Yes, it it certainly possible to open a system up to the world by allowing
z/OS operator commands via JCL. Which is why we have OPERCMDS set up to
restrict the SETPROG z/OS command to tech services people only. And we
don't allow "in stream" (JCL) submission of z/OS operator commands. Yes, we
have a program which can issue an operator command via JCL as in "//DOCMD
EXEC PGM=ZOSCMD,PARM='D A,L' ". But that resides in a restricted APF
library which "normal" people can't even READ.


Yes, I have a touch of terminal paranoia! <grin/>


On Mon, Nov 11, 2013 at 7:13 AM, DASDBILL2 <[email protected]> wrote:

> Any process today which can programmatically submit an operator command
> with the proper authority for that particular  command can submit an
> operator command to add a library name to the APF list, the change from
> which is immediately effective.
> Any process today which can programmatically update a system library can
> update the APF list so that library X.Y.Z will be APF-authorized after the
> next IPL.
>
> Both processes must themselves be treated as if they were APF authorized,
> meaning they must be tightly controlled as to who can use them.  Any
> process which creates such a process (ATTACH, INTRDR, etc.) must also be
> tightly controlled.  Any process which creates such a process which
> creates... ad infinitum.
>
> Bill Fairchild
>
>
--
Another case of too many mad scientists and not enough hunchbacks.

Maranatha!
John McKown

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