PHTN-30-000083 - The Photon operating system must configure sshd to disallow authentication with an empty password.

Information

Blank passwords are one of the first things an attacker checks for when probing a system. Even is the user somehow has a blank password on the operating system, sshd must not allow that user to log in.

Solution

Navigate to and open:

/etc/ssh/sshd_config

Ensure the 'PermitEmptyPasswords' line is uncommented and set to the following:

PermitEmptyPasswords no

At the command line, run the following command:

# systemctl restart sshd.service

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_7-0_Y25M01_STIG.zip