V-261916
Crunchy Data Postgres 16 Security Technical Implementation Guide
Title
Execution of software modules (to include stored procedures, functions, and triggers) with elevated privileges must be restricted to necessary cases only.
Description
<VulnDiscussion>In certain situations, to provide required functionality, PostgreSQL needs to execute internal logic (stored procedures, functions, triggers, etc.) and/or external code modules with elevated privileges. However, if the privileges required for execution are at a higher level than the privileges assigned to organizational users invoking the functionality applications/programs, those users are indirectly provided with greater privileges than assigned by organizations. Privilege ele...
Fix Text (Documentation Requirement)
Determine where, when, how, and by what principals/subjects elevated privilege is needed. To change a SECURITY DEFINER function to SECURITY INVOKER, as the database administrator (shown here as "postgres"), run the following SQL: $ sudo su - postgres $ psql -c "ALTER FUNCTION <function_name> SECURITY INVOKER"