In this chapter, we have seen what web application penetration testing is, why it is important to perform the test, what the methodology to follow is when performing a penetration test, the different domains that need to be covered, and why it is important to know how to write your own tools with Python.
We have also seen the tools that make the web application pen tested tool kit. This helped us understand how the tools align with the methodology and will also serve as inspiration when we need to create our own tools, learn from them, and understand how they work.
We also saw the lab environment that we'll be using throughout this book.
We have installed VirtualBox, run the lab virtual machine, and accessed the testing web app, scruffy bank. We saw a quick example of the text editor, and finally, we saw an important warning about the consequences of doing penetration testing without permission from the customer.
In Chapter 2, Interacting with Web Applications, we'll learn how to interact with a web application using Python, understand the anatomy of an HTTP request, URL, headers, message body, and we'll create a script to perform a request and interpret the response and its headers.
