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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date: Wed, 31 Oct 2007 09:10:53 +0100
From: Nicolas RUFF <nicolas.ruff@...il.com>
To: Kristian Erik Hermansen <kristian.hermansen@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Microsoft Windows default ZIP handler bug

> However, I put together a Flash video showing the bug.  It may not be
> exploitable, but I also haven't been keeping up with the latest bad
> pointer / alternate code path research stuff.  Maybe someone can do
> some ninjitsu code exec using this...
	
	Hello,

I had a quick look with SysInternals' ProcMon.

Given a B.ZIP file inside an A.ZIP file, the sequence is roughly the
following:

- User clicks on A.ZIP
- Explorer opens A.ZIP and extracts content into a temporary "A" directory
- User clicks on B.ZIP inside A.ZIP
- Explorer opens B.ZIP and extracts content into a temporary "B" directory
- Since A.ZIP is no longer referenced, temporary directory "A" is deleted
- User clicks "back"
- "A" directory not found, explorer closing

I feel you'll have a hard time trying to control EIP ;)

Regards,
- Nicolas RUFF

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/