RE: Using a Compromised Router to Capture Network Traffic

From: Jeremy Junginger (jjunginger@interactcommerce.com)
Date: 07/15/02


Date: Mon, 15 Jul 2002 12:45:29 -0700
From: "Jeremy Junginger" <jjunginger@interactcommerce.com>
To: <ad@Dunkel.de>, <Ryan_Moffett@stercomm.com>


Any success with VIPPR?

http://www.phenoelit.de/fr/tools.html

From Phenoelit? I saw these guys at DefCon and they were pretty
awesome.

-Jeremy

-----Original Message-----
From: Axel Dunkel [mailto:ad@Dunkel.de]
Sent: Monday, July 15, 2002 11:52 AM
To: Ryan_Moffett@stercomm.com
Cc: pen-test@securityfocus.com
Subject: RE: Using a Compromised Router to Capture Network Traffic

> Is this hosted on an alternate site other than the geocities site
> which has exceeded the xfer limit?

For a while, I have put it on
http://www.Dunkel.de/download/GRE_sniffing.doc
to help out.

Best regards,
Axel Dunkel
 

> -----Original Message-----
> From: Penetration Testing [mailto:pentest@infosecure.com.au]
> Sent: Monday, July 15, 2002 2:44 PM
> To: pen-test@securityfocus.com
> Subject: Using a Compromised Router to Capture Network Traffic
>
>
> Hi all.
>
> I have recently completed some experimentation into using a captured
> router to sniff network traffic on a remote network. This is in the
> same vein as Gauis' article in Phrack 56 (Things to do in cisco land
> when you are dead).
>
> I have tried to build on Gauis' work in that I terminated the GRE
> tunnel on a Cisco router instead of a *nix machine. I explored a
> couple of possible scenarios for this, the net result being that it is

> possible to remotely capture (bi-directional) network traffic using NO

> customised tools; all that is required is one cisco router with
> vanilla IOS, and a machine that can run snoop or tcpdump.
>
> Anyway, if anyone is interested, the document describing the
> experiment and results is available at
> http://www.geocities.com/david_taylor_au/
> (Word 2000 format). Or, contact me.
>
> Regards,
> Dave Taylor
>
>
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> This list is provided by the SecurityFocus Security Intelligence Alert
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>

---
Systemberatung A. Dunkel GmbH, Gutenbergstr. 5, D-65830 
Kriftel
Tel.: +49-6192-9988-0, Fax: +49-6192-9988-99,   E-Mail: 
ad@Dunkel.de

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