Evolution of Endpoint Security - An Operational Perspective
draft-mcfadden-opsec-endp-evolve-00

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Individual Submission                                       M. McFadden
Internet Draft                         internet policy advisors, ltd uk
Intended status: Informational                        February 14, 2021
Expires: August 14, 2021

        Evolution of Endpoint Security - An Operational Perspective
                  draft-mcfadden-opsec-endp-evolve-00.txt

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Internet-Draft      Evolution of Endpoint Security        February 2021

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Abstract

   This draft discusses the traditional model of security where
   endpoints in the network are protected by a variety of tools. It
   proposes a model for endpoints and then argues that the older,
   traditional approach is no longer sufficient for operational
   security at the endpoint. A series of operational examples are
   discussed in an Appendix.

Table of Contents

   1. Introduction...................................................3
   2. Endpoints, Definition, Model and Scope.........................3
      2.1. Scope.....................................................3
      2.2. Models....................................................4
      2.3. Internal representation of an endpoint....................4
      2.4. External representation of an endpoint....................5
   3. Limitations of the Threat Landscape............................6
      3.1. Typical Categories of Threats.............................7
      3.2. Evolution of threat types and their descriptions..........7
   4. Endpoint Security Capabilities.................................8
      4.1. Intrinsic versus added security...........................9
      4.2. Specific Endpoint Security Capabilities..................10
   5. Optimal Properties of an Endpoint Security Solution...........11
   6. Case Studies in the Limitations of Endpoint Security Only.....12
      6.1. Unable to put an endpoint security add-on on the UE......13
      6.2. Endpoints may not see the malware on the endpoint........16
      6.3. Endpoints may miss information leakage attacks...........18
      6.4. Suboptimality and gray areas.............................20
   7. Defense-in-depth from the perspective of protocol design......23
   8. Endpoint security from the perspective of protocol design.....24
      8.1. Simplicity of design is important........................25
      8.2. Diversity in protocol design.............................25
      8.3. Protocol design and failure of intermediaries............26
      8.4. Protocol evolution.......................................26
   9. Security Considerations.......................................26
   10. IANA Considerations..........................................27
   11. Acknowledgements.............................................27
   12. References...................................................27
      12.1. Informative References..................................27
   Appendix A. Operational Experience and Endpoint Security.........31
      A.1. Endpoint only incidents..................................32

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