STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

OL 8 must disable the systemd Ctrl-Alt-Delete burst key sequence.

DISA Rule

SV-248871r1156667_rule

Vulnerability Number

V-248871

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL08-00-040172

Severity

CAT II

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Configure OL 8 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 mkdir -p /etc/systemd/system.conf.d && sudo vi /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-reload

Check Contents

Verify OL 8 is not configured to reboot the system when Ctrl-Alt-Delete is pressed seven times within two seconds with the following command:

$ sudo grep -iR CtrlAltDelBurstAction /etc/systemd/system*
/etc/systemd/system.conf.d/55-CtrlAltDel-BurstAction:CtrlAltDelBurstAction=none

If the "CtrlAltDelBurstAction" is not set to "none" or is commented out or missing, this is a finding.

Vulnerability Number

V-248871

Documentable

False

Rule Version

OL08-00-040172

Severity Override Guidance

Verify OL 8 is not configured to reboot the system when Ctrl-Alt-Delete is pressed seven times within two seconds with the following command:

$ sudo grep -iR CtrlAltDelBurstAction /etc/systemd/system*
/etc/systemd/system.conf.d/55-CtrlAltDel-BurstAction:CtrlAltDelBurstAction=none

If the "CtrlAltDelBurstAction" is not set to "none" or is commented out or missing, this is a finding.

Check Content Reference

M

Target Key

5416