Detections
Analytics

1.69 UBTU-24-300026

Information

The operating system must disable the x86 Ctrl-Alt-Delete key sequence.

GROUP ID: V-270712
RULE ID: SV-270712r1068363

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.

Solution

Configure the system to disable the Ctrl-Alt-Delete sequence for the command line with the following commands:

$ sudo systemctl disable ctrl-alt-del.target
[...]

$ sudo systemctl mask ctrl-alt-del.target
Created symlink /etc/systemd/system/ctrl-alt-del.target ? /dev/null.

Reload the daemon to take effect:

$ sudo systemctl daemon-reload

See Also

https://workbench.cisecurity.org/benchmarks/22775

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|I, CCI|CCI-000366, CSCv7|5.1, Rule-ID|SV-270712r1068363_rule, STIG-ID|UBTU-24-300026, Vuln-ID|V-270712

Plugin: Unix

Control ID: f7cf63fe572e50302472dabe1ff7578166b624fef9ea922c306fd71f3483f4a7