Book Image

Kali Linux Web Penetration Testing Cookbook

By : Gilberto Najera-Gutierrez
Book Image

Kali Linux Web Penetration Testing Cookbook

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 and operating system that provides a huge array of testing tools, many of which can be used specifically to execute web penetration testing. This book will teach you, in the form step-by-step recipes, how to detect a wide array of vulnerabilities, exploit them to analyze their consequences, and ultimately buffer attackable surfaces so applications are more secure, for you and your users. Starting from the setup of a testing laboratory, this book will give you the skills you need to cover every stage of a penetration test: from gathering information about the system and the application to identifying vulnerabilities through manual testing and the use of vulnerability scanners to both basic and advanced exploitation techniques that may lead to a full system compromise. Finally, we will put this into the context of 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 the book, you will have the required skills to identify, exploit, and prevent web application vulnerabilities.
Table of Contents (17 chapters)
Kali Linux Web Penetration Testing Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Identifying error based SQL injection


Injection flaws is the number one kind of vulnerability in the OWASP top 10 list from 2013; included, among others, the one that we will test in this recipe: SQL Injection (SQLi).

Most modern web applications implement some kind of database, be it local or remote. SQL is the most popular language. In a SQLi attack, the attacker seeks to abuse the communication between application and database by making the application send altered queries by injecting SQL commands in forms' inputs or any other parameter in the request that is used to build a SQL statement in the server.

In this recipe, we will test the inputs of a web application to see if it is vulnerable to SQL Injection.

How to do it...

Log into DVWA and then perform the following steps:

  1. Go to SQL Injection.

  2. Similar to the previous recipe, let's test the normal behavior of the application by introducing a number. Set User ID as 1 and click on Submit.

    By interpreting the result, we can say that the application...