full-disclosure - XP Remote Desktop Remote Activation

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Message-ID: <6f5565af04100212171530ef41@mail.gmail.com>
From: fixer907 at gmail.com (Fixer)
Subject: XP Remote Desktop Remote Activation

That I can't say as I actually developed this several months ago and
just now released it because of SP2, which makes it a bit harder to
pull this off.  You're absolutely right that when you remotely access
the machine that it locks out the user.  The upside (or maybe
downside) is that alot of home users still leave their machines on all
night so that's not a big deal, just use NET TIME to check the local
time and run RD when they aren't likely to be on.  Worst case is that
you'll get booted when they reset the machine :-(

Fixer


On Sat, 2 Oct 2004 12:56:24 -0500, RandallM <randallm@...mail.com> wrote:
> Would access to command shell be accomplished via the recent ZoneID hole if
> such Administration password access is not available? Or perhaps even with
> the launching
> Of the MS04-028 exploit? Of course any Terminal usage on home pc's are
> noticed because users
> are locked out. Now terminal servers are a differnet story but user
> intervention is still needed.
> 
> thank you
> Randall M
> 
> <|>--__--__--
> <|>
> <|>Message: 3
> <|>Date: Fri, 1 Oct 2004 23:50:45 -0500
> <|>From: Fixer <fixer907@...il.com>
> <|>Reply-To: Fixer <fixer907@...il.com>
> <|>To: full-disclosure@...ts.netsys.com
> <|>Subject: [Full-Disclosure] XP Remote Desktop Remote Activation
> <|>
> <|>------=_Part_505_31077403.1096692645033
> <|>Content-Type: text/plain; charset=US-ASCII
> <|>Content-Transfer-Encoding: 7bit
> <|>Content-Disposition: inline
> <|>
> <|>XP Remote Desktop Remote Activation
> <|>
> <|>
> <|>Information
> <|>____________________________________________________________________
> <|>Windows XP Professional provides a service called Remote Desktop,
> <|>which allows a user to remotely control the desktop as if he or she
> <|>were in front of the system locally (ala VNC, pcAnywhere, etc.).
> <|>
> <|>By default, Remote Desktop is shipped with this service
> <|>turned off and
> <|>only the Administrator is allowed access to this service.  It is
> <|>possible, however, to modify a series of registry keys that may allow
> <|>a malicious user who has already gained a command shell to activate
> <|>Remote Desktop and add a user they have created for
> <|>themselves as well
> <|>as to hide that user so that it will not show up as a user in the
> <|>Remote Desktop user list.  The instructions for this are attached.
> <|>Additionally, I have listed a sample .reg file of the type that is
> <|>discussed in the instructions below.
> <|>_____________________________________________________________________
> <|>
> 
> <SNIP>
> 
> <|>--__--__--
> <|>
> <|>Message: 6
> <|>From: "Dominick Baier" <seclists@...stprivilege.com>
> <|>To: "'Fixer'" <fixer907@...il.com>,
> <|><full-disclosure@...ts.netsys.com>
> <|>Subject: RE: [Full-Disclosure] XP Remote Desktop Remote Activation
> <|>Date: Sat, 2 Oct 2004 17:43:11 +0200
> <|>
> <|>if you have an administrator password for the machine you
> <|>can just use WMIC
> <|>to turn remote desktop on.
> <|>
> <|>wmic /NODE:Server /USER:administrator RDTOGGLE WHERE
> <|>ServerName="Server"
> <|>CALL SetAllowTSConnections 1
> <|>
> <|>End of Full-Disclosure Digest
> <|>
> 
>