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Cross-site request forgery (CSRF) in ocPortal

Advisory ID:HTB22369
Vendor:ocProducts Ltd
Vulnerable Versions:4.3.2 and probably prior
Tested Version:4.3.2
Advisory Publication:May 5, 2010 [without technical details]
Vendor Notification:May 5, 2010
Public Disclosure:May 19, 2010
Vulnerability Type:Cross-Site Request Forgery [CWE-352]
Risk Level:Medium
CVSSv2 Base Score:5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered vulnerability in ocPortal which could be exploited to perform CSRF attacks.

1) Cross-site request forgery (CSRF) ocPortal
The vulnerability exists due to insufficient validation of the request origin in /site/index.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and add arbitrary account to arbitrary group. Successful exploitation might result in complete compromise of the application.

Exploitation example:
<form action="http://host/site/index.php?page=groups&type=add_to&id=2" method="post" >
<input type="hidden" name="username" value="hacker" >

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[1] High-Tech Bridge Advisory HTB22369 - - Cross-site request forgery (CSRF) in ocPortal
[2] ocPortal - - ocPortal is a free and open source content management system (CMS) written in PHP and based on a MySQL backend database.
[3] Common Weakness Enumeration (CWE) - - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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