Adaptive DNS Discovery Threats Here
draft-deen-add-threats-00

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Last updated 2020-07-13
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Adaptive DNS Discovery (ADD)                                     G. Deen
Internet-Draft                                      Comcast-NBCUniversal
Intended status: Informational                             July 13, 2020
Expires: January 14, 2021

                  Adaptive DNS Discovery Threats Here
                       draft-deen-add-threats-00

Abstract

   DNS resolver discovery is designed to operate under a variety
   different levels of trust in the underlying network.  This document
   describes the various trust types that DNS resolver discovery and
   selection may take place under.  Internet Draft.

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
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   This Internet-Draft will expire on January 14, 2021.

Copyright Notice

   Copyright (c) 2020 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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   2
   2.  Classifications . . . . . . . . . . . . . . . . . . . . . . .   2
     2.1.  Approach  . . . . . . . . . . . . . . . . . . . . . . . .   2
     2.2.  Green or Trusted Networks . . . . . . . . . . . . . . . .   2
     2.3.  Yellow or Unknown Networks  . . . . . . . . . . . . . . .   3
     2.4.  Red or Hostile Networks . . . . . . . . . . . . . . . . .   3
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  Normative References  . . . . . . . . . . . . . . . . . .   4
     5.2.  Informative References  . . . . . . . . . . . . . . . . .   4
   Appendix A.  Additional Stuff . . . . . . . . . . . . . . . . . .   4
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   5

1.  Introduction

   There are a variety of network environments users may interact with
   where they will be discovering and selecting a DNS resolver each of
   which presents a different threat level to the user.  This document
   attempts to establish a common set of threats classifications for
   reference by Adaptive DNS Discovery (ADD) working group drafts.

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

2.  Classifications

2.1.  Approach

   There are many ways to classify and structure threat analysis the
   approach used here is centered on the perspective of the user and how
   much subjective trust they can place in different access network
   situations that they may encounter.

2.2.  Green or Trusted Networks

   These are networks in which the user has an high sense of trust.
   These are networks run by a trusted party who is known to the user
   and is trusted by the user to operate the network with security and
   operational integrity.  While even the best run network can be
   compromised by attackers or malware, the user has subjective trust
   that the Green network is very unlikely to be compromised.

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   The user often has a relationship with the network operator - either
   personally, as an employee, or by contract they user has entered into
   such as with an ISP or Mobile Carrier.

   Examples of Green Networks

   o  User's own home network

   o  User's organization, company, or enterprise network
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