On Tue, 12 Feb 2008 22:20:09 -0800, George Fogg <[EMAIL PROTECTED]> wrote:

>Here's how MCS/SMCS console command authority works for the "V
>CN(SMCS6001),LOGON=OPTIONAL)" command were talking about.
>
>1.) I can issue this VARY from any MCS or SMCS console that I *didn't* logon
>to (LOGON=OPTIONAL) if AUTH=MASTER is defined in the CONSOLxx parmlib member
>for  the console(s) because the OPERCMDS class check is bypassed, even if
>the OPERCMDS class is active.
>RULE: If I'm not logged on to a MCS/SMCS console then basically,no OPERCMDS
>class checking.

If you're worried about that exposure, though, why would you have any
consoles defined with LOGON(OPTIONAL)?  I would expect you to use
LOGON(AUTOMATIC), and make sure that the auto-logged on ID (the console
name) does not have authority to issue that VARY command.

Thanks for providing the explanations, by the way.

-- 
  Walt Farrell, CISSP
  IBM STSM, z/OS Security Design

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