VMware Postgres must limit modify privileges to authorized accounts.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-256597	SRG-APP-000133-DB-000362	VCPG-70-000007	SV-256597r887577_rule	2023-06-15	1

Description
If VMware Postgres were to allow any user to make changes to database structure or logic, those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. Only qualified and authorized individuals must be allowed to obtain access to information system components to initiate changes, including upgrades and modifications. Unmanaged changes that occur to the database software libraries or configuration can lead to unauthorized or compromised installations.

Description

If VMware Postgres were to allow any user to make changes to database structure or logic, those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. Only qualified and authorized individuals must be allowed to obtain access to information system components to initiate changes, including upgrades and modifications. Unmanaged changes that occur to the database software libraries or configuration can lead to unauthorized or compromised installations.

ℹ️ Check
At the command prompt, run the following command: # /opt/vmware/vpostgres/current/bin/psql -U postgres -c "\du;"\|grep "Create" Expected result: postgres \| Superuser, Create role, Create DB, Replication, Bypass RLS \| {} vc \| Create DB \| {} vlcmuser \| Create DB \| {} If accounts other than "postgres","vc", and "vlcmuser" have any "Create" privileges, this is a finding.

✔️ Fix
At the command prompt, run the following command: # /opt/vmware/vpostgres/current/bin/psql -U postgres -c "REVOKE ALL PRIVILEGES FROM <user>;" Replace <user> with the account discovered during the check.