Tine 2.0 Cross Site Scripting

`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.  
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