Defending APIs: Uncover advanced defense techniques to craft secure application programming interfaces

✍ Scribed by Colin Domoney

• Publisher: Packt Publishing
• Year: 2024
• Tongue: English
• Leaves: 384
• Category: Library

✦ Synopsis

Get up to speed with API security using this comprehensive guide full of best practices for building safer and secure APIs

Key Features

• Develop a profound understanding of the inner workings of APIs with a sharp focus on security
• Learn the tools and techniques employed by API security testers and hackers, establishing your own hacking laboratory
• Master the art of building robust APIs with shift-left and shield-right approaches, spanning the API lifecycle
• Purchase of the print or Kindle book includes a free PDF eBook

Book Description

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.

What you will learn

• Explore the core elements of APIs and their collaborative role in API development
• Understand the OWASP API Security Top 10, dissecting the root causes of API vulnerabilities
• Obtain insights into high-profile API security breaches with practical examples and in-depth analysis
• Use API attacking techniques adversaries use to attack APIs to enhance your defensive strategies
• Employ shield-right security approaches such as API gateways and firewalls
• Defend against common API vulnerabilities across several frameworks and languages, such as .NET, Python, and Java

Who this book is for

This book is for application security engineers, blue teamers, and security professionals looking forward to building an application security program targeting API security. For red teamers and pentesters, it provides insights into exploiting API vulnerabilities. API developers will benefit understanding, anticipating, and defending against potential threats and attacks on their APIs. While basic knowledge of software and security is required to understand the attack vectors and defensive techniques explained in the book, a thorough understanding of API security is all you need to get started.

Table of Contents

1. What Is API Security?
2. API Access Control
3. Understanding Common API Vulnerabilities
4. Case Studies of Recent Breaches
5. Foundations of Attacking APIs
6. Discovering APIs
7. Attacking APIs
8. Shift-Left for API Security
9. Defending against Common Vulnerabilities
10. Securing Your Frameworks and Languages
11. Shield-Right for APIs with Runtime Protection
12. Securing Microservices
13. Implementing an API Security Strategy

