Book Image

Mastering Defensive Security

By : Cesar Bravo
Book Image

Mastering Defensive Security

By: Cesar Bravo

Overview of this book

Every organization has its own data and digital assets that need to be protected against an ever-growing threat landscape that compromises the availability, integrity, and confidentiality of crucial data. Therefore, it is important to train professionals in the latest defensive security skills and tools to secure them. Mastering Defensive Security provides you with in-depth knowledge of the latest cybersecurity threats along with the best tools and techniques needed to keep your infrastructure secure. The book begins by establishing a strong foundation of cybersecurity concepts and advances to explore the latest security technologies such as Wireshark, Damn Vulnerable Web App (DVWA), Burp Suite, OpenVAS, and Nmap, hardware threats such as a weaponized Raspberry Pi, and hardening techniques for Unix, Windows, web applications, and cloud infrastructures. As you make progress through the chapters, you'll get to grips with several advanced techniques such as malware analysis, security automation, computer forensics, and vulnerability assessment, which will help you to leverage pentesting for security. By the end of this book, you'll have become familiar with creating your own defensive security tools using IoT devices and developed advanced defensive security skills.
Table of Contents (23 chapters)
Section 1: Mastering Defensive Security Concepts
Section 2: Applying Defensive Security
Section 3: Deep Dive into Defensive Security

Overviewing the most common attacks on web applications

Now is the time to talk about the most common attacks against web applications that you may face and, of course, all the methods, techniques, and tools that you can use to protect your systems against them.

Exploring XSS attacks

The logic behind this type of attack is very simple: to leverage some JavaScript or HTML to execute some code on your web application.

To better understand these types of attacks, let's look at one of the most common types of XSS attacks: the hijacking of user sessions.

Hijacking a user session

Here, the attacker will try to inject malicious code into a web application that can be used to exfiltrate the session cookie that will be used to impersonate the victim.

To better illustrate this attack, let's see an example based on a web application used to rent houses, as follows:

  1. The attacker will log in to the vulnerable site and create an entry to advertise the renting...