RE: Recent bugtraq postings -- MIDRANGE-L

I am curious what the "whatever" is.  Because it sure isn't just *ALLOBJ 
or group rights.  Like should ROBB13 be able to see ROB on WRKUSRPRF *ALL?

DSPUSRPRF ROBB13
Special authority  . . . . . . . . . . . . :   *NONE
Group profile  . . . . . . . . . . . . . . :   SSA13 
Owner  . . . . . . . . . . . . . . . . . . :   *GRPPRF 
Group authority  . . . . . . . . . . . . . :   *NONE 
Group authority type . . . . . . . . . . . :   *PRIVATE
Supplemental groups  . . . . . . . . . . . :   DEVELOP 

DSPUSRPRF SSA13
Special authority  . . . . . . . . . . . . :   *JOBCTL 
Group profile  . . . . . . . . . . . . . . :   *NONE 
Owner  . . . . . . . . . . . . . . . . . . :   *USRPRF 
Group authority  . . . . . . . . . . . . . :   *NONE 
Group authority type . . . . . . . . . . . :   *PRIVATE
Supplemental groups  . . . . . . . . . . . :   *NONE 

DSPUSRPRF DEVELOP
Special authority  . . . . . . . . . . . . :   *JOBCTL 
                                               *SAVSYS 
Group profile  . . . . . . . . . . . . . . :   *NONE 
Owner  . . . . . . . . . . . . . . . . . . :   *USRPRF 
Group authority  . . . . . . . . . . . . . :   *NONE 
Group authority type . . . . . . . . . . . :   *PRIVATE
Supplemental groups  . . . . . . . . . . . :   *NONE 

DSPOBJAUT ROB *USRPRF
                         Object    ----------Object-----------
User        Group       Authority  Opr  Mgt  Exist  Alter  Ref
*PUBLIC                 USER DEF 
QSECOFR                 *ALL        X    X     X      X     X 
ROB                     USER DEF    X    X 
          ---------------Data---------------
User      Read  Add  Update  Delete  Execute
*PUBLIC          X             X 
QSECOFR    X     X     X       X        X 
ROB        X     X     X       X        X 

Ah-hah!  That's it!  Now if I can only figure out why it is that way.  Or, 
do I just set *public to *exclude and worry about the ramifications later?

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





"John Earl" <john.earl@xxxxxxxxxxxxx> 
Sent by: midrange-l-bounces@xxxxxxxxxxxx
04/22/2005 02:06 PM
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Subject
RE: Recent bugtraq postings






> if you don't
> have Godlike authorities and you try the LDAP "exploit",
> do you still
> get a list of all users?

If you are authorized to read (*USE) a user profile, or you belong to
the same group profile as another user, then the LDAP directory will
display the user name to you. 

But... if you have *USE rights to someone's user profile (whether
because of *ALLOBJ, or Group rights, or whatever), then there are any
number of methods by which you can see the user profile (DSPOBJD,
WRKUSRPRF, IFS links, etc.), so I don't see how this is an "LDAP"
problem. 

And if you have the ability to *USE a profile, you also have the ability
to assume the identity of that profile - which is potentially a HUGE
security problem, but it's a "security configuration" problem and not a
failing of the underlying facilities.

IMHO,

jte


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> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-
> bounces@xxxxxxxxxxxx] On Behalf Of Joe Pluta
> Sent: Friday, April 22, 2005 9:00 AM
> To: 'Midrange Systems Technical Discussion'
> Subject: RE: Recent bugtraq postings
> 
> True (although the older I've gotten the more reticent I
> am to accept
> such authority -- it's plausible deniability <grin>).  But
> if you don't
> have Godlike authorities and you try the LDAP "exploit",
> do you still
> get a list of all users?
> 
> Joe
> 
> > From: rob@xxxxxxxxx
> >
> > Joe, you and I probably have Godlike authority on most
> of the machines
> we
> > work on.  Normal users execution of WRKUSRPRF tells them
> nasty things
> > about their mother.  Their workaround is to do a WRKOBJ
> QUSRSYS/*ALL
> > *MSGQ.
> 
> --
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