Information
If the DBMS were to allow any user to make changes to database structure or logic, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process.
Accordingly, only qualified and authorized individuals must be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications.
Unmanaged changes that occur to the database software libraries or configuration can lead to unauthorized or compromised installations.
NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.
Solution
Revoke unauthorized privileges.
The syntax is:
REVOKE <privilege> ON <object> FROM <role>.
Example:
REVOKE INSERT ON a FROM PUBLIC;
See PostgreSQL documentation for details.