[secdir] sec-dir review of draft-ietf-sieve-autoreply-02
Derek Atkins <derek@ihtfp.com> Wed, 01 December 2010 20:55 UTC
Return-Path: <derek@ihtfp.com>
X-Original-To: secdir@core3.amsl.com
Delivered-To: secdir@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 132673A6407; Wed, 1 Dec 2010 12:55:28 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -101.988
X-Spam-Level:
X-Spam-Status: No, score=-101.988 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_MISMATCH_ORG=0.611, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KTxYtj7tjuUs; Wed, 1 Dec 2010 12:55:27 -0800 (PST)
Received: from mail2.ihtfp.org (MAIL2.IHTFP.ORG [204.107.200.7]) by core3.amsl.com (Postfix) with ESMTP id 223163A6359; Wed, 1 Dec 2010 12:55:26 -0800 (PST)
Received: from localhost (localhost [127.0.0.1]) by mail2.ihtfp.org (Postfix) with ESMTP id 95F4B2602AB; Wed, 1 Dec 2010 15:56:37 -0500 (EST)
Received: from mail2.ihtfp.org ([127.0.0.1]) by localhost (mail2.ihtfp.org [127.0.0.1]) (amavisd-maia, port 10024) with ESMTP id 06031-05; Wed, 1 Dec 2010 15:56:34 -0500 (EST)
Received: from pgpdev.ihtfp.org (IHTFP-DHCP-100.IHTFP.ORG [192.168.248.100]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "cliodev.ihtfp.com", Issuer "IHTFP Consulting Certification Authority" (not verified)) by mail2.ihtfp.org (Postfix) with ESMTPS id 31513260245; Wed, 1 Dec 2010 15:56:34 -0500 (EST)
Received: (from warlord@localhost) by pgpdev.ihtfp.org (8.14.4/8.14.3/Submit) id oB1KuQlL011523; Wed, 1 Dec 2010 15:56:26 -0500
From: Derek Atkins <derek@ihtfp.com>
To: iesg@ietf.org, secdir@ietf.org
Date: Wed, 01 Dec 2010 15:56:25 -0500
Message-ID: <sjmhbex9pqe.fsf@pgpdev.ihtfp.org>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
X-Virus-Scanned: Maia Mailguard 1.0.2a
Cc: robinsgv@gmail.com, barryleiba@computer.org, sieve-chairs@tools.ietf.org, Alexey.Melnikov@isode.com
Subject: [secdir] sec-dir review of draft-ietf-sieve-autoreply-02
X-BeenThere: secdir@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Security Area Directorate <secdir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/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: Wed, 01 Dec 2010 20:55:28 -0000
Hi, 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 document describes how the Sieve email filtering language, along with some extensions, can be used to create automatic replies to incoming electronic mail messages based on the address book and presence information of the recipient. The security considerations section details many potential issues with automated responders. One attack that it does not mention is the potential for using the auto-responder as an oracle, in particular if the system is using any public key cryptographic methods. An attacker could, theoretically, use the auto-responder to perform timing attacks. -derek -- Derek Atkins 617-623-3745 derek@ihtfp.com www.ihtfp.com Computer and Internet Security Consultant
- [secdir] sec-dir review of draft-ietf-sieve-autor… Derek Atkins
- Re: [secdir] sec-dir review of draft-ietf-sieve-a… Barry Leiba
- Re: [secdir] sec-dir review of draft-ietf-sieve-a… Derek Atkins
- Re: [secdir] sec-dir review of draft-ietf-sieve-a… Barry Leiba