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Network Protocols for Security Professionals

Network Protocols for Security Professionals

By : Yoram Orzach, Deepanshu Khanna
5 (1)
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Network Protocols for Security Professionals

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)
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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

Web vulnerabilities and exploitation

In the previous section, we learned how we can perform web vulnerability scanning; let’s now focus on how we exploit common vulnerabilities and compromise web servers, web applications, databases, user sessions, and so on.

SQL injection

SQL injection is a common and important web application vulnerability that allows an attacker to interact with a backend database through SQL queries. These SQL queries are used to retrieve user data in form of rows and columns.

So, let’s demonstrate how we can compromise a login page via SQL injection:

  1. Enter the 1'or'1'='1 query in the Name and Password fields of the login page, as shown in the following screenshot:

Figure 14.14 – SQL injection login query

Now, as shown in Figure 14.14, the SQL login query is entered in the username and password field.

  1. The following screenshot shows that the login page is exploited...
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Network Protocols for Security Professionals
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