[secdir] secdir review of draft-ietf-mpls-deprecate-bgp-entropy-label-01

Scott Kelly <scott@hyperthought.com> Sun, 26 October 2014 13:55 UTC

Return-Path: <scott@hyperthought.com>
X-Original-To: secdir@ietfa.amsl.com
Delivered-To: secdir@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com []) by ietfa.amsl.com (Postfix) with ESMTP id 7B5D71A87B3 for <secdir@ietfa.amsl.com>; Sun, 26 Oct 2014 06:55:56 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.001
X-Spam-Status: No, score=-0.001 tagged_above=-999 required=5 tests=[BAYES_20=-0.001, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=unavailable
Received: from mail.ietf.org ([]) by localhost (ietfa.amsl.com []) (amavisd-new, port 10024) with ESMTP id GzToKQJJJWfS for <secdir@ietfa.amsl.com>; Sun, 26 Oct 2014 06:55:55 -0700 (PDT)
Received: from smtp122.ord1c.emailsrvr.com (smtp122.ord1c.emailsrvr.com []) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6A08C1A87AF for <secdir@ietf.org>; Sun, 26 Oct 2014 06:55:55 -0700 (PDT)
Received: from localhost (localhost.localdomain []) by smtp24.relay.ord1c.emailsrvr.com (SMTP Server) with ESMTP id BD0A08011B; Sun, 26 Oct 2014 09:55:54 -0400 (EDT)
X-Virus-Scanned: OK
Received: by smtp24.relay.ord1c.emailsrvr.com (Authenticated sender: scott-AT-hyperthought.com) with ESMTPSA id 13E4A800F7; Sun, 26 Oct 2014 09:55:53 -0400 (EDT)
X-Sender-Id: scott@hyperthought.com
Received: from [] (c-76-21-94-29.hsd1.ca.comcast.net []) (using TLSv1 with cipher AES128-SHA) by (trex/5.3.2); Sun, 26 Oct 2014 13:55:54 GMT
From: Scott Kelly <scott@hyperthought.com>
Content-Type: text/plain; charset="windows-1252"
Content-Transfer-Encoding: quoted-printable
Message-Id: <34795D44-2515-469E-BBBD-EB269D17BD59@hyperthought.com>
Date: Sun, 26 Oct 2014 06:55:52 -0700
To: "secdir@ietf.org" <secdir@ietf.org>, iesg@ietf.org, draft-ietf-mpls-deprecate-bgp-entropy-label.all@tools.ietf.org
Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\))
X-Mailer: Apple Mail (2.1878.6)
Archived-At: http://mailarchive.ietf.org/arch/msg/secdir/zNKLKgSZW601dpmljCOuC45aMIc
Subject: [secdir] secdir review of draft-ietf-mpls-deprecate-bgp-entropy-label-01
X-BeenThere: secdir@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Security Area Directorate <secdir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/secdir>, <mailto:secdir-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/secdir/>
List-Post: <mailto:secdir@ietf.org>
List-Help: <mailto:secdir-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/secdir>, <mailto:secdir-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 26 Oct 2014 13:55:56 -0000

I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG.  These comments were written primarily for the benefit of the security area directors.  Document editors and WG chairs should treat these comments just like any other last call comments.

This draft deprecates a BGP attribute. The security considerations section says that attacks on the attribute require the attacker to be part of the control plane, where they can do many other things, and this is not significantly changed by deprecating the attribute (actually, it doesn’t say precisely that, but I think that’s what it implies).

I’m not a routing expert, but that sounds right to me. I see no issues with this draft.