IETF Logo Mail Archive

Re: [TLS] Malware (was Re: draft-green-tls-static-dh-in-tls13-01)

"Dobbins, Roland" <rdobbins@arbor.net> Mon, 17 July 2017 13:35 UTC

Return-Path: <rdobbins@arbor.net>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A662C131BA1 for <tls@ietfa.amsl.com>; Mon, 17 Jul 2017 06:35:34 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.92
X-Spam-Level:
X-Spam-Status: No, score=-1.92 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, 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=thescout.onmicrosoft.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 OKChDvTD85sH for <tls@ietfa.amsl.com>; Mon, 17 Jul 2017 06:35:33 -0700 (PDT)
Received: from NAM01-BN3-obe.outbound.protection.outlook.com (mail-bn3nam01on0098.outbound.protection.outlook.com [104.47.33.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C0C0E131BB4 for <tls@ietf.org>; Mon, 17 Jul 2017 06:35:25 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=thescout.onmicrosoft.com; s=selector1-arbor-net; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=KSFI2FSYvtqfIFHg/MMGoA+1bHnRkLRahQUFRsbvfWc=; b=D2k7gKkv2W0/P7WvWsBbp5TmQeBhHonUnEhfoETnFvy2G5AQEOqer+V9VLHwRFLA9BIGQeZ+uSkqG8s8fjV7DVJf5qyMXepkzOTvjXNFm0rjsdAU9B7JiKWS0cTTWgFi9GyEKPhUlxEsXLcf5qnuTWbURBXqms8SycW4JdYK26A=
Received: from DM2PR0101MB1039.prod.exchangelabs.com (10.160.129.156) by DM2PR0101MB1037.prod.exchangelabs.com (10.160.129.154) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1261.13; Mon, 17 Jul 2017 13:35:24 +0000
Received: from DM2PR0101MB1039.prod.exchangelabs.com ([fe80::810f:2255:5d85:2fc7]) by DM2PR0101MB1039.prod.exchangelabs.com ([fe80::810f:2255:5d85:2fc7%17]) with mapi id 15.01.1261.022; Mon, 17 Jul 2017 13:35:24 +0000
From: "Dobbins, Roland" <rdobbins@arbor.net>
To: Carl Mehner <c@cem.me>
CC: Russ Housley <housley@vigilsec.com>, IETF TLS <tls@ietf.org>
Thread-Topic: [TLS] Malware (was Re: draft-green-tls-static-dh-in-tls13-01)
Thread-Index: AQHS/vRnKFRxxE429kKncr36no97/qJX7moAgAANgG2AAAOcAIAABadK
Date: Mon, 17 Jul 2017 13:35:23 +0000
Message-ID: <CC3CE5F8-C8C2-4A70-829D-483E26D20733@arbor.net>
References: <CABkgnnU8ho7OZpeF=BfEZWYkt1=3ULjny8hcwvp3nnaCBtbbhQ@mail.gmail.com> <2A9492F7-B5C5-49E5-A663-8255C968978D@arbor.net> <CABkgnnX7w0+iH=uV7LRKnsVokVWpCrF1ZpTNhSXsnZaStJw2cQ@mail.gmail.com> <FDDB46BC-876C-49FC-9DAE-05C61BB5EFC9@vigilsec.com> <9C81BE7B-7C21-4504-B60D-96BA95C3D2FD@arbor.net>, <CAEa9xj55jzch-v0mysbRSryNM0Y7Bdtevmrc3+FVxMO8EP5zWA@mail.gmail.com>
In-Reply-To: <CAEa9xj55jzch-v0mysbRSryNM0Y7Bdtevmrc3+FVxMO8EP5zWA@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: cem.me; dkim=none (message not signed) header.d=none;cem.me; dmarc=none action=none header.from=arbor.net;
x-originating-ip: [88.208.89.131]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1; DM2PR0101MB1037; 7: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
x-ms-office365-filtering-correlation-id: 2732e163-be11-4558-895e-08d4cd18ad98
x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(300000500095)(300135000095)(300000501095)(300135300095)(22001)(300000502095)(300135100095)(2017030254075)(300000503095)(300135400095)(2017052603031)(201703131423075)(201703031133081)(201702281549075)(300000504095)(300135200095)(300000505095)(300135600095)(300000506095)(300135500095); SRVR:DM2PR0101MB1037;
x-ms-traffictypediagnostic: DM2PR0101MB1037:
x-exchange-antispam-report-test: UriScan:(236129657087228)(50300203121483)(17755550239193);
x-microsoft-antispam-prvs: <DM2PR0101MB10374D1B87DD925CFA6EE4B3CAA00@DM2PR0101MB1037.prod.exchangelabs.com>
x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(2401047)(8121501046)(2017060910075)(5005006)(3002001)(10201501046)(100000703101)(100105400095)(93006095)(93001095)(6041248)(20161123560025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123555025)(20161123562025)(20161123564025)(20161123558100)(6072148)(100000704101)(100105200095)(100000705101)(100105500095); SRVR:DM2PR0101MB1037; BCL:0; PCL:0; RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095); SRVR:DM2PR0101MB1037;
x-forefront-prvs: 0371762FE7
x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(39850400002)(39840400002)(39450400003)(39410400002)(39400400002)(24454002)(5250100002)(81166006)(7736002)(8676002)(53546010)(2950100002)(6916009)(14454004)(4326008)(189998001)(82746002)(2900100001)(83716003)(33656002)(6486002)(6506006)(38730400002)(478600001)(6436002)(110136004)(3846002)(6116002)(229853002)(25786009)(102836003)(8936002)(2906002)(86362001)(50986999)(5660300001)(230783001)(6246003)(53936002)(54356999)(66066001)(76176999)(54896002)(3280700002)(93886004)(54906002)(36756003)(99286003)(3660700001)(236005)(6512007); DIR:OUT; SFP:1102; SCL:1; SRVR:DM2PR0101MB1037; H:DM2PR0101MB1039.prod.exchangelabs.com; FPR:; SPF:None; MLV:sfv; LANG:en;
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: multipart/alternative; boundary="_000_CC3CE5F8C8C24A70829D483E26D20733arbornet_"
MIME-Version: 1.0
X-OriginatorOrg: arbor.net
X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Jul 2017 13:35:23.9884 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 54f11205-d4aa-4809-bd36-0b542199c5b2
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM2PR0101MB1037
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/NE14LqhicTlInVn5IZkmKiG7PUI>
Subject: Re: [TLS] Malware (was Re: draft-green-tls-static-dh-in-tls13-01)
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 17 Jul 2017 13:35:35 -0000


On Jul 17, 2017, at 15:15, Carl Mehner <c@cem.me<mailto:c@cem.me>> wrote:

beginning to encrypt traffic inside the TLS tunnel.

Yes, some (but by no means all) are - which means that in such cases, the ability to look inside the TLS tunnel so as to be able to detect the presence of an additional level of encryption as a possible indicator of compromise is extremely important.

-----------------------------------
Roland Dobbins <rdobbins@arbor.net<mailto:rdobbins@arbor.net>>

v2.23.0 | Report a Bug | By Email