full-disclosure - [SECURITY] - Jzip (.zip) Unicode bof Vulnerability

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Date: Tue, 6 Apr 2010 22:11:50 +1000
From: Steven Seeley <seeleymagic@...mail.com>
To: <full-disclosure@...ts.grok.org.uk>, <secalert@...urityreason.com>,
	<vuln@...unia.com>
Cc: corelan.team@...elan.be
Subject: [SECURITY] - Jzip (.zip) Unicode bof Vulnerability


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|                                       http://www.corelan.be:8800 |
|                                              security@...elan.be |
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|-------------------------------------------------[ EIP Hunters ]--|

Advisory : CORELAN-10-021
Disclosure date : 6th Apr 2010

0x00 : Vulnerability information
——————————–

[*] Product : Jzip
[*] Version : 1.3
[*] Vendor : http://www.jzip.com/
[*] URL : http://download.jzip.com/jZipV1.exe
[*] Type of vulnerability : Local Stack Overflow
[*] Risk rating : Low
[*] Issue fixed in version : none
[*] Vulnerability discovered by : mr_me
[*] Greetings to : The Corelan Security Team (http://www.corelan.be:8800/index.php/security/corelan-team-members/)

0x01 : Vendor description of software
————————————-
>>From the vendor website:

- Create, open and extract Zip, TAR, GZip and 7-Zip. Open and extract from RAR and ISO.
- jZip is absolutely FREE for everybody, home and enterprise users
- jZip is an easy to use and fast archiving software
- jZip is based on proven 7-Zip technology by Igor Pavlov

0x02 : Vulnerability details
—————————-
Local Stack Overflow:

When the application receives a malicious .zip file it can cause a buffer overflow in the 'filename' buffer of the application, resulting in a denial of service. Code execution may still be possible.

0x03 : Vendor communication
—————————
[*] 27th Mar, 2010 : Vendor contacted
[*] 3rd Apr, 2010 : Vendor reminded of vulnerability
[*] 6th Apr, 2010 : No contact
[*] 6th Apr, 2010 : Public Disclosure

0x04 : Exploit/PoC
——————
http://net-ninja.net/blog/media/blogs/b/exploits/jzip.php.txt
 		 	   		  
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