Rule version PHTN-30-000112 · STIG v1 · 2026-08-31
The "sshd_config" file contains all the configuration items for sshd. Incorrect or malicious configuration of sshd can allow unauthorized access to the system, insecure communication, limited forensic trail, etc.
At the command line, run the following command:
# stat -c "%n permissions are %a and owned by %U:%G" /etc/ssh/sshd_config
Expected result:
/etc/ssh/sshd_config permissions are 600 and owned by root:root
If the output does not match the expected result, this is a finding.
At the command line, run the following commands:
# chmod 600 /etc/ssh/sshd_config # chown root:root /etc/ssh/sshd_config