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RHEL-10-700970 - RHEL 10 must disable the debug-shell systemd service.
Information
The debug-shell requires no authentication and provides root privileges to anyone who has physical access to the machine. While this feature is disabled by default, masking it adds an additional layer of assurance that it will not be enabled via a dependency in systemd. This also prevents attackers with physical access from trivially bypassing security on the machine through valid troubleshooting configurations and gaining root access when the system is rebooted.Solution
Configure RHEL 10 to mask the debug-shell systemd service with the following command:$ sudo systemctl disable --now debug-shell.service
$ sudo systemctl mask --now debug-shell.service
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_RHEL_10_V1R1_STIG.zip
Item Details
Audit Name: DISA Red Hat Enterprise Linux 10 STIG v1r1
Category: ACCESS CONTROL
References: 800-53|AC-6(10), CAT|II, CCI|CCI-002235, Rule-ID|SV-280094r1184607_rule, STIG-ID|RHEL-10-700970, Vuln-ID|V-280094
Plugin: Unix
Control ID: e99417363a38b2bfd4a56b08d8eac52cec6b11d78c99fb9ef0df6853adc8a019