Security Threats to Simplified Multicast Forwarding (SMF)
RFC 7985
Document | Type |
RFC - Informational
(November 2016; No errata)
Updates RFC 7186
|
|
---|---|---|---|
Authors | Jiazi Yi , Thomas Clausen , Ulrich Herberg | ||
Last updated | 2018-12-20 | ||
Replaces | draft-yi-manet-smf-sec-threats | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Christopher Dearlove | ||
Shepherd write-up | Show (last changed 2016-04-14) | ||
IESG | IESG state | RFC 7985 (Informational) | |
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Alvaro Retana | ||
Send notices to | "Justin Dean" <bebemaster@gmail.com>, aretana@cisco.com | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | No IANA Actions |
Internet Engineering Task Force (IETF) J. Yi Request for Comments: 7985 T. Clausen Updates: 7186 Ecole Polytechnique Category: Informational U. Herberg ISSN: 2070-1721 November 2016 Security Threats to Simplified Multicast Forwarding (SMF) Abstract This document analyzes security threats to Simplified Multicast Forwarding (SMF), including vulnerabilities of duplicate packet detection and relay set selection mechanisms. This document is not intended to propose solutions to the threats described. In addition, this document updates RFC 7186 regarding threats to the relay set selection mechanisms using the Mobile Ad Hoc Network (MANET) Neighborhood Discovery Protocol (NHDP) (RFC 6130). Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This document is a product of the Internet Engineering Task Force (IETF). It has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 7841. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7985. Yi, et al. Informational [Page 1] RFC 7985 Security Threats for SMF November 2016 Copyright Notice Copyright (c) 2016 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. SMF Threat Overview . . . . . . . . . . . . . . . . . . . . . 4 4. Threats to Duplicate Packet Detection . . . . . . . . . . . . 5 4.1. Attack on the Hop Limit Field . . . . . . . . . . . . . . 6 4.2. Threats to Identification-Based Duplicate Packet Detection . . . . . . . . . . . . . . . . . . . . . . . . 7 4.2.1. Pre-Activation Attacks (Pre-Play) . . . . . . . . . . 7 4.2.2. De-activation Attacks (Sequence Number Wrangling) . . 8 4.3. Threats to Hash-Based Duplicate Packet Detection . . . . 9 4.3.1. Attack on the Hash-Assistant Value . . . . . . . . . 9 5. Threats to Relay Set Selection . . . . . . . . . . . . . . . 10 5.1. Common Threats to Relay Set Selection . . . . . . . . . . 10 5.2. Threats to the E-CDS Algorithm . . . . . . . . . . . . . 10 5.2.1. Link Spoofing . . . . . . . . . . . . . . . . . . . . 11 5.2.2. Identity Spoofing . . . . . . . . . . . . . . . . . . 11 5.3. Threats to S-MPR Algorithm . . . . . . . . . . . . . . . 11 5.4. Threats to the MPR-CDS Algorithm . . . . . . . . . . . . 12 6. Security Considerations . . . . . . . . . . . . . . . . . . . 12 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 13 7.1. Normative References . . . . . . . . . . . . . . . . . . 13 7.2. Informative References . . . . . . . . . . . . . . . . . 13 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 15 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 15 Yi, et al. Informational [Page 2] RFC 7985 Security Threats for SMF November 2016 1. Introduction This document analyzes security threats to Simplified Multicast Forwarding (SMF) [RFC6621]. SMF aims at providing basic Internet Protocol (IP) multicast forwarding in a way that is suitable for wireless mesh and Mobile Ad Hoc Networks (MANET). SMF consists of two major functional components: duplicate packet detection (DPD) and relay set selection (RSS). SMF is typically used in decentralized wireless environments and is potentially exposed to various attacks and misconfigurations. In a wireless environment, some of these attacks and misconfigurations represent threats of particular significance as compared to what they would do in wired networks. [RFC6621] briefly discusses several ofShow full document text