full-disclosure - Some VNC doubts : access server behind TCP/IP proxy or gateways

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Date: Tue Jul  5 15:21:27 2005
From: j.schipper at math.uu.nl (Joachim Schipper)
Subject: Some VNC doubts : access server behind TCP/IP
	proxy or gateways

On Tue, Jul 05, 2005 at 10:56:09AM +0530, Aditya Deshmukh wrote:
> Hi List,

> Is there a way something like reverse shell that allows someone to connect
> to a VNC server, behind gateway and through firewalls without opening any
> holes in it or a tcp/ip proxy that is proxy that does not allow connections
> from the internet ?

VNC does support 'reverse shells'. Look in the manual for your
particular version.

You would need to open one or more ports on your company's firewall, but
that isn't too big a problem, is it? Just tunnel it over something
reasonably safe, and tell the helpdesk not to use 'priviliged' machines
for incoming calls...

		Joachim