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

A4 – Preventing Insecure Direct Object References


When an application allows an attacker, who is an authenticated user, to simply change a parameter value that directly refers to a system object in a request and with that gain access to another object that isn't authorized, then we have an Insecure Direct Object Reference (IDOR). A couple of examples that we have already seen are the Local File Inclusion and Directory Traversal vulnerabilities.

According to OWASP, IDOR is the fourth most critical type of vulnerability in Web applications. These vulnerabilities are usually caused by a deficient access control implementation or the use of a "Security through obscurity" policy—if the user cannot see it, they will not know it exists—which tends to be a very common practice among inexperienced developers.

In this recipe, we will cover the key aspects that should be taken into account when designing access control mechanisms in order to prevent IDOR vulnerabilities.

How to do it...

  1. The use of indirect...