Detections
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1.256 RHEL-09-271105

Information

RHEL 9 must disable the ability of a user to accidentally press Ctrl-Alt-Del and cause a system to shut down or reboot.

GROUP ID: V-258031
RULE ID: SV-258031r1045114

A locally logged-in user who presses Ctrl-Alt-Del, when at the console, can reboot the system. If accidentally pressed, as could happen in the case of mixed OS environment, this can create the risk of short-term loss of availability of systems due to unintentional reboot.

Solution

Configure RHEL 9 to ignore the Ctrl-Alt-Del sequence in the GNOME desktop.

Run the following command to set the media-keys logout setting:

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

Run the following command to update the database:

$ sudo dconf update

See Also

https://workbench.cisecurity.org/benchmarks/22008

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-258031r1045114_rule, STIG-ID|RHEL-09-271105, Vuln-ID|V-258031

Plugin: Unix

Control ID: 3bbe3304aa605124d4904da583cccf66a6dbafdfa4fe497d9e618f503c3e4c20