Horde Application Framework 3.3.8 Cross Site Scripting

2010-09-0800:00:00

Moritz Naumann

packetstormsecurity.com

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`Hi,  
  
Horde Application Framework v3.3.8 and lower are subject to a cross site  
scripting (XSS) vulnerability.  
  
The icon_browser.php script fails to properly sanitize user supplied  
input to the 'subdir' URL parameter before printing it out as part of a  
HTML formatted error message.  
  
The following URL can be used as a proof of concept:  
  
> [path_to_horde]/util/icon_browser.php?subdir=<body onload="alert('XSS')">&app=horde  
  
Prior authentication is not required for exploitation.  
  
This vulnerability was reported to the Horde Project on 19.05.2010 and  
fixed by Michael M. Slusarz in the frameworks' GIT repository within a week:  
> http://git.horde.org/diff.php/horde/util/icon_browser.php?rt=horde-git&r1=a978a35c3e95e784253508fd4333d2fbb64830b6&r2=9342addbd2b95f184f230773daa4faf5ef6d65e9  
  
Hoping to see an upcoming fixed release (which did not take place)  
I have delayed publication - admittedly too much.  
  
Credits for this discovery:  
  
Moritz Naumann  
Naumann IT Security Consulting, Berlin, Germany  
http://moritz-naumann.com  
  
Moritz  
`

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