Book Image

Zed Attack Proxy Cookbook

By : Ryan Soper, Nestor N Torres, Ahmed Almoailu
Book Image

Zed Attack Proxy Cookbook

By: Ryan Soper, Nestor N Torres, Ahmed Almoailu

Overview of this book

Maintaining your cybersecurity posture in the ever-changing, fast-paced security landscape requires constant attention and advancements. This book will help you safeguard your organization using the free and open source OWASP Zed Attack Proxy (ZAP) tool, which allows you to test for vulnerabilities and exploits with the same functionality as a licensed tool. Zed Attack Proxy Cookbook contains a vast array of practical recipes to help you set up, configure, and use ZAP to protect your vital systems from various adversaries. If you're interested in cybersecurity or working as a cybersecurity professional, this book will help you master ZAP. You’ll start with an overview of ZAP and understand how to set up a basic lab environment for hands-on activities over the course of the book. As you progress, you'll go through a myriad of step-by-step recipes detailing various types of exploits and vulnerabilities in web applications, along with advanced techniques such as Java deserialization. By the end of this ZAP book, you’ll be able to install and deploy ZAP, conduct basic to advanced web application penetration attacks, use the tool for API testing, deploy an integrated BOAST server, and build ZAP into a continuous integration and continuous delivery (CI/CD) pipeline.
Table of Contents (14 chapters)

Testing cross-origin resource sharing

To understand cross-origin resource sharing (CORS) vulnerability, first, you have to understand the same-origin policy. The same-origin policy was created to restrict the ability of websites to access resources that are not from the source domain. Although for some websites the same-origin policy is a problem, many websites nowadays interact with subdomains or third-party websites that need cross-origin exceptions. CORS was created to resolve this issue.

Getting ready

This lab requires a PortSwigger Academy account and ZAP to intercept requests and responses from the server to your browser. The login credentials for the lab web application are as follows:

  • Username: wiener
  • Password: peter

How to do it...

In this recipe, the lab introduces a vulnerable website with an insecure CORS configuration to trust all origins. To solve this, we’ll form a malicious JavaScript function using CORS to retrieve an administrator...