bugtraq - Re: phpBB 2.0.17 (and other BB systems as well) Cookie disclosure exploit.

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Message-ID: <Pine.LNX.4.44.0510291809570.15701-100000@bugsbunny.castlecops.com>
Date: Sat, 29 Oct 2005 18:10:46 -0400 (EDT)
From: Paul Laudanski <zx@...tlecops.com>
To: Nicob <nicob@...ob.net>
Cc: webappsec@...urityfocus.com, bugtraq@...urityfocus.com,
	full-disclosure@...ts.grok.org.uk
Subject: Re: phpBB 2.0.17 (and other BB systems as well)
 Cookie disclosure exploit.

On Thu, 27 Oct 2005, Nicob wrote:

> Le mardi 25 octobre 2005 à 17:02 -0400, Paul Laudanski a écrit :
> > 
> > Anyone have other ideas on this?  I've already implemented some code
> > to validate file input and its working.  But is this the right
> > approach?
> 
> I'm not sure to understand what you're talking about but if you're
> trying to positively validate that file XYZ is an image and not a PHP
> file, you're asking for trouble :
> 
> $> wget http://nicob.net/mirrors/blowjob.jpg

I'm not contesting your reply, I agree with it an mentioned it earlier.  
Remote validation is a problem.  So then validation should be done locally 
(attach the image locally).

-- 
Paul Laudanski, Microsoft MVP Windows-Security
CastleCops(SM), http://castlecops.com

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