This module performs a privilege escaltion on mainframe systems
runing z/OS and using RACF for their security manager. A user
with any non-privileged credentials and the ability to write to
an apf authorized library can use this payload to add "root level"
privileges (e.g. SPECIAL / BPX.SUPERUSER) to their profile.
This exploit module allows a user with credentials to execute JCL on a
vulnerable mainframe system running z/OS and an appropriately configured
FTP server.