Versa Networks Versa Director insecure default PostgreSQL configuration

Versa Networks Versa Director, by default, configures PostgreSQL to listen on all network interfaces using database credentials shared by multiple installations. From [Advising Vulnerability In Versa Director](https://security-portal.versa-networks.com/emailbulletins/6735a300415abb89e9a8a9d3): "This combination allows an unauthenticated attacker to access and administer the database or read local filesystem contents to escalate privileges on the system.... Starting with the latest 22.1.4 version of Versa Director, the software will automatically restrict access to the Postgres and HA ports to only the local and peer Versa Directors." The advisory does not directly address the "...common password across all instances of Versa Director."