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

Passive discovery

In the first section of this chapter, we will investigate various methods of the passive discovery of APIs. Not surprisingly, the techniques involve utilizing different search engines or online repositories to mine useful API metadata.

The finer details of a passive discovery phase will be determined by the target in mind. Sometimes the intent will be to search far and wide (for example, try and identify all APIs that an organization owns) and gain as much information as possible about the number of exposed targets available on the public internet. For example, let’s imagine you are attempting to exploit the API of a new router with a vulnerability—in this case, you will probably be attempting to find online instances with public IP addresses.

In other scenarios, you may know about a particular exploit and want to gain a deeper knowledge of using the exploit in practice. You might use a more narrow and deep strategy (for example, identify only...