✦ Table of Contents

Cover
Title Page
Copyright and Credits
Foreword
Contributors
Table of Contents
Preface
Part 1: Foundations of API Security
Chapter 1: What Is API Security?
Why API security is important
The growth of the API economy
APIs are popular with developers
APIs are increasingly popular with attackers
Your existing tools do not work well for APIs
Developers often lack an understanding of API security
Exploring API building blocks
Rate limiting
Cryptography
Hashes, HMACs, and signatures
Transport security
Encoding
Examining API data formats
Understanding the elements of API security
DevOps
SAST, DAST, SCA, and WAFs
API management and gateways
API security platforms
Setting API security goals
The three pillars of security
Abuse and misuse cases
Data governance
A positive security model
Risk-based methodology
Summary
Further reading
Chapter 2: Understanding APIs
Understanding HTTP fundamentals
Uniform Resource Locator
Requests
Responses
Methods
Status codes
Sessions
Exploring the types of APIs
REST
GraphQL
RPC
SOAP
WebSockets
Access control
No authentication
HTTP authentication
AWS keyed-HMAC authentication
Session cookies
API keys
OAuth 2.0
Access control best practices and methods
Using JWTs for claims and identity
Summary
Further reading
Chapter 3: Understanding Common API Vulnerabilities
The importance of vulnerability classification
Exploring the Open Worldwide Application Security Project API Security Top 10
Object-level vulnerabilities
Authentication vulnerabilities
Function-level vulnerabilities
Data vulnerabilities
Configuration vulnerabilities
Implementation vulnerabilities
Vulnerabilities versus abuse cases
Exploring abuse cases
Business logic vulnerabilities
Preview of the Open Worldwide Application Security Project API Security Top 10 2023
Summary
Further reading
Chapter 4: Investigating Recent Breaches
The importance of learning from mistakes
Examining 10 high-profile API breaches from 2022
1–Global shipping company
2–Campus access control
3–Microbrewery application
4–Cryptocurrency portal
5–Dating application
6–The All in One SEO WordPress plugin
7–X account information leakage
8–Home router
9–Remote access to two popular vehicles
10–Smart Scale
Key takeaways and learning
Summary
Further reading
Part 2: Attacking APIs
Chapter 5: Foundations of Attacking APIs
Technical requirements
Understanding API attackers and their methods
Interacting with APIs
Finding API keys
Enumeration and discovery of APIs
Fuzzing API endpoints
Attacking JWTs
Mastering the tools of the trade
CLI clients (HTTPie/cURL)
Postman
Browser tools
Burp Suite
Reverse proxies
Learning the key skills of API attacking
Building a laboratory
Hacking vulnerable APIs
Training courses
Summary
Further reading
Chapter 6: Discovering APIs
Technical requirements
Passive discovery
Google
Offensive security Google database
Other API-specific searchable databases
Code analysis techniques
Active discovery
Network discovery and scan
OWASP ZAP
Burp Suite
Reverse-engineering mobile apps
Postman
Implementation analysis
Verbose error and debug messages
OS and framework enumeration
Timing or volume attacks
Utilizing online tools such as BuiltWith or Wappalyzer
Evading common defenses
Summary
Further reading
Chapter 7: Attacking APIs
Technical requirements
Authentication attacks
Insecure implementation logic
Attacking design weaknesses
Authorization attacks
Object-level authorization
Function-level authorization
Data attacks
Injection attack
Detecting injection vulnerabilities
SQL injection
NoSQL injection
Command injection
Path traversal
Server-side request forgery
Other API attacks
API abuse
Unrestricted access to sensitive business flows
Business logic attacks
Summary
Further reading
Part 3: Defending APIs
Chapter 8: Shift-Left for API Security
Technical requirements
Using the OpenAPI Specification
Data
Security
Generating client and server code
Leveraging the positive security model
Conducting threat modeling of APIs
Automating API security
CI/CD integration
Semgrep
Thinking like an attacker
Summary
Further reading
Chapter 9: Defending against Common Vulnerabilities
Technical requirements
Authentication vulnerabilities
Handling JWTs securely
Implementing OAuth2
Password and token hardening
Securing the reset process
Handling authentication in code
Authorization vulnerabilities
Object-level vulnerabilities
Function-level vulnerabilities
Using authorization middleware
Data vulnerabilities
Excessive data exposure
Mass assignment
Implementation vulnerabilities
Injection
Server-Side Request Forgery
Insufficient logging and monitoring
Protecting against unrestricted resource consumption
Defending against API business-level attacks
Unrestricted access to sensitive business flows
Unsafe consumption of APIs
Summary
Further reading
Chapter 10: Securing Your Frameworks and Languages
Technical requirements
Managing the design-first process in the real world
Using code-generation tools
Swagger Codegen
OpenAPI Generator
Summary
Further reading
Chapter 11: Shield Right for APIs with Runtime Protection
Technical requirements
Securing and hardening environments
Container images
Operating systems
Using WAFs
Understanding the Next-Generation Firewall (NGWAF) and Web Application API Protection (WAAP) products
Using API gateways and API management
Implementing security patterns in the Kong API gateway
Best practices for API gateway protection
Deploying API firewalls
API monitoring and alerting
Selecting the correct protections for your APIs
Summary
Further reading
Chapter 12: Securing Microservices
Technical requirements
Understanding microservices
Securing the foundations of microservices
Securing the connectivity of microservices
Access control for microservices
Running secure microservices in practice
Summary
Further reading
Chapter 13: Implementing an API Security Strategy
Ownership of API security
Understanding your stakeholders
Roles and responsibilities
The 42Crunch maturity model
Inventory
Design
Development
Testing
Protection
Governance
Planning your program
Establishing your objectives
Assessing your current state
Building a landing zone for APIs
Running your program
Building your teams
Tracking your progress
Integrating with your existing AppSec program
Your personal API security journey
Summary
Further reading
Index
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