IETF Logo Mail Archive

Re: [quicwg/base-drafts] Require the client to detect partly bogus version negotiation packets (#593)

ekr <notifications@github.com> Wed, 07 June 2017 14:20 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0A78312EC53 for <quic-issues@ietfa.amsl.com>; Wed, 7 Jun 2017 07:20:06 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -7.019
X-Spam-Level:
X-Spam-Status: No, score=-7.019 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WYGTIAkQVUzB for <quic-issues@ietfa.amsl.com>; Wed, 7 Jun 2017 07:20:04 -0700 (PDT)
Received: from github-smtp2a-ext-cp1-prd.iad.github.net (github-smtp2-ext7.iad.github.net [192.30.252.198]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AE93012EC6F for <quic-issues@ietf.org>; Wed, 7 Jun 2017 07:20:03 -0700 (PDT)
Date: Wed, 07 Jun 2017 07:20:03 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1496845203; bh=sQndcyB5YhqL80d2zFXIS2FOnO1bdqPW7VdwEgKJZ80=; h=From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=iGsVoT/GEoFqerYlsxYthTcXTBo1R7UyuMt6/Q2mFMv6EK+sCqdnD3noywSxdea5a Pihx//2eux4uOtXSljktjWPOl+a/k2I43h1heuPoy9Y33meqYnn/qEYVLU3xiXdlTr FVRG0F8Xqj0QYKMrkTrbH0dIgMFruXvRWLeuSATk=
From: ekr <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4abdb7fdade96ed671e9d8d6701b1a3be57cff7287a92cf00000001154fcd9392a169ce0df0aa66@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/593/c306809586@github.com>
In-Reply-To: <quicwg/base-drafts/pull/593@github.com>
References: <quicwg/base-drafts/pull/593@github.com>
Subject: Re: [quicwg/base-drafts] Require the client to detect partly bogus version negotiation packets (#593)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_59380b93cd7b_166543fae4e8edc30557f"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: ekr
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/lsUkU90OEOmpU5T80v9UXm8v-lQ>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.22
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 07 Jun 2017 14:20:06 -0000

I had missed that line.

With that said, I think we want a general defense against packet injection
(cf. https://github.com/quicwg/base-drafts/issues/554)

On Wed, Jun 7, 2017 at 4:03 PM, Mike Bishop <notifications@github.com>
wrote:

> I'm not clear why this is an improvement. We currently have:
>
> A client MUST ignore a Version Negotiation packet that lists the client’s
> chosen version.
>
> If we define a packet which causes us to just bail, it becomes very easy
> to disrupt handshakes by packet injection. Whereas ignoring the
> potentially-malicious packet and waiting for a timeout gives a chance to
> succeed.
>
> —
> You are receiving this because you authored the thread.
> Reply to this email directly, view it on GitHub
> <https://github.com/quicwg/base-drafts/pull/593#issuecomment-306804580>,
> or mute the thread
> <https://github.com/notifications/unsubscribe-auth/ABD1oZ5P51nan0KEg23vDErw93l5PN3Pks5sBq3AgaJpZM4NxRkj>
> .
>


-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/593#issuecomment-306809586

v2.39.1 | Report a Bug | By Email | System Status