opsawg Working Group (if adopted) M. Richardson Internet-Draft Sandelman Software Works Intended status: Standards Track M. Ranganathan Expires: May 6, 2021 NIST November 02, 2020 Manufacturer Usage Description for quarantined access to firmware draft-richardson-shg-mud-quarantined-access-02 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 May 6, 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 Provisions Relating to IETF Documents (https://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. Richardson & Ranganathan Expires May 6, 2021 [Page 1] Internet-Draft MUD-Quarantine November 2020 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Requirements Language . . . . . . . . . . . . . . . . . . . . 2 3. MUD file extensions . . . . . . . . . . . . . . . . . . . . . 2 3.1. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . 2 3.2. YANG FILE . . . . . . . . . . . . . . . . . . . . . . . . 2 4. Security Considerations . . . . . . . . . . . . . . . . . . . 4 5. Privacy Considerations . . . . . . . . . . . . . . . . . . . 4 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4 7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 4 8. Normative References . . . . . . . . . . . . . . . . . . . . 4 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 4 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 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; Richardson & Ranganathan Expires May 6, 2021 [Page 2] Internet-Draft MUD-Quarantine November 2020 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: WG List: opsawg@ietf.org Author: Michael Richardson Author: M. Ranganathan "; 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"; } Richardson & Ranganathan Expires May 6, 2021 [Page 3] Internet-Draft MUD-Quarantine November 2020 } } } } } 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, March 1997, . [RFC8520] Lear, E., Droms, R., and D. Romascanu, "Manufacturer Usage Description Specification", RFC 8520, DOI 10.17487/RFC8520, March 2019, . Authors' Addresses Michael Richardson Sandelman Software Works Email: mcr+ietf@sandelman.ca Richardson & Ranganathan Expires May 6, 2021 [Page 4] Internet-Draft MUD-Quarantine November 2020 M. Ranganathan NIST Email: mranga@gmail.com Richardson & Ranganathan Expires May 6, 2021 [Page 5]