Detections
Analytics

1.172 SLES-15-040060

Information

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

GROUP ID: V-234988
RULE ID: SV-234988r991589

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 user interface 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 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

And reload the daemon to take effect

sudo systemctl daemon-reload

See Also

https://workbench.cisecurity.org/benchmarks/23779

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|I, CCI|CCI-000366, Rule-ID|SV-234988r991589_rule, STIG-ID|SLES-15-040060, Vuln-ID|V-234988

Plugin: Unix

Control ID: b0e1f8aebd056462c29df89a584df67f6583661d1446db1954c493d884e94ecc