Internet-Draft MUD-Quarantine November 2020
Richardson & Ranganathan Expires 6 May 2021 [Page]
Workgroup:
opsawg Working Group (if adopted)
Internet-Draft:
draft-richardson-shg-mud-quarantined-access-02
Published:
Intended Status:
Standards Track
Expires:
Authors:
M. Richardson
Sandelman Software Works
M. Ranganathan
NIST

Manufacturer Usage Description for quarantined access to firmware

Abstract

The Manufacturer Usage Description is a tool to describe the limited access that a single function device such as an Internet of Things device might need.

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 https://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 6 May 2021.

Table of Contents

1. Introduction

The document details an extension to the Manufacturer Usage Description (MUD) mechanism to be able to mark one or more ACLs as being enabled even though the device has been quaranteed.

2. Requirements Language

In this document, the key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" are to be interpreted as described in BCP 14, RFC 2119 [RFC2119] and indicate requirement levels for compliant STuPiD implementations.

3. MUD file extensions

3.1. Tree Diagram

module: cira-shg-mud augment /m:mud: +-rw quaranteed-device-policy +-rw enabled-ace-names* [ace-name] +-rw ace-name -> /acl:acls/acl/aces/ace/name

3.2. YANG FILE

<CODE BEGINS> file "ietf-mud-quarantine@2019-12-27.yang"

module ietf-mud-quarantine {
  yang-version 1.1;

  namespace
    "urn:ietf:params:xml:ns:yang:ietf-mud-quarantine";
  prefix "q";

  import ietf-mud {
    prefix m;
    description "This module defines an extension to MUD to mark entries as being needed during quarantine";
    reference "RFC YYYY: MUD YANG";
  }

  organization "IETF OPSAWG Working group.";

  contact
    "WG Web: <https://datatracker.ietf.org/wg/opsawg/>
     WG List: opsawg@ietf.org
    Author:   Michael Richardson
              <mailto:mcr+ietf@sandelman.ca>

    Author:   M. Ranganathan
              <mailto:mranga@gmail.com>";

  description
   "This module extends the RFC8520 MUD format to two
    facilities: definition of an Access Control List appropriate
    to enable device upgrade only, and provide for a history of
    modifications by third-parties to the MUD file";

  revision "2019-12-27" {
    description
     "Initial version";
    reference
     "RFC XXXX: MUD profile with quarantined access";
  }

  augment "/m:mud" {
    description
       "Adds leaf nodes for marking ACLs that should be enabled during quarantine";

    container quaranteed-device-policy {
      description
        "The policies that should be enforced on traffic
         coming from the device when it is under quarantine.
         These policies are usually a subset of operational policies
         and are intended to permit firmware updates only.
         They are intended to keep the device safe (and the network safe
         from the device) when the device is suspected of being
         out-of-date, but still considered sufficiently intact to be
         able to do a firmware update";
      list enabled-ace-names {
        key ace-name;
        leaf ace-name {
          type leafref {
            path "/acl:acls/acl:acl/acl:aces/acl:ace/acl:name";
          }
        }
      }
    }
  }
}


<CODE ENDS>

4. Security Considerations

TBD

5. Privacy Considerations

TBD

6. IANA Considerations

The following YANG modules need to be registered in the "YANG Module Names" registry:

      Name: ietf-mud
      URN: urn:ietf:params:xml:ns:yang:ietf-mud
      Prefix: ietf-mud
      Registrant contact: The IESG
      Reference: [THIS DOCUMENT]

7. Acknowledgements

8. Normative References

[RFC2119]
Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, , <https://www.rfc-editor.org/info/rfc2119>.
[RFC8520]
Lear, E., Droms, R., and D. Romascanu, "Manufacturer Usage Description Specification", RFC 8520, DOI 10.17487/RFC8520, , <https://www.rfc-editor.org/info/rfc8520>.

Authors' Addresses

Michael Richardson
Sandelman Software Works
M. Ranganathan
NIST