Detections
Analytics

1.68 UBTU-24-300025

Information

The operating system must disable the x86 Ctrl-Alt-Delete key sequence if a graphical user interface is installed.

GROUP ID: V-270711
RULE ID: SV-270711r1066622

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 the graphical 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 the operating system to disable the Ctrl-Alt-Delete sequence when using a graphical user interface:

$ gsettings set org.gnome.settings-daemon.plugins.media-keys logout []

Update the dconf settings:

$ sudo dconf update

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-270711r1066622_rule, STIG-ID|UBTU-24-300025, Vuln-ID|V-270711

Plugin: Unix

Control ID: 77b8d227b9ee93ab46fb304353d7f2261876f3ad9696ab3fe3a725101a5cfb43