full-disclosure - Re: Microsoft Windows default ZIP handler bug

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Message-ID: <fe37588d0710151240u127162cawf6552abc7a8391eb@mail.gmail.com>
Date: Mon, 15 Oct 2007 12:40:48 -0700
From: "Kristian Erik Hermansen" <kristian.hermansen@...il.com>
To: 3APA3A <3APA3A@...urity.nnov.ru>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Microsoft Windows default ZIP handler bug

On 10/15/07, 3APA3A <3APA3A@...urity.nnov.ru> wrote:
> Can  not reproduce it on patched Windows XP. May be it's DynaZIP library
> buffer overflows fixed with MS04-34.

I think it should work.  Try this and let me know if the ZIP handler crashes...
* Open IIIIIIIIJJJJJJJJKKKKKKKKLLLLLLLL.zip
* Then the EEEEEEEEFFFFFFFFGGGGGGGGHHHHHHHH.zip embedded within
* Click the "UP-DIRECTORY" button
* Crash ...

It may be possible to exploit this without any user interaction, for
instance, while extraction is occurring.  Or, it may also be possible
to integrate a path similar to the '..' tar traversal that was
published recently.  I have no idea.  If you find that it does crash
on your latest updated XP, let us know...
-- 
Kristian Erik Hermansen

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