Local privilege escalation via writable service executable

Privilege escalation in Rockstar Games Launcher 1.0.37.349 allows local users to gain administrator access via a writable service binary. The RockstarService.exe access-control list grants the Authenticated Users group Modify permission, allowing replacement before service startup. A low-privileged Windows account and the ability to start the Rockstar Service are sufficient for the replacement binary to run with elevated service privileges.