Book Image

Industrial Cybersecurity - Second Edition

By : Pascal Ackerman
Book Image

Industrial Cybersecurity - Second Edition

By: Pascal Ackerman

Overview of this book

With Industrial Control Systems (ICS) expanding into traditional IT space and even into the cloud, the attack surface of ICS environments has increased significantly, making it crucial to recognize your ICS vulnerabilities and implement advanced techniques for monitoring and defending against rapidly evolving cyber threats to critical infrastructure. This second edition covers the updated Industrial Demilitarized Zone (IDMZ) architecture and shows you how to implement, verify, and monitor a holistic security program for your ICS environment. You'll begin by learning how to design security-oriented architecture that allows you to implement the tools, techniques, and activities covered in this book effectively and easily. You'll get to grips with the monitoring, tracking, and trending (visualizing) and procedures of ICS cybersecurity risks as well as understand the overall security program and posture/hygiene of the ICS environment. The book then introduces you to threat hunting principles, tools, and techniques to help you identify malicious activity successfully. Finally, you'll work with incident response and incident recovery tools and techniques in an ICS environment. By the end of this book, you'll have gained a solid understanding of industrial cybersecurity monitoring, assessments, incident response activities, as well as threat hunting.
Table of Contents (26 chapters)
Section 1: ICS Cybersecurity Fundamentals
Section 2:Industrial Cybersecurity – Security Monitoring
Section 3:Industrial Cybersecurity – Threat Hunting
Section 4:Industrial Cybersecurity – Security Assessments and Intel
Chapter 15: Industrial Control System Risk Assessments
Section 5:Industrial Cybersecurity – Incident Response for the ICS Environment

Penetration testing

Before we start our conversation around penetration testing, to illustrate the differences and similarities as well as overlaps, let's briefly outline some related cybersecurity assessment types. Most of these assessment types have been discussed before but are reiterated here and put things into perspective.

The four main cybersecurity assessment types are as follows:

  • A gap analysis compares the current set of mitigation controls to a list of recommended security controls, provided by a standards body such as NIST. The method looks for deviations or gaps between the existing prevention mechanisms for a system and the recommended mechanisms. Activities such as a network architecture drawing review and system configuration review are used to identify the gaps.
  • A vulnerability assessment will unearth vulnerabilities or flaws in an ICS asset or in the system as a whole by comparing the current patch level of devices or application revisions against...