Book Image

Defending APIs

By : Colin Domoney
Book Image

Defending APIs

By: Colin Domoney

Overview of this book

Along with the exponential growth of API adoption comes a rise in security concerns about their implementation and inherent vulnerabilities. For those seeking comprehensive insights into building, deploying, and managing APIs as the first line of cyber defense, this book offers invaluable guidance. Written by a seasoned DevSecOps expert, Defending APIs addresses the imperative task of API security with innovative approaches and techniques designed to combat API-specific safety challenges. The initial chapters are dedicated to API building blocks, hacking APIs by exploiting vulnerabilities, and case studies of recent breaches, while the subsequent sections of the book focus on building the skills necessary for securing APIs in real-world scenarios. Guided by clear step-by-step instructions, you’ll explore offensive techniques for testing vulnerabilities, attacking, and exploiting APIs. Transitioning to defensive techniques, the book equips you with effective methods to guard against common attacks. There are plenty of case studies peppered throughout the book to help you apply the techniques you’re learning in practice, complemented by in-depth insights and a wealth of best practices for building better APIs from the ground up. By the end of this book, you’ll have the expertise to develop secure APIs and test them against various cyber threats targeting APIs.
Table of Contents (19 chapters)
1
Part 1: Foundations of API Security
6
Part 2: Attacking APIs
10
Part 3: Defending APIs

Exploring the Open Worldwide Application Security Project API Security Top 10

Let us now start our exploration of the Open Worldwide Application Security Project API Security Top 10 vulnerabilities. Although the standard Open Worldwide Application Security Project listing provides the vulnerabilities in decreasing order of severity, I have chosen to group them by vulnerability type and root cause to aid understanding. Shall we begin?

Object-level vulnerabilities

There is only one object-level vulnerability, which is the now infamous broken object-level authorization, which is number one in the Open Worldwide Application Security Project API Security Top 10.

API1:2019—Broken object-level authorization

The easiest real-world analogy to understand broken object-level authorization (BOLA) is that of a coat check-in at an entertainment venue. Upon arrival, you drop your coat off with the clerk and are given a ticket with a number, let’s say #10, for example. Now...