Active-Scanning profiles for IoT devices
draft-yang-opsawg-iot-devices-active-scanning-00

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OPSWG                                                            J. Yang
Internet-Draft                                                    L. Xia
Intended status: Standards Track                                  Huawei
Expires: September 7, 2020                                March 06, 2020

                Active-Scanning profiles for IoT devices
            draft-yang-opsawg-iot-devices-active-scanning-00

Abstract

   This draft extends MUD [RFC8520] model for the active scanning during
   the end host device on-boarding.  The according features include TCP/
   UDP port scanning, weak password detection, mandatory and hazardous
   services detection, etc, which can help administrator to discover
   system security vulnerabilities in advance.

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 September 7, 2020.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Overview of Active Scanning IoT devices . . . . . . . . . . .   2
     2.1.  Port-Scanning . . . . . . . . . . . . . . . . . . . . . .   2
     2.2.  Service Discovery . . . . . . . . . . . . . . . . . . . .   3
     2.3.  Weak-password Cracking  . . . . . . . . . . . . . . . . .   4
     2.4.  Frequency and Result of active scanning . . . . . . . . .   4
   3.  The ietf-mud-active-scanning model extension  . . . . . . . .   5
     3.1.  The mud-active-scanning YANG model  . . . . . . . . . . .   5
   4.  MUD File Example  . . . . . . . . . . . . . . . . . . . . . .  10
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   8.  Informative References  . . . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   IoT devices use a large number of open-source software and
   application components, and the system iteration is fast.  Therefore,
   various security vulnerabilities may exist.  When an IoT device is on
   boarding, the network administrator can quickly learn about the
   security settings and technical support services of the device
   through active scanning, detect security vulnerabilities in a timely
   manner, objectively evaluate the network risk level, and rectify
   network security vulnerabilities and incorrect configurations to
   prevent hacker attacks.  If we look firewalls and network monitoring
   systems as passive means of defense, then security scanning can look
   as an active preventive measure, which can effectively prevent hacker
   attacks.

   This document extends MUD RFC8520 to model the functions and
   parameters of active scanning, including TCP/UDP port scanning, weak
   password detection, mandatory and hazardous services detection, etc.
   By using this scanning profile, the MUD-enabled active scanner can
   obtain a lot of useful information to discover system security
   vulnerabilities.

2.  Overview of Active Scanning IoT devices

2.1.  Port-Scanning

   A port is a potential communication channel, that is, an intrusion
   channel.  Port scanning on IoT devices can obtain a lot of useful
   information, which can be used to discover system security
   vulnerabilities.  The following scanning types are widely used:

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