OSEC

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Multiple XSS in Fork CMS

advisoryhtbridge.ch
Date: Wed Mar 07 2012 - 05:26:12 CST


Advisory ID: HTB23075
Product: Fork CMS
Vendor: Fork CMS
Vulnerable Version(s): 3.2.5 and probably prior
Tested Version: 3.2.5
Vendor Notification: 15 February 2012
Vendor Patch: 28 February 2012
Public Disclosure: 7 March 2012
Vulnerability Type: Cross Site Scripting (XSS)
CVE Reference(s): CVE-2012-1188
Solution Status: Fixed by Vendor
Risk Level: Medium
Credit: High-Tech Bridge SA Security Research Lab ( https://www.htbridge.ch/advisory/ )

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Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in Fork CMS, which can be exploited to perform Cross-Site Scripting (XSS) attacks.

1) Cross-Site Scripting (XSS) in Fork CMS: CVE-2012-1188

1.1 Input passed via the "type" and "querystring" GET parameters to /private/en/error 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 (Proof of Concept) demostrate the vulnerability:

http://[host]/private/en/error?type=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/private/en/error?type=action-not-allowed&querystring=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E.1

1.2 Input passed via the "name" GET parameter to /private/en/locale/index 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 (Proof of Concept) demostrates the vulnerability:

http://[host]/private/en/locale/index?name=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

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Solution:

Upgrade to Fork CMS 3.2.7 or later.

More information:
http://www.fork-cms.com/blog/detail/fork-cms-3-2-7-released

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References:

[1] High-Tech Bridge Advisory HTB23075 - https://www.htbridge.ch/advisory/HTB23075 - Multiple XSS in Fork CMS.
[2] Fork CMS - http://www.fork-cms.com/ - Fork is an open source cms that will rock your world.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.

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Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. 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 web page [1] in the References.