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

Brute forcing web applications' passwords

Here, we will use the same two apps that we have been using, so let's go directly to the steps, as follows:

  1. Go to Burp Suite and make sure that Intercept is OFF.
  2. Go to DVWA and select Brute force from the left menu.
  3. Type admin as Username and 12345 as Password (do not click on Login yet).
  4. Go back to Burp Suite and set Intercept to ON.
  5. Now, you should be able to see all data sent, including the Username and Password values typed.
  6. Click on the button that says Action on the top menu and then select Sent to Intruder, as shown in the following screenshot:

    Figure 12.25 – Action menu on Burp Suite

  7. Now, you should see that the Intruder menu is now highlighted in red, so go and click on Intruder in the top menu, as shown in the following screenshot:

    Figure 12.26 – Intruder menu

  8. Go to Positions on the top menu. There, you can see the parameters or variables that we are going to use in our payloads...