full-disclosure - [CORELAN-10-031] - ZipWrangler 1.2 .zip Stack Buffer Overflow

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Date: Sat, 24 Apr 2010 17:26:48 +0200
From: Security <security@...elan.be>
To: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: [CORELAN-10-031] - ZipWrangler 1.2 .zip Stack
	Buffer Overflow


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|  / ___/ __ \/ ___/ _ \/ / __ `/ __ \   / __/ _ \/ __ `/ __ `__ \ |
| / /__/ /_/ / /  /  __/ / /_/ / / / /  / /_/  __/ /_/ / / / / / / |
| \___/\____/_/   \___/_/\__,_/_/ /_/   \__/\___/\__,_/_/ /_/ /_/  |
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|                                       http://www.corelan.be:8800 |
|                                              security@...elan.be |
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|-------------------------------------------------[ EIP Hunters ]--|
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|                 Vulnerability Disclosure Report                  |
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Advisory : CORELAN-10-031
Disclosure date : April 24th, 2010
http://www.corelan.be:8800/advisories.php?id=CORELAN-10-031
 
00 : Vulnerability information
 Product : Zip Wrangler
 Version : 1.20
 Vendor/Author : CursorArts
 URL : http://www.cursorarts.com/ca_zw.html
 Platform : Windows (Tested on XP SP3 fully patched)
 Type of vulnerability : Stack Buffer Overflow
 Risk rating : High
 Issue fixed in version : <not fixed>
 Vulnerability discovered by : TecR0c
 Corelan Team : http://www.corelan.be:8800/index.php/security/corelan-team-members/
 
 
01 : Vendor description of software
>>From the vendor website:
"ZipWrangler: The simple, quick and free way to extract and create your own zip and other archive files.
Use ZipWrangler's Viewer to take a look into these files before you decide whether or not to run or extract the contents.
You can also Run program from within the archive without extracting.
And you can use ZipWrangler to easily create your own compressed files for making them faster to send over the internet or by e-mail"
 
 
 
02 : Vulnerability details
A flaw in how the application handles a overly long zip filename which an attacker can utilize in a manner other
than the designer intended. Since the SE Handler can be overwritten an attacker can take full control over the application flow,
inject and execute arbitrary code on the machine. The attacker will be able to gain the same rights as the user running the application.
 
 
03 : Vendor communication
April 10 : Author contacted
April 18 : Sent reminder
April 25 : No answer, Public disclosure
 
 
04 : Exploit PoC
Download Here : http://www.corelan.be:8800/advisories.php?id=CORELAN-10-031

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