LISP Threats Analysis
draft-ietf-lisp-threats-02
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Network Working Group D. Saucez
Internet-Draft INRIA
Intended status: Informational L. Iannone
Expires: March 16, 2013 Telecom ParisTech
O. Bonaventure
Universite catholique de Louvain
September 12, 2012
LISP Threats Analysis
draft-ietf-lisp-threats-02.txt
Abstract
This document analyzes the threats against the security of the
Locator/Identifier Separation Protocol and proposes a set of
recommendations to mitigate some of the identified security risks.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 16, 2013.
Copyright Notice
Copyright (c) 2012 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
Saucez, et al. Expires March 16, 2013 [Page 1]
Internet-Draft LISP Threats September 2012
described in the Simplified BSD License.
Table of Contents
1. Requirements notation . . . . . . . . . . . . . . . . . . . . 3
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Definition of Terms . . . . . . . . . . . . . . . . . . . . . 3
4. On-path Attackers . . . . . . . . . . . . . . . . . . . . . . 4
5. Off-Path Attackers: Reference Environment . . . . . . . . . . 4
6. Data-Plane Threats . . . . . . . . . . . . . . . . . . . . . . 6
6.1. EID-to-RLOC Database Threats . . . . . . . . . . . . . . . 6
6.2. EID-to-RLOC Cache Threats . . . . . . . . . . . . . . . . 7
6.2.1. EID-to-RLOC Cache poisoning . . . . . . . . . . . . . 7
6.2.2. EID-to-RLOC Cache overflow . . . . . . . . . . . . . . 9
6.3. Attacks not leveraging on the LISP header . . . . . . . . 9
6.4. Attacks leveraging on the LISP header . . . . . . . . . . 10
6.4.1. Attacks using the Locator Status Bits . . . . . . . . 10
6.4.2. Attacks using the Map-Version bit . . . . . . . . . . 11
6.4.3. Attacks using the Nonce-Present and the Echo-Nonce
bits . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.4.4. Attacks using the ID Instance bits . . . . . . . . . . 13
7. Control Plane Threats . . . . . . . . . . . . . . . . . . . . 13
7.1. Attacks with Map-Request messages . . . . . . . . . . . . 13
7.2. Attacks with Map-Reply messages . . . . . . . . . . . . . 15
7.3. Gleaning Attacks . . . . . . . . . . . . . . . . . . . . . 16
8. Threats concerning Interworking . . . . . . . . . . . . . . . 17
9. Threats with Malicious xTRs . . . . . . . . . . . . . . . . . 18
10. Security of the Proposed Mapping Systems . . . . . . . . . . . 20
10.1. LISP+ALT . . . . . . . . . . . . . . . . . . . . . . . . . 21
10.2. LISP-DDT . . . . . . . . . . . . . . . . . . . . . . . . . 22
11. Threats concerning LISP-MS . . . . . . . . . . . . . . . . . . 22
11.1. Map Server . . . . . . . . . . . . . . . . . . . . . . . . 23
11.2. Map-Resolver . . . . . . . . . . . . . . . . . . . . . . . 24
12. Suggested Recommendations . . . . . . . . . . . . . . . . . . 25
13. Document Status and Plans . . . . . . . . . . . . . . . . . . 27
14. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 27
15. Security Considerations . . . . . . . . . . . . . . . . . . . 28
16. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 28
17. References . . . . . . . . . . . . . . . . . . . . . . . . . . 28
17.1. Normative References . . . . . . . . . . . . . . . . . . . 28
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