IETF Logo Mail Archive

Re: QUIC Version Negotiation Extension

Mikkel Fahnøe Jørgensen <mikkelfj@gmail.com> Mon, 04 November 2019 23:11 UTC

Return-Path: <mikkelfj@gmail.com>
X-Original-To: quic@ietfa.amsl.com
Delivered-To: quic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9B7741208D8 for <quic@ietfa.amsl.com>; Mon, 4 Nov 2019 15:11:41 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.997
X-Spam-Level:
X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 kOIQ0mLYdnu9 for <quic@ietfa.amsl.com>; Mon, 4 Nov 2019 15:11:40 -0800 (PST)
Received: from mail-ed1-x52a.google.com (mail-ed1-x52a.google.com [IPv6:2a00:1450:4864:20::52a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DD1091207FB for <quic@ietf.org>; Mon, 4 Nov 2019 15:11:39 -0800 (PST)
Received: by mail-ed1-x52a.google.com with SMTP id l25so14548503edt.6 for <quic@ietf.org>; Mon, 04 Nov 2019 15:11:39 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:in-reply-to:references:mime-version:date:message-id:subject:to :cc; bh=yMFhNgDFKAbUmye4oqFPkTCBGLBhldVp2sjYWy9nSqI=; b=En+BF9F33jcdK20YQmm863ip22lbIS5Yno6D8m6jxfyuaLxRyWCQasldoPCaYIdqkl e+xLAoGB6ylMnDmgF3h6HDrDt8QryB7uNJes0Eai5WMCvo+bk3nei4zVvcMbB8v6gSWD 2sXFn6f0DAHF4QBHaZbROCf8r+u+7F85ui30z1vcwdB5fmNIPi+JFJoHPAlWVQlnIGBA 71yiceSMDNmBVhA1pY+LCRVuNRXYm4CFjx5/itQIuupgEW0E/nenJHoTWcp0YdiSlaQl +IyTCEsYSCF91mcvxAVQX7maFS2caKMx7hOfv2pw9sN/1mKROrnRUbuagx2xOMGD3caf QSMA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:in-reply-to:references:mime-version:date :message-id:subject:to:cc; bh=yMFhNgDFKAbUmye4oqFPkTCBGLBhldVp2sjYWy9nSqI=; b=ITAce+NYytK8r3bKsRz20KTRpsq3CRtBfHUQWE4L+vVZIrkuXaV8b15Oyn2hJdoFeZ YHE+QUkV7QU4o3LCzUbsDugo8QxkNXF/xdRkrQvDk91jDyOhtujPTKztP2YoAUoeEZg2 qcARuwMU/w+6IEA2htbUk9NBqAVVInyn3aC8Z7+VTKqM7G/rF0I2c/68EOQjm85YhDyh wczE/sA4Ip0i+1/UvFeeBCOoAAv2oXbCel68QQWkp92QhzJc3NiH7l3vOAbhwpwxW0cR DvQz1lSzxI0GliKbFb5KhHYqruHll9uQmBjKxub2giESkV4chMMzCVzeZkNLPLjqWF1J DKWQ==
X-Gm-Message-State: APjAAAXgf87hQRKyx1R0fjhwdQMDgweZLSkB+sVrAC3JfF4ceYiAXXDq 87tWe6/EWB3U5WXpdxAnNY0Vf8NsL6DBMG0QJlY=
X-Google-Smtp-Source: APXvYqy/cqTBmFCpXAEgoELZBSk9Koqkv+mofcRIlHmE0jIL8LKtwf/npdJ/AOWps82mS61tociMrg/3KG5t75gj38w=
X-Received: by 2002:a17:906:2961:: with SMTP id x1mr26397743ejd.91.1572909098492; Mon, 04 Nov 2019 15:11:38 -0800 (PST)
Received: from 1058052472880 named unknown by gmailapi.google.com with HTTPREST; Tue, 5 Nov 2019 00:11:38 +0100
From: Mikkel Fahnøe Jørgensen <mikkelfj@gmail.com>
In-Reply-To: <CAN1APdczRvpargzKELJXOgYg1Yp+iv-5v_7RbvJZMWNHFDqCrw@mail.gmail.com>
References: <CAPDSy+4wrhqejh9k8=G7W267EgcT5Z2sDK7ZBGKtNn5kkbXGfg@mail.gmail.com> <CAN1APdcZv-MtwRT77++r6EKdzJUc1NKEJfY4CZeOSaK50nPZYg@mail.gmail.com> <CAPDSy+5obMbiLDKYKXXg1ZthoMqyg60KD+6HR69CQqiEHb6W7g@mail.gmail.com> <CAN1APdence3-Hme+q-B_tasXJJpdxMqFpYFuR0gOgM8tMc-HNQ@mail.gmail.com> <CAPDSy+6y2gQmiCdLhVXXU3d0ER=mt7+R0s5cA=EAH3HfT+k_JA@mail.gmail.com> <CAN1APdczRvpargzKELJXOgYg1Yp+iv-5v_7RbvJZMWNHFDqCrw@mail.gmail.com>
X-Mailer: Airmail (420)
MIME-Version: 1.0
Date: Tue, 05 Nov 2019 00:11:38 +0100
Message-ID: <CAN1APdfHKdUM5HWmNLV1quF5++DOwvUCH8nD+u1EVerWNQg5mg@mail.gmail.com>
Subject: Re: QUIC Version Negotiation Extension
To: David Schinazi <dschinazi.ietf@gmail.com>
Cc: QUIC <quic@ietf.org>
Content-Type: multipart/alternative; boundary="0000000000001466a105968d7064"
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic/ONO7-71dCoT_l0qFo6t7vIWHSjc>
X-BeenThere: quic@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Main mailing list of the IETF QUIC working group <quic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic>, <mailto:quic-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic/>
List-Post: <mailto:quic@ietf.org>
List-Help: <mailto:quic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic>, <mailto:quic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 04 Nov 2019 23:11:42 -0000

Below

On 5 November 2019 at 00.07.01, Mikkel Fahnøe Jørgensen (mikkelfj@gmail.com)
wrote:

So this is where I’m not 100% on how it works, but VNEG packet does, at
least in principle, allow for a return destination CID, so the next Initial
packet can use that destination instead of a random original CID. And
likewise, if the response is not via VNEG, the servers initial can the same
(on known versions).


I came to think that because VNEG is open, an attacker could inject a VNEG
with a specific desitination CID to multiple clients and those trigger an
indirect flooding attack by concentrating traffic via previously aquired
destination CIDs. Because the servers router would/should randomize
unauthenticated CIDs an attacker cannot just inject a random CID.

v2.23.0 | Report a Bug | By Email