Re: [Sip] draft-state-sip-relay-attack-00

Theo Zourzouvillys <theo@crazygreek.co.uk> Fri, 06 March 2009 22:29 UTC

Return-Path: <theo@crazygreek.co.uk>
X-Original-To: sip@core3.amsl.com
Delivered-To: sip@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A95243A6917 for <sip@core3.amsl.com>; Fri, 6 Mar 2009 14:29:03 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.713
X-Spam-Level:
X-Spam-Status: No, score=-5.713 tagged_above=-999 required=5 tests=[AWL=0.264, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4125zQ5NJgqw for <sip@core3.amsl.com>; Fri, 6 Mar 2009 14:29:03 -0800 (PST)
Received: from exprod7og109.obsmtp.com (exprod7og109.obsmtp.com [64.18.2.171]) by core3.amsl.com (Postfix) with SMTP id A09023A6911 for <sip@ietf.org>; Fri, 6 Mar 2009 14:29:02 -0800 (PST)
Received: from source ([72.14.220.158]) by exprod7ob109.postini.com ([64.18.6.12]) with SMTP ID DSNKSbGjzU3ly0Q+OFjZbae7KXHAE4xWQ6/m@postini.com; Fri, 06 Mar 2009 14:29:34 PST
Received: by fg-out-1718.google.com with SMTP id 19so586938fgg.9 for <sip@ietf.org>; Fri, 06 Mar 2009 14:29:32 -0800 (PST)
MIME-Version: 1.0
Received: by 10.86.27.9 with SMTP id a9mr2313018fga.49.1236378572724; Fri, 06 Mar 2009 14:29:32 -0800 (PST)
In-Reply-To: <49B1A1E1.8070007@ohlmeier.org>
References: <49AE593F.6080807@iptel.org> <e4c7495a3f98d5a2a85ccf85047515f0.squirrel@www.ohlmeier.com> <1236368519.3762.20.camel@victoria-pingtel-com.us.nortel.com> <49B1A1E1.8070007@ohlmeier.org>
Date: Fri, 06 Mar 2009 22:29:32 +0000
Message-ID: <167dfb9b0903061429r635e3a64i2353a8900fbace37@mail.gmail.com>
From: Theo Zourzouvillys <theo@crazygreek.co.uk>
To: Nils Ohlmeier <lists@ohlmeier.org>
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7bit
Cc: sip@ietf.org
Subject: Re: [Sip] draft-state-sip-relay-attack-00
X-BeenThere: sip@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Session Initiation Protocol <sip.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/sip>
List-Post: <mailto:sip@ietf.org>
List-Help: <mailto:sip-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 06 Mar 2009 22:29:03 -0000

On Fri, Mar 6, 2009 at 10:21 PM, Nils Ohlmeier <lists@ohlmeier.org> wrote:

> Except that a REFER is not relevant for this replay attack

an authenticated OOD REFER may be used to initiate a call with some SIP devices.

 ~ Theo