IETF B. Jordan Internet-Draft Symantec Corporation Intended status: Informational A. Thomson Expires: December 14, 2019 LookingGlass Cyber J. Verma Cisco Systems June 12, 2019 Collaborative Automated Course of Action Operations (CACAO) for Cyber Security draft-jordan-cacao-charter-05 Abstract This is the charter for the Working Group: Collaborative Automated Course of Action Operations (CACAO) for Cyber Security 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 December 14, 2019. Copyright Notice Copyright (c) 2019 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 Jordan, et al. Expires December 14, 2019 [Page 1] Internet-Draft CACAO June 2019 the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Goals and Deliverables . . . . . . . . . . . . . . . . . . . 3 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction To defend against threat actors and their tactics, techniques, and procedures, organizations need to manually identify, create, and document prevention, mitigation, and remediation steps. These steps when grouped together into a course of action playbook are used to protect systems, networks, data, and users. The problem is, once these steps have been created there is no standardized and structured way to document them or easily share them across organizational boundaries and technology stacks. This working group will create a standard that implements the course of action playbook model for cybersecurity operations. Each collaborative course of action, such as recommended prevention, mitigation and remediation steps, will consist of a sequence of cyber defense actions that can be executed by the various systems that can act on those actions. These courses of actions should be referenceable by other cyber threat intelligence that provides support for related data such as threat actors, campaigns, intrusion sets, malware, attack patterns, and other adversarial techniques, tactics, and procedures. This solution will specifically enable: 1. the creation and documentation of course of action playbooks in a structured machine-readable format 2. organizations to digitally sign course of action playbooks 3. the securely sharing and distribution of course of action playbooks across organizational boundaries and technology stacks 4. the creation and documentation of processing instructions for course of action playbooks in a machine readable format . This solution will contain at a minimum a data model specifying the course of action playbooks; a defined set of functional capabilities Jordan, et al. Expires December 14, 2019 [Page 2] Internet-Draft CACAO June 2019 and associated interfaces; and an exchange protocol between products. Where possible the working group may reuse and/or reference existing data models, like OASIS OpenC2 and other IETF standards (e.g., I2NSF, YANG, NETCONF, etc) that define the atomic actions to be included in a process or sequence. 2. Goals and Deliverables This working group has the following major goals and deliverables o CACAO Use Cases and Requirements * Specify the use cases and requirements o CACAO Functional Architecture: Roles and Interfaces * Specify the system functions and roles that are needed to enable Collaborative Courses of Action o CACAO Protocol Specification * Specify and standardize the configuration for at least one protocol that can be used to distribute courses of action in both a direct delivery and publish-subscribe method o CACAO JSON Data Model * Create a JSON data model that can capture and enable collaborative courses of action o CACAO Interoperability Test Documents * Define and create a series of tests and documents to assist with interoperability of the various systems involved. The working group may decide to not publish the use cases and requirements; and test documents. That decision will be made during the lifetime of the working group. Authors' Addresses Bret Jordan Symantec Corporation 350 Ellis Street Mountain View CA 94043 USA Email: bret_jordan@symantec.com Jordan, et al. Expires December 14, 2019 [Page 3] Internet-Draft CACAO June 2019 Allan Thomson LookingGlass Cyber 10740 Parkridge Blvd, Suite 200 Reston VA 20191 USA Email: athomson@lookingglasscyber.com Jyoti Verma Cisco Systems 170 West Tasman Dr. San Jose CA 95134 USA Email: jyoverma@cisco.com Jordan, et al. Expires December 14, 2019 [Page 4]