bugtraq - Re: iDefense Security Advisory 10.09.07: Microsoft Windows Mail and Outlook Express NNTP Protocol Heap Overflow

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Date: Wed, 10 Oct 2007 21:15:57 +1300
From: Nick FitzGerald <nick@...us-l.demon.co.uk>
To: vulnwatch@...nwatch.org, full-disclosure@...ts.grok.org.uk,
	bugtraq@...urityfocus.com
Subject: Re: iDefense Security Advisory 10.09.07: Microsoft Windows Mail and
 Outlook Express NNTP Protocol Heap Overflow

iDefense Labs wrote:

<<...>>
> V. WORKAROUND
> 
> Deleting the all sub-keys of the following registry keys will remove the
> 'news' and 'snews' protocol handlers:
> 
>   HKEY_CLASSES_ROOT\news\shell
>   HKEY_CLASSES_ROOT\snews\shell

If you want to do a thorough job of such mitigation as a Q&D fix, you 
may also need to nuke the 

   HKEY_CLASSES_ROOT\nntp\shell

entry.

I can't easily test the viability of exploiting this via an nntp:// URI 
just now, but "nntp" is normally registered (at least with OE -- can 
someone check for Windows Mail?) with exactly the same sub-keys and 
values as the "news" and "snews" URI handlers...


Regards,

Nick FitzGerald