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)
1
Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools
7
Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks
12
Part 3: Network Protocols – How to Attack and How to Protect

Attacks on system resources

A communications device is a dedicated computer, and this computer has computer resources that can be attacked. In this section, we talk about potential attacks on these resources and how we can protect against them.

Memory-based attacks, memory leaks, and buffer overflows

Memory leaks are static or dynamic memory resource allocations of memory that do not serve any useful purpose. This can be due to a software bug, inefficient software, or attacks that consume memory resources.

Memory-based attacks and causes of memory leaks

Memory leaks can be any of the following:

  • An application that continually stores data in memory, without releasing the memory for other applications.
  • An inefficient application that locks a large amount of memory without a real need for it, prohibiting other applications from accessing this part of the memory.
  • An attack on device resources that consume a large number of memory resources. This can be anything...