Re: Flaw in Microsoft Domain AccountCachingAllows Local Workstation Admins to TemporarilyEscalate PrivilegesandLogin as Cached Domain Admin Accounts (2010-M$-002)

["David Gillett" <gillettdavid () fhda edu>]

If our users hadn't been local admins (not my choice), they would not have
been able to eject Domain Admins from the Local Admins group in the first
place....

David Gillett

-----Original Message-----
From: Thor (Hammer of God) [mailto:thor () hammerofgod com]
Sent: Monday, December 13, 2010 10:49
To: David Gillett; 'George Carlson'; bugtraq () securityfocus com;
full-disclosure () lists grok org uk
Subject: RE: [Full-disclosure] Flaw in Microsoft Domain AccountCachingAllows
Local Workstation Admins to TemporarilyEscalate PrivilegesandLogin as Cached
Domain Admin Accounts (2010-M$-002)

You made all domain users local admin?  Or did you do some sort of RUNAS in
the logon script?

> -----Original Message-----
> From: David Gillett [mailto:gillettdavid () fhda edu]
> Sent: Monday, December 13, 2010 10:16 AM
> To: Thor (Hammer of God); 'George Carlson'; bugtraq () securityfocus com;
> full-disclosure () lists grok org uk
> Subject: RE: [Full-disclosure] Flaw in Microsoft Domain Account
> CachingAllows Local Workstation Admins to Temporarily Escalate
> Privileges andLogin as Cached Domain Admin Accounts (2010-M$-002)
>
> > If I take the domain admin out of my local administrators, they can't
> > do
> anything.  Done.
>
>  Back when I did AD/domain support, all domain user accounts got a
> profile that included a trivial script to re-add Domain Admins to the
> Local Admins group.  So this kind of local removal shenanigans lasted
> only until the user next logged into the domain.
>
> David Gillett

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