement the security configuration settings.

Weight

Fix Recommendation

Configure AlmaLinux OS 9 to disallow the user changing the Ctrl-Alt-Del sequence in the GNOME desktop.

Create a database to contain systemwide graphical user logon settings (if it does not already exist) with the following command:

$ touch /etc/dconf/db/local.d/locks/session

Add the following line to the session locks file to prevent nonprivileged users from modifying the Ctrl-Alt-Del setting:

/org/gnome/settings-daemon/plugins/media-keys/logout

Run the following command to update the database:

$ dconf update

Check Contents

Note: This requirement assumes the use of the AlmaLinux OS 9 default graphical user interface, the GNOME desktop environment. If the system does not have any graphical user interface installed, this requirement is Not Applicable.

Verify that users cannot enable the Ctrl-Alt-Del sequence in the GNOME desktop with the following command:

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

/org/gnome/settings-daemon/plugins/media-keys/logout

If the output is not "/org/gnome/settings-daemon/plugins/media-keys/logout", the line is commented out, or the line is missing, this is a finding.

Vulnerability Number

V-269188

Documentable

False

Rule Version

ALMA-09-012340

Severity Override Guidance

Check Content Reference

Target Key

5664