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The Photon operating system must disable the debug-shell service.


Finding ID Version Rule ID IA Controls Severity
V-258873 PHTN-40-000210 SV-258873r933680_rule Medium
The debug-shell service is intended to diagnose systemd related boot issues with various systemctl commands. Once enabled and following a system reboot, the root shell will be available on tty9. This service must remain disabled until and unless otherwise directed by VMware support.
VMware vSphere 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide 2023-10-29


Check Text ( C-62613r933678_chk )
At the command line, run the following command to verify the debug-shell service is disabled:

# systemctl status debug-shell.service

If the debug-shell service is not stopped and disabled, this is a finding.
Fix Text (F-62522r933679_fix)
At the command line, run the following commands:

# systemctl stop debug-shell.service
# systemctl disable debug-shell.service