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

WLAN encryptions and their corresponding flaws and attacks

Even with the best research and implementation of highly protected algorithms, once algorithms are made public, there is always a way to penetrate them. This is especially true for wireless algorithms, as these algorithms were made with good intentions and to provide users around the globe with a secure channel to access data over the internet, but with time, the WLAN encryption algorithms started getting penetrated. The first algorithm that was broken was Wired Equivalent Privacy (WEP), which used a single key (static) to encrypt packets and then send them over the channel; hence, an attacker, after dumping a good amount of data packets, can decipher the key within a few minutes. Something better was required, and so WPA/WPA2 was introduced.

Important Note

WEP is outdated technology and is no longer used in organizations. Hence, we will focus on currently running wireless encryptions.

Wi-Fi Protected Access (WPA...