full-disclosure - Re: JavaScript get Internal Address (thanks to DanBUK)

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Message-ID: <44DDC004.6070102@prohest.com>
Date: Sat, 12 Aug 2006 13:48:20 +0200
From: Martin Dipo Zimmermann <mdz@...hest.com>
To: "pdp (architect)" <pdp.gnucitizen@...glemail.com>
Cc: full-disclosure@...ts.grok.org.uk, pen-test@...urityfocus.com,
	bugtraq@...urityfocus.com, webappsec@...urityfocus.com,
	Daniel Bartlett <dan@...ox.org>
Subject: Re: JavaScript get Internal Address (thanks to
	DanBUK)

It appears that your scripts only result is 192.168.1.3 (tested on 5 
sites). Dont think its quite ready to fly yet. But very interesting idea.

BR

Martin

pdp (architect) skrev:
> http://www.gnucitizen.org/projects/javascript-address-info
> http://f-box.org/~dan/jstest.html
>
> The following technique was brought to me by DanBUK
> (http://f-box.org/~dan/). Dan managed to find the internal IP address
> of the visiting client by establishing a socket between local host and
> the remote web server. Upon success the socket populates its structure
> with all kinds of useful information among some of which are the
> internal IP address and the hostname.
>
> http://www.gnucitizen.org/projects/javascript-address-info/addressinfo.js
>
> This technique requires Java, however I think that It should be
> possible to achieve similar result by invoking special ActionScript
> methods from Flash.
>
> POC can be found on the url above.
>

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