Paessler - PRTG Traffic Grapher XSS

[Patrick Webster <patrick () aushack com>]

aushack.com - Vulnerability Advisory
-----------------------------------------------
Release Date:
 08-Jun-2010

Software:
 Paessler - PRTG Traffic Grapher
 http://www.paessler.com

 "PRTG Network Monitor runs 24/7 on a Windows-based machine within your
  network, recording network usage parameters. Recorded data is stored in
  a database for historic reports."

Versions tested:
 Paessler PRTG Traffic Grapher v6.2.1.945

Vulnerability discovered:

 HTML / Javascript Injection (XSS)

Vulnerability impact:

        Medium - If an authenticated user was enticed to visit a malicious
         URL, it would be possible to steal the authentication cookie etc.

Vulnerability information:

 The 'url' GET parameter of 'login.htm' is vulnerable.

 Example:

  http://[victim]:8080/login.htm?url=";><script>alert(document.cookie)</script>

References:
 aushack.com advisory
 http://www.aushack.com/201006-prtg.txt

Credit:
 Patrick Webster ( patrick () aushack com )

Disclosure timeline:
 05-Jan-2009 - Discovered during audit.
 06-Jan-2009 - Notified vendor.
 08-Jan-2009 - Vendor releases update 6.2.1.963/964.
 08-Jun-2010 - Disclosure.

EOF