Re: command-line reverse connection tunnel?
From: Ivan Buetler (ivan.buetler@csnc.ch)
Date: 12/20/02
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- In reply to: Nick Jacobsen: "command-line reverse connection tunnel?"
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From: Ivan Buetler <ivan.buetler@csnc.ch> To: <pen-test@securityfocus.com> Date: Fri, 20 Dec 2002 17:03:33 +0100
pls. checkout the TCP/IP GenderChanger
http://www.csnc.ch/downloads/docs/techdocs/TCP-IP_GenderChanger_CSNC_V1.0.pdf
or the famous SOCAT (for ux) utility
Ivan
On Friday 20 December 2002 03:07, Nick Jacobsen wrote:
> As to the subject, I don't know how else to describe what I need in simple
> words :)
>
> I am hoping one of you might have an idea on how to implement the
> following, keeping in mind that everything MUST be done using a
> command-line only. I have a machine ("SERVER1") behind a firewall that lets
> in only port 80, on which there is an HTTP server, but lets out all
> traffic. I need to connect my machine ("CLIENT") to that server's Remote
> Desktop, which runs on port 3389. I have command line access to the remote
> machine by sending a reverse command prompt. So, the question is, what
> tools are out there that would let me create a tunnel as follows:
>
> SERVER1 ----> CLIENT1(port whatever) <---- CLIENT1(Listener port 3389)
> CLIENT1(RDP client program) -----> CLIENT1(port 3389) <- Existing Pipe ->
> SERVER1(port 3389)
>
> To explain, I need a program on SERVER1 that creates a connection to
> CLIENT1. the connection that is created to CLIENT1 then needs to listen on
> port 3389. When CLIENT1 recieves a connection, it needs to pass it through
> the existing pipe, and SERVER1 needs to connect to itself on port 3389.
>
> Sort of confusing, I know, and any other suggestions would be welcome, with
> the stipulation that, again, SERVER1 can only accept outside connections
> from port 80, but can make connection to any computer.
>
> Thanks,
> Nick Jacobsen
> Ethics Design
> nick@ethicsdesign.com
>
>
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-- _____________________________________________________________ Ivan Buetler Compass Security Network Computing AG, CSNC Tel: +41 55 214 41 62 Fax: +41 55 214 41 61 E-mail: ivan.buetler@csnc.ch Web site: http://www.csnc.ch/ PGP: 8511 1194 E7DA BFB0 596C 4446 4CCA 337D GnuPGP: 5F2B AA5F C435 F60A FE96 CA33 54C1 630D E77D 1B48 "Security Review - Penetration Testing" _____________________________________________________________ ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
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