Title

The EDB Postgres Advanced Server must separate user functionality (including user interface services) from database management functionality. (Cat II impact)

Discussion

Information system management functionality includes functions necessary to administer databases, network components, workstations, or servers and typically requires privileged user access. The separation of user functionality from information system management functionality is either physical or logical and is accomplished by using different computers, different central processing units, different instances of the operating system, different network addresses, combinations of these methods, or other methods, as appropriate. An example of this type of separation is observed in web administrative interfaces that use separate authentication methods for users of any other information system resources. This may include isolating the administrative interface on a different domain and with additional access controls. If administrative functionality or information regarding DBMS management is presented on an interface available for users, information on DBMS settings may be inadvertently made available to the user.

Check Content

As the "enterprisedb" user, run the following from the command line: > psql edb From the psql prompt run: \du If a user listed in the output is not approved for SUPERUSER access, this is a finding.

Fix Text

Execute the following SQL as the "enterprisedb" operating system user for all database users not approved for SUPERUSER privileges: > psql edb -c "ALTER USER <username> NOSUPERUSER"

Additional Identifiers

Rule ID: SV-259257r938824_rule

Vulnerability ID: V-259257

Group Title: SRG-APP-000211-DB-000122

Expert Comments

CCIs tied to check.

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