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The SUSE operating system must disable the x86 Ctrl-Alt-Delete key sequence for Graphical User Interfaces.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-234989SLES-15-040061SV-234989r1155792_ruleCCI-000366high
Description
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 OS environment, this can create the risk of short-term loss of availability of systems due to unintentional reboot. In the graphical user interface environment, risk of unintentional reboot from the Ctrl-Alt-Delete sequence is reduced because the user will be prompted before any action is taken.
STIGDate
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide2026-02-19

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (8) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
MON-01Continuous Monitoring
1.00
MON-01.7File Integrity Monitoring (FIM)
1.00
CFG-02Secure Baseline Configurations
0.50
CFG-02.7Approved Configuration Deviations
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (100) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-12Session Termination
1.00
AC-16(1)Dynamic Attribute Association
1.00
AC-17(1)Monitoring and Control
1.00
AC-2Account Management
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-24(1)Transmit Access Authorization Information
1.00
AC-25Reference Monitor
1.00

+90 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.4.1
1.00
3.4.2
1.00
CCI1 mapping
CCI-000366
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-09
1.00
PR.PS-01
1.00
PR.DS-10
0.50
PR.PSPlatform Security
0.50
PR.PS-05
0.50

Who does this work

10 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-234989r1155792_chk)

Note: If a graphical user interface is not installed, this requirement is Not Applicable. Verify the SUSE operating system is not configured to reboot the system when Ctrl-Alt-Delete is pressed in the graphical user interface. Check that the dconf setting was disabled to allow the Ctrl-Alt-Delete sequence in the graphical user interface with the following command: Check the default logout key sequence: > sudo gsettings get org.gnome.settings-daemon.plugins.media-keys logout '' Check that the value is not writable and cannot be changed by the user: > sudo gsettings writable org.gnome.settings-daemon.plugins.media-keys logout false If the logout value is not [''] and the writable status is not false, this is a finding.

Fix Text (F-38140r1155791_fix)

Configure the system to disable the Ctrl-Alt-Delete sequence for the graphical user interface. Create a database to contain the systemwide setting (if it does not already exist) with the following steps: 1. Create a user profile and with the listed content: /etc/dconf/profile/user user-db:user system-db:local 2. Create the following directories: > sudo mkdir -p /etc/dconf/db/local.d/ > sudo mkdir -p /etc/dconf/db/local.d/locks/ 3. Add the following files with the listed content: /etc/dconf/db/local.d/01-fips-settings [org/gnome/settings-daemon/plugins/media-keys] logout='' /etc/dconf/db/local.d/locks/01-fips-locks /org/gnome/settings-daemon/plugins/media-keys/logout 4. Update the dconf database: > sudo dconf update