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

Gathering requirements


Before we can even think of starting the vulnerability assessment, it is extremely important to very clearly understand customer requirements. The customer may be internal or external to the organization. For a VA tester, it is important to know what the customer is expecting from the test. In order to identify and document the customer requirements, the following things need to be done.

Preparing a detailed checklist of test requirements

The tester needs to set up multiple meetings with the customer to understand their requirements. The outcome should include but not be limited to the following:

  • Security compliance that the customer wants to comply with
  • Requirements and code of conduct (if any) stated in respective security compliance 
  • List of network segments in scope
  • List of network security devices in scoped network segments
  • List of assets to scan (along with IP ranges)
  • List of assets exposed to a public network (along with IP ranges)
  • List of assets that have network-wide...