Detections
Analytics

1.39 ALMA-09-006730

Information

The Ctrl-Alt-Delete key sequence must be disabled on AlmaLinux OS 9.

GROUP ID: V-269141
RULE ID: SV-269141r1101851

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 a graphical user environment, risk of unintentional reboot from the Ctrl-Alt-Delete sequence is reduced because the user will be prompted before any action is taken.

Solution

Configure AlmaLinux OS 9 to disable the ctrl-alt-del.target with the following command:

$ systemctl disable --now ctrl-alt-del.target

$ systemctl mask --now ctrl-alt-del.target

See Also

https://workbench.cisecurity.org/benchmarks/27039

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-6(10), CCI|CCI-002235, Rule-ID|SV-269141r1101851_rule, STIG-ID|ALMA-09-006730, Vuln-ID|V-269141

Plugin: Unix

Control ID: b2b8c9620cd665f16e5d217b702a8c71f6b4c9e3f26487256366a3f7d4fc8b50