Book Image

Burp Suite Cookbook

By : Sunny Wear
Book Image

Burp Suite Cookbook

By: Sunny Wear

Overview of this book

Burp Suite is a Java-based platform for testing the security of your web applications, and has been adopted widely by professional enterprise testers. The Burp Suite Cookbook contains recipes to tackle challenges in determining and exploring vulnerabilities in web applications. You will learn how to uncover security flaws with various test cases for complex environments. After you have configured Burp for your environment, you will use Burp tools such as Spider, Scanner, Intruder, Repeater, and Decoder, among others, to resolve specific problems faced by pentesters. You will also explore working with various modes of Burp and then perform operations on the web. Toward the end, you will cover recipes that target specific test scenarios and resolve them using best practices. By the end of the book, you will be up and running with deploying Burp for securing web applications.
Table of Contents (13 chapters)

Testing session token strength using Sequencer

To track user activity from page to page within an application, developers create and assign unique session token values to each user. Most session token mechanisms include session IDs, hidden form fields, or cookies. Cookies are placed within the user's browser on the client-side.

These session tokens should be examined by a penetration tester to ensure their uniqueness, randomness, and cryptographic strength, to prevent information leakage.

If a session token value is easily guessable or remains unchanged after login, an attacker could apply (or fixate) a pre-known token value to a user. This is known as a session fixation attack. Generally speaking, the purpose of the attack is to harvest sensitive data in the user's account, since the session token is known to the attacker.