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

What is threat modeling?


The term threat modeling, at first, may sound like something very complex and tedious to perform. However, once understood, it is indeed a simple task. We will try to simplify the concept of threat modeling with appropriate illustrations throughout this chapter.

Let's try to break down the two words, threat and model. The following are the dictionary meanings of both the words:

  • Threat: A person or thing likely to cause damage or danger
  • Model: A system or thing used as an example to follow or imitate

Now, combining both the words again, what do they mean collectively? Threat modeling is nothing but a formal way to identify potential security issues.

Let's take a very simple example to understand this.

The following diagram depicts a fort:

The fort is the place where the king resides and requires stringent security against his enemies. So, while the architects would design the structure of the fort, they would also need to consider various threats that may compromise the...