Home / os / win7

Applicure DotDefender Persistent XSS

Posted on 28 June 2010

<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'><html><head><meta http-equiv='Content-Type' content='text/html; charset=windows-1251'><title>Applicure DotDefender Persistent XSS</title><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon'><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss'></head><body><pre>====================================
Applicure DotDefender Persistent XSS
====================================


Affected Versions: version 4.0
 
Fixed versions: 4.01-3 (and later)
 
Description:
 
Applicure dotDefender is a Web Application Firewall that can be installed on
Windows and Linux servers.
 
 
    From their website (applicure.com):
 
&quot;dotDefender is the market-leading software Web Application Firewall (WAF).
dotDefender boasts enterprise-class security, advanced integration capabilities,
easy maintenance and low total cost of ownership (TCO). dotDefender is the
perfect choice for protecting your website and web applications today. &quot;
 
Credits:
 
These vulnerabilities were discovered during WAF testing by Sandro Gauci of
EnableSecurity. We contacted AppliCure on May 17, 2010 about this vulnerability.
They were already working on a fix.
 
____________________________________________________________________________
 
Technical details:
 
The log viewer facility in dotDefender does not properly htmlencode user
supplied input. This leads to a cross site scripting vulnerability when the log
viewer displays HTTP headers.
 
____________________________________________________________________________
 
Demo:
 
One may use curl and insert headers containing html tags using the --header
switch.
Example:
 
    curl &quot;http://website.org/c?a=&lt;script&gt;&quot; 
    --header &quot;&lt;script&gt;alert(1)&lt;/script&gt;: aa&quot;
 
When the administrator views the log viewer page, his/her web browser will
execute the attacker's javascript.
 
The following demo shows how an attacker can switch off dotDefender in order to
bypass any &quot;protection&quot; offered by the WAF:
 
    http://vimeo.com/12132622
 
Timeline:
 
May 17, 2010: Initial contact
Jun 01, 2010: Release of this advisory


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-06-28]</pre><script type='text/javascript'>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));</script><script type='text/javascript'>try{var pageTracker = _gat._getTracker("UA-12725838-1");pageTracker._setDomainName("none");pageTracker._setAllowLinker(true);pageTracker._trackPageview();}catch(err){}</script></body></html>

 

TOP

Malware :

Exploits :