Red Hat Ansible Automation Platform: missing authorization

A flaw was found in Ansible Automation Platform's automation-controller (AWX).

The Bulk Job Launch API (POST /api/v2/bulk/job_launch/) authorizes the

requested instance_groups with only a read-level permission check, whereas the

standard single-job launch path requires use-level permission on the same

field. A principal that holds read (but not use) permission on an instance

group -- for example the built-in read-only System Auditor role -- together

with execute permission on a job template can launch bulk jobs onto instance

groups they are not authorized to use, bypassing execution-placement

isolation.