STIGQter: STIG Summary: SUSE Linux Enterprise Server 15 Security Technical Implementation Guide Version: 2 Release: 8 Benchmark Date: 01 Jul 2026:

The SUSE operating system must disable the systemd Ctrl-Alt-Delete burst key sequence.

DISA Rule

SV-234990r1106565_rule

Vulnerability Number

V-234990

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

SLES-15-040062

Severity

CAT I

CCI(s)

CCI-000366 - Implement the security configuration settings.

Weight

Fix Recommendation

Configure the system to disable the CtrlAltDelBurstAction by adding it to a drop file in a "/etc/systemd/system.conf.d/" configuration file:

If no drop file exists, create one with the following command:

> sudo touch /etc/systemd/system.conf.d/55-CtrlAltDel-BurstAction

Edit the file to contain the setting by adding the following text:

CtrlAltDelBurstAction=none

Reload the daemon for this change to take effect:

> sudo systemctl daemon-reexec

Check Contents

Verify the SUSE operating system is not configured to reboot the system when Ctrl-Alt-Delete is pressed seven times within two seconds with the following command:

> systemd-analyze cat-config systemd/system.conf

# /etc/systemd/system.conf.d/55-CtrlAltDel-BurstAction.conf
CtrlAltDelBurstAction=none

If the "CtrlAltDelBurstAction" is not set to "none", commented out, or is missing, this is a finding.
If the setting is not configured in a drop in file, this is a finding.

Vulnerability Number

V-234990

Documentable

False

Rule Version

SLES-15-040062

Severity Override Guidance

Check Content Reference

Target Key

5274