Book Image

Network Protocols for Security Professionals

By : Yoram Orzach, Deepanshu Khanna
5 (1)
Book Image

Network Protocols for Security Professionals

5 (1)
By: Yoram Orzach, Deepanshu Khanna

Overview of this book

With the increased demand for computer systems and the ever-evolving internet, network security now plays an even bigger role in securing IT infrastructures against attacks. Equipped with the knowledge of how to find vulnerabilities and infiltrate organizations through their networks, you’ll be able to think like a hacker and safeguard your organization’s network and networking devices. Network Protocols for Security Professionals will show you how. This comprehensive guide gradually increases in complexity, taking you from the basics to advanced concepts. Starting with the structure of data network protocols, devices, and breaches, you’ll become familiar with attacking tools and scripts that take advantage of these breaches. Once you’ve covered the basics, you’ll learn about attacks that target networks and network devices. Your learning journey will get more exciting as you perform eavesdropping, learn data analysis, and use behavior analysis for network forensics. As you progress, you’ll develop a thorough understanding of network protocols and how to use methods and tools you learned in the previous parts to attack and protect these protocols. By the end of this network security book, you’ll be well versed in network protocol security and security countermeasures to protect network protocols.
Table of Contents (23 chapters)
Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools
Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks
Part 3: Network Protocols – How to Attack and How to Protect

Black box and fuzzing

In this book, we will focus on how to protect our network and network devices. In this regard, we will see how to use fuzz testing or fuzzing, a testing technique that inputs data into the device under attack, expecting one of the following results:

  • Breaking into the system under attack
  • Getting secure information from the device under attack
  • Crashing the system under attack

Although the classical use of fuzzing tools is for software testing, in this chapter we will see a special aspect of it, in which we use it for breaking into, crashing, and manipulating communication devices.

Another important issue is that, unlike servers, communication equipment connects networks and Virtual Local Area Networks (VLANs) and therefore usually has several interfaces that are connected to several VLANs and/or to several networks. Risks can come from each one of them, so the test should be performed from different locations on different physical ports...