Book Image

Securing Network Infrastructure

By : Sairam Jetty, Sagar Rahalkar
Book Image

Securing Network Infrastructure

By: Sairam Jetty, Sagar Rahalkar

Overview of this book

Digitization drives technology today, which is why it’s so important for organizations to design security mechanisms for their network infrastructures. Analyzing vulnerabilities is one of the best ways to secure your network infrastructure. This Learning Path begins by introducing you to the various concepts of network security assessment, workflows, and architectures. You will learn to employ open source tools to perform both active and passive network scanning and use these results to analyze and design a threat model for network security. With a firm understanding of the basics, you will then explore how to use Nessus and Nmap to scan your network for vulnerabilities and open ports and gain back door entry into a network. As you progress through the chapters, you will gain insights into how to carry out various key scanning tasks, including firewall detection, OS detection, and access management to detect vulnerabilities in your network. By the end of this Learning Path, you will be familiar with the tools you need for network scanning and techniques for vulnerability scanning and network protection. This Learning Path includes content from the following Packt books: •Network Scanning Cookbook by Sairam Jetty •Network Vulnerability Assessment by Sagar Rahalkar
Table of Contents (28 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Using Nessus to scan SCADA/ICS systems


Nessus has a family of plugins – about 308 pages of them – that can be used to perform scans on SCADA/ICS devices. You can browse the family of plugins here: https://www.tenable.com/plugins/nessus/families/SCADA . These plugins are checked against the given device to identify any vulnerability that has been identified based on the signatures present in the plugin.

Getting ready

In order to complete this activity, you will have to satisfy the following prerequisites on your machine:

  1. You must have Nessus installed.
  2. You must have network access to the hosts on which the scans are to be performed.

In order to install Nessus, you can follow the instructions provided in Chapter 2, Understanding Network Scanning Tools. This will allow you to download a compatible version of Nessus and install all the required plugins. In order to check whether your machine has Nessus installed, open the search bar and search for Nessus Web Client. Once found and clicked, this will...