IETF Logo Mail Archive

Re: [radext] Server identity and RFC7585bis (was: Review of draft-ietf-radext-radiusdtls)

Alan DeKok <aland@deployingradius.com> Thu, 11 April 2024 13:15 UTC

Return-Path: <aland@deployingradius.com>
X-Original-To: radext@ietfa.amsl.com
Delivered-To: radext@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 455EEC14F691 for <radext@ietfa.amsl.com>; Thu, 11 Apr 2024 06:15:38 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZSkm9fclJs5c for <radext@ietfa.amsl.com>; Thu, 11 Apr 2024 06:15:33 -0700 (PDT)
Received: from mail.networkradius.com (mail.networkradius.com [62.210.147.122]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C7935C14F68F for <radext@ietf.org>; Thu, 11 Apr 2024 06:15:32 -0700 (PDT)
Received: from smtpclient.apple (unknown [75.98.136.130]) by mail.networkradius.com (Postfix) with ESMTPSA id 97BAE303; Thu, 11 Apr 2024 13:15:29 +0000 (UTC)
Authentication-Results: NetworkRADIUS; dmarc=none (p=none dis=none) header.from=deployingradius.com
Content-Type: text/plain; charset="us-ascii"
Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.1\))
From: Alan DeKok <aland@deployingradius.com>
In-Reply-To: <10347.1712778967@obiwan.sandelman.ca>
Date: Thu, 11 Apr 2024 09:15:27 -0400
Cc: Jan-Frederik Rieckers <rieckers@dfn.de>, radext@ietf.org
Content-Transfer-Encoding: quoted-printable
Message-Id: <7D282A57-B68E-43DA-A6A2-7E14A8C09119@deployingradius.com>
References: <CA9BEA9C-39EF-4764-A0FE-D122413B37F7@deployingradius.com> <18ef8267-474e-49ae-9204-0c6c79d5e50c@dfn.de> <6628c5c8-5071-476f-9ea2-2875d86304e2@dfn.de> <10347.1712778967@obiwan.sandelman.ca>
To: Michael Richardson <mcr+ietf@sandelman.ca>
X-Mailer: Apple Mail (2.3696.120.41.1.1)
Archived-At: <https://mailarchive.ietf.org/arch/msg/radext/JBv-65pBYuNJE1S3RGFcB-nP_-0>
Subject: Re: [radext] Server identity and RFC7585bis (was: Review of draft-ietf-radext-radiusdtls)
X-BeenThere: radext@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: RADIUS EXTensions working group discussion list <radext.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/radext>, <mailto:radext-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/radext/>
List-Post: <mailto:radext@ietf.org>
List-Help: <mailto:radext-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/radext>, <mailto:radext-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 11 Apr 2024 13:15:38 -0000

On Apr 10, 2024, at 3:56 PM, Michael Richardson <mcr+ietf@sandelman.ca> wrote:
> You need to give the certificate SAN dNSName for the server, or you can't
> verify the certificate correctly.
> 
> I think that "same IP addr and port" is a bad test for same server, as one
> way to do multi-tenant would be to inspect the SNI and punt to different
> backend servers.

  I tend to agree here.  The server identity is the certificate (or DNSName in the cert).  The IP/port are pretty much irrelevant.

  I've added some comments to this effect in https://github.com/radext-wg/draft-ietf-radext-radiusdtls-bis/pull/1

  Alan DeKok.

v2.23.0 | Report a Bug | By Email