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  2. MI400
  3. July 2005

RE: Buffer overflow and code execution on iSeries

Steve,


> All theory of course. The SEPT hook is something I always wanted
> to try but
> did not have the nerve for.  What is the worse that could happen?
>  A system
> crash??
>
> -Steve

Each job has a pointer to the Sept in its PCO.
So, you can create your own space, copy the original Sept into your space,
in the PCO change the sept pointer to a pointer to your space. Voilà !
You can change pointers in your space as you like, only your job will crash.
Nevertheless I advise to restore original SEPT Pointer into PCO before
ending your job. Entries in WCBT are reused, and new jobs may be started
with your own "sept".

Jean Michel

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