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Ubuntu 22.04 LTS must disable the x86 Ctrl-Alt-Delete key sequence.

An XCCDF Rule

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.

ID
SV-260469r991589_rule
Version
UBTU-22-211015
Severity
High
References
Updated

Remediation Templates

A Manual Procedure

Configure Ubuntu 22.04 LTS to disable the Ctrl-Alt-Delete sequence for the command line by using the following commands: 
 
     $ sudo systemctl disable ctrl-alt-del.target 
 
     $ sudo systemctl mask ctrl-alt-del.target