Information
RHEL 9 must not have accounts configured with blank or null passwords.
GROUP ID: V-258120
RULE ID: SV-258120r991589
If an account has an empty password, anyone could log in and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments.
Solution
Configure all accounts on RHEL 9 to have a password or lock the account with the following commands:
Perform a password reset:
$ sudo passwd [username]
To lock an account:
$ sudo passwd -l [username]