full-disclosure - [CORELAN]-10-018

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Message-ID: <y2scfdc8cb41004011601p4125e5e4td0063eea4729cd07@mail.gmail.com>
Date: Thu, 1 Apr 2010 16:01:45 -0700
From: Lincoln <lincoln.blogger@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: [CORELAN]-10-018 - TugZip 3.5

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| / /__/ /_/ / /  /  __/ / /_/ / / / /  / /_/  __/ /_/ / / / / / / |
| \___/\____/_/   \___/_/\__,_/_/ /_/   \__/\___/\__,_/_/ /_/ /_/  |
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|                                       http://www.corelan.be:8800 |
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|-------------------------------------------------[ EIP Hunters ]--|

Advisory        : CORELAN-10-018
Disclosure date : April 1st, 2010
http://www.corelan.be:8800/advisories.php?id=CORELAN-10-018


00 : Vulnerability information
 Product : TugZip
 Version : 3.5.0.0 (latest version)
 Vendor : Christian Kindahl / tugzip.com
 URL : http://www.tugzip.com/index.php?page=downloads
 Platform : Windows
 Type of vulnerability : Stack overflow
 Risk rating : High
 Issue fixed in version : <not fixed>
 Vulnerability discovered by : Lincoln
 Corelan Team :
http://www.corelan.be:8800/index.php/security/corelan-team-members/


01 : Vendor description of software
>>From the vendor website:
"TUGZip is a powerful award-winning freeware archiving utility for
Windows that provides support for a wide range of compressed, encoded
and disc-image files, as well as very powerful features; all through
an easy to use application interface and Windows Explorer
integration.Try this great free archiving utility!"


02 : Vulnerability details
When a specially crafted zip file is opened by TugZip, an exception
handler gets overwritten, allowing to trigger arbitraty code
execution. There are a few ways to trigger the vulnerability :

 - open the zip file from within TugZip
 - associate zip files with TugZip and double-click on the zip file
 - associate zip files with TugZip and open a zip file from a URL

No user intervention is required (except for opening the file) to gain
code execution.


03 : Author/Vendor communication
 March 23 2010 : author contacted
 March 28 2010 : sent reminder
 April 1 2010 : No response, public disclosure

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