Title

PostgreSQL must disable network functions, ports, protocols, and services deemed by the organization to be nonsecure, in accord with the Ports, Protocols, and Services Management (PPSM) guidance. (Cat II impact)

Discussion

Use of nonsecure network functions, ports, protocols, and services exposes the system to avoidable threats.

Check Content

As the database administrator, run the following SQL: $ psql -c "SHOW port" If the currently defined port configuration is deemed prohibited, this is a finding.

Fix Text

Note: The following instructions use the PGDATA and PGVER environment variables. See supplementary content APPENDIX-F for instructions on configuring PGDATA and APPENDIX-H for PGVER. To change the listening port of the database, as the database administrator, change the following setting in postgresql.conf: $ sudo su - postgres $ vi $PGDATA/postgresql.conf Change the port parameter to the desired port. Next, restart the database: $ sudo systemctl restart postgresql-${PGVER?} Note: psql uses the port 5432 by default. This can be changed by specifying the port with psql or by setting the PGPORT environment variable: $ psql -p 5432 -c "SHOW port" $ export PGPORT=5432

Additional Identifiers

Rule ID: SV-233548r879756_rule

Vulnerability ID: V-233548

Group Title: SRG-APP-000383-DB-000364

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.