[ssm] Re: FYI: Updated SSM-capable applications

Ross Finlayson <finlayson@live.com> Wed, 23 April 2003 23:56 UTC

Received: from www1.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA15198 for <ssm-archive@odin.ietf.org>; Wed, 23 Apr 2003 19:56:16 -0400 (EDT)
Received: (from mailnull@localhost) by www1.ietf.org (8.11.6/8.11.6) id h3NNwbi10382 for ssm-archive@odin.ietf.org; Wed, 23 Apr 2003 19:58:37 -0400
Received: from ietf.org (odin.ietf.org [132.151.1.176]) by www1.ietf.org (8.11.6/8.11.6) with ESMTP id h3NNwa810379 for <ssm-web-archive@optimus.ietf.org>; Wed, 23 Apr 2003 19:58:36 -0400
Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA15192 for <ssm-web-archive@ietf.org>; Wed, 23 Apr 2003 19:55:45 -0400 (EDT)
Received: from ietf-mx ([132.151.6.1]) by ietf-mx with esmtp (Exim 4.12) id 198U7o-0001DH-00 for ssm-web-archive@ietf.org; Wed, 23 Apr 2003 19:58:04 -0400
Received: from ietf.org ([132.151.1.19] helo=www1.ietf.org) by ietf-mx with esmtp (Exim 4.12) id 198U7o-0001DE-00 for ssm-web-archive@ietf.org; Wed, 23 Apr 2003 19:58:04 -0400
Received: from www1.ietf.org (localhost.localdomain [127.0.0.1]) by www1.ietf.org (8.11.6/8.11.6) with ESMTP id h3NNuM810309; Wed, 23 Apr 2003 19:56:22 -0400
Received: from ietf.org (odin.ietf.org [132.151.1.176]) by www1.ietf.org (8.11.6/8.11.6) with ESMTP id h3NNqU810210 for <ssm@optimus.ietf.org>; Wed, 23 Apr 2003 19:52:30 -0400
Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA15104 for <ssm@ietf.org>; Wed, 23 Apr 2003 19:49:39 -0400 (EDT)
Received: from ietf-mx ([132.151.6.1]) by ietf-mx with esmtp (Exim 4.12) id 198U1u-0001Bn-00 for ssm@ietf.org; Wed, 23 Apr 2003 19:51:58 -0400
Received: from ns.live.com ([66.80.62.34]) by ietf-mx with esmtp (Exim 4.12) id 198U1t-0001Bj-00 for ssm@ietf.org; Wed, 23 Apr 2003 19:51:57 -0400
Received: from ns.live.com (localhost.live.com [127.0.0.1]) by ns.live.com (8.12.9/8.12.5) with ESMTP id h3NNqMRG001438; Wed, 23 Apr 2003 16:52:23 -0700 (PDT) (envelope-from rsf@ns.live.com)
Received: (from rsf@localhost) by ns.live.com (8.12.9/8.12.3/Submit) id h3NNqMGk001437; Wed, 23 Apr 2003 16:52:22 -0700 (PDT)
Message-Id: <4.3.1.1.20030423163746.00c5a940@laptop-localhost>
X-Sender: rsf@laptop-localhost
X-Mailer: QUALCOMM Windows Eudora Version 4.3.1
Date: Wed, 23 Apr 2003 16:48:17 -0700
To: ssm@ietf.org, mboned@network-services.uoregon.edu
From: Ross Finlayson <finlayson@live.com>
In-Reply-To: <86495EF6-7585-11D7-92AE-0003936D71EA@multicasttech.com>
References: <4.3.1.1.20030423030316.00b66140@laptop-localhost>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format="flowed"
Subject: [ssm] Re: FYI: Updated SSM-capable applications
Sender: ssm-admin@ietf.org
Errors-To: ssm-admin@ietf.org
X-BeenThere: ssm@ietf.org
X-Mailman-Version: 2.0.12
Precedence: bulk
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/ssm>, <mailto:ssm-request@ietf.org?subject=unsubscribe>
List-Id: Source-Specific Multicast <ssm.ietf.org>
List-Post: <mailto:ssm@ietf.org>
List-Help: <mailto:ssm-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/ssm>, <mailto:ssm-request@ietf.org?subject=subscribe>

At 05:17 AM 4/23/03, Marshall Eubanks wrote:
>Is there any authentication applied to the unicast SSM rtcp reports, which
>can be used for a denial of service attacks ?

No, because there's no *general* way of doing this.  If anyone using this 
software wants to add in their own, application-specific mechanism for 
authenticating the validity of each incoming unicast Reception Report, 
before 'reflecting' it back to the group, then they can easily do so (in 
"liveMedia/RTCP.cpp").

         Ross.

_______________________________________________
ssm mailing list
ssm@ietf.org
https://www1.ietf.org/mailman/listinfo/ssm