Book Image

Kali Linux Web Penetration Testing Cookbook - Second Edition

By : Gilberto Najera-Gutierrez
Book Image

Kali Linux Web Penetration Testing Cookbook - Second Edition

By: Gilberto Najera-Gutierrez

Overview of this book

Web applications are a huge point of attack for malicious hackers and a critical area for security professionals and penetration testers to lock down and secure. Kali Linux is a Linux-based penetration testing platform that provides a broad array of testing tools, many of which can be used to execute web penetration testing. Kali Linux Web Penetration Testing Cookbook gives you the skills you need to cover every stage of a penetration test – from gathering information about the system and application, to identifying vulnerabilities through manual testing. You will also cover the use of vulnerability scanners and look at basic and advanced exploitation techniques that may lead to a full system compromise. You will start by setting up a testing laboratory, exploring the latest features of tools included in Kali Linux and performing a wide range of tasks with OWASP ZAP, Burp Suite and other web proxies and security testing tools. As you make your way through the book, you will learn how to use automated scanners to find security ?aws in web applications and understand how to bypass basic security controls. In the concluding chapters, you will look at what you have learned in the context of the Open Web Application Security Project (OWASP) and the top 10 web application vulnerabilities you are most likely to encounter, equipping you with the ability to combat them effectively. By the end of this book, you will have acquired the skills you need to identify, exploit, and prevent web application vulnerabilities.
Table of Contents (12 chapters)

Cracking password hashes with John the Ripper by using a dictionary

In previous chapters, we extracted password hashes from databases; using hash strings is the most common method to find passwords in a penetration test. In order to discover the real password, we need to decipher them and, as hashes are generated through irreversible algorithms, we have no way of decrypting the password directly. Hence, it is necessary to use slower methods like brute force and dictionary cracking.

In this recipe, we will use John the Ripper (JTR or simply John), the most popular password cracker, to recover passwords from the hashes extracted in the step-by-step SQL injection recipe in Chapter 6, Exploiting Injection Vulnerabilities.

Getting ready

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