Book Image

Learn Ethical Hacking from Scratch.

By : Zaid Sabih
5 (1)
Book Image

Learn Ethical Hacking from Scratch.

5 (1)
By: Zaid Sabih

Overview of this book

This book starts with the basics of ethical hacking, how to practice hacking safely and legally, and how to install and interact with Kali Linux and the Linux terminal. You will explore network hacking, where you will see how to test the security of wired and wireless networks. You’ll also learn how to crack the password for any Wi-Fi network (whether it uses WEP, WPA, or WPA2) and spy on the connected devices. Moving on, you will discover how to gain access to remote computer systems using client-side and server-side attacks. You will also get the hang of post-exploitation techniques, including remotely controlling and interacting with the systems that you compromised. Towards the end of the book, you will be able to pick up web application hacking techniques. You'll see how to discover, exploit, and prevent a number of website vulnerabilities, such as XSS and SQL injections. The attacks covered are practical techniques that work against real systems and are purely for educational purposes. At the end of each section, you will learn how to detect, prevent, and secure systems from these attacks.
Table of Contents (24 chapters)
22
Discovering Vulnerabilities Automatically Using OWASP ZAP

WPA introduction

In the upcoming parts of this chapter, we're going to discuss Wi-Fi Protected Access (WPA) encryption. This encryption was designed after WEP, to address all of the issues that made WEP very easy to crack. The main issue with WEP is the short IV, which is sent in each packet as plain text. The short IV means that the possibility of having a unique IV in each packet can be exhausted in active networks, so that when we are injecting packets (or in natural, active networks), we will end up with more than one packet that has the same IV. When it happens, aircrack-ng can use statistical attacks to determine the key stream and the WEP key for the network.

In WPA, however, each packet is encrypted using a unique, temporary key. It means that the number of data packets that we collect is irrelevant; even if we are able to collect one million packets, these packets...