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

Why ICS environments are easy targets for attackers

Let's quickly discuss why ICS make such an easy target. This is relevant because it portrays some of the methodologies and angles used in pentesting these environments. To summarize, ICSes are considered easy targets for the following reasons:

  • By design, an ICS is meant to be open in nature, easily accessible to the people working with them, and leave little in the way of barriers for systems to interconnect. This open nature often introduces common weaknesses in the system such as the following:

    - Default or easily guessable passwords (if there are passwords defined at all)

    - Default system configurations that allow us to easily connect to/share/access resources

    - User and process privileges that allow too much system access

    - Lacking or missing security controls

    Additionally, because security was not a design consideration for ICS or its components, security controls such as encryption, authentication, authorization, and...