bugtraq - Re: RealVNC 4.1.1 Remote Compromise

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Message-ID: <20060515163655.GA7841@melpomene.jschipper.dynalias.net>
Date: Mon, 15 May 2006 18:36:56 +0200
From: Joachim Schipper <j.schipper@...h.uu.nl>
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: Re: RealVNC 4.1.1 Remote Compromise

On Mon, May 15, 2006 at 07:58:10AM -0500, Dixon, Wayne wrote:
> So what can be done about this exploit?  Does 4.1.2 protect against this
> vulnerability?  And what other mitigation procedures are available for
> this?

The best solution is not to run a VNC service using no more than it's
own authentication. Most offer only password auth, which is quite simply
insufficient. Use some auth scheme based on certificates or somesuch -
ssh, IPSec and OpenVPN all offer this capability.

		Joachim

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