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V-259238

CAT II (Medium)

Database objects must be owned by database/EDB Postgres Advanced Server principals authorized for ownership.

Rule ID

SV-259238r960960_rule

STIG

EnterpriseDB Postgres Advanced Server (EPAS) Security Technical Implementation Guide

Version

V2R1

CCIs

CCI-001499

Discussion

Database objects include but are not limited to tables, indexes, storage, stored procedures, functions, triggers, and links to software external to the EDB Postgres Advanced Server, etc. Within the database, object ownership implies full privileges to the owned object, including the privilege to assign access to the owned objects to other subjects. Database functions and procedures can be coded using definer's rights. This allows anyone who utilizes the object to perform the actions as if they were the owner. If not properly managed, this can lead to privileged actions being taken by unauthorized individuals. Conversely, if critical tables or other objects rely on unauthorized owner accounts, these objects may be lost when an account is removed.

Check Content

Review system documentation to identify accounts authorized to own database objects. Review accounts that own objects in the database(s) by running the following SQL command as the "enterprisedb" user:

psql edb -c "SELECT * FROM sys.all_objects;"

If any database objects are found to be owned by users not authorized to own database objects, this is a finding.

Fix Text

Assign ownership of authorized objects to authorized object owner accounts by running the following SQL command for each object to be changed:

ALTER <type> <object name> OWNER TO <new owner>;

For example: ALTER TABLE my_table OWNER TO APP_USER;