Old spool exit hack

MVS/ESA and JES3, UK big bank Nasty Wetmonster.

We had the usual assortment of exits and mods. We had a problem with jobs
throwing excessive amounts of output to spool. The answer was surprisingly
simple--put a STIMER (not STIMERM SET) in the exit, which slowed down that
job to let everything else run normally, without any nasty side effects.

Roo

On Sat, 22 Jun 2019, 16:58 Donald Blake, <[email protected]> wrote:

> If a company can't afford to do computing correctly, and that includes
> doing it securely, they shouldn't have computers in house in the first
> place. Particularly medical related companies such as hospitals. That's a
> HIPPA violation waiting to happen. Which in the US, carries potentially
> severe consequences.
>
> Date:    Fri, 21 Jun 2019 13:33:39 +0300
> From:    ITschak Mugzach <[email protected]>
> Subject: Re: mainframe hacking "success stories"?
>
> Radoslav,
>
> Many clients I visited allows local admin authority on windows workstation
> to the machine user for ease of management. However, we get clients monthly
> reports on success and failures from some clients of us. Most of them
> respond well to attacks and block them, so even their workstations are
> protected.
>
> I believe it is a question of budget. Banks can afford protection that
> hospitals can't (and bankers can afford better medical treatment than
> others...). If you look at the names of clients that were hit by such
> attach, it is almost always a client that can't afford a complete security
> systems.
>
> On the mainframe, only few datasets are owned by en users, most of them are
> not significant to the user (ISPF temporary datasets, some "on work" job or
> source code libraries that most of them are on the change management store,
> etc.). How many DB2 data tables can be updated by human clients directly?
> Near if not zero.  So,from the attacker point of view, no much to
> encrypt,unless he get a service account. This is more complex to perform.
>
> and as I always say, security cost you a lot, but if it works, managers
> doesn't see the value of it.
>
> ITschak
>
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to [email protected] with the message: INFO IBM-MAIN
>

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN

Reply via email to