bugtraq - Multiple vulnerabilities in Tine 2.0

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Message-Id: <20111019113758.A89EE2C40161@htbridge.ch>
Date: Wed, 19 Oct 2011 13:37:58 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: Multiple vulnerabilities in Tine 2.0

Vulnerability ID: HTB23050
Reference: https://www.htbridge.ch/advisory/multiple_vulnerabilities_in_tine_2_0.html
Product: Tine 2.0
Vendor: Metaways Infosystems GmbH ( http://www.tine20.org ) 
Vulnerable Version: Maischa (2011/05) and probably prior
Tested Version: Maischa (2011/05)
Vendor Notification: 28 September 2011 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Fixed by Vendor
Risk level: Medium 
Credit: High-Tech Bridge SA Security Research Lab ( https://www.htbridge.ch/advisory/ ) 

Vulnerability Details:
High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in Tine 2.0, which can be exploited to perform cross-site scripting attacks.

1) Input passed via the "lang" GET parameter to /library/idnaconvert/example.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]/library/idnaconvert/example.php?lang=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

2) Input appended to the URL after /library/idnaconvert/example.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 an affected site

The following PoC is available:

http://[host]/library/idnaconvert/example.php/%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Successful exploitation of the vulnerabilities requires that Apache's directive "AcceptPathInfo" is set to "on" or "default" (default value is "default") 

3) Input appended to the URL after /library/phpexcel/phpexcel/shared/jama/docs/download.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 an affected site

The following PoC is available:

http://[host]/library/phpexcel/phpexcel/shared/jama/docs/download.php/%27%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Successful exploitation of the vulnerabilities requires that Apache's directive "AcceptPathInfo" is set to "on" or "default" (default value is "default") 
Solution: Upgrade to the most recent version
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.