Book Image

Fuzzing Against the Machine

By : Antonio Nappa, Eduardo Blázquez
Book Image

Fuzzing Against the Machine

By: Antonio Nappa, Eduardo Blázquez

Overview of this book

Emulation and fuzzing are among the many techniques that can be used to improve cybersecurity; however, utilizing these efficiently can be tricky. Fuzzing Against the Machine is your hands-on guide to understanding how these powerful tools and techniques work. Using a variety of real-world use cases and practical examples, this book helps you grasp the fundamental concepts of fuzzing and emulation along with advanced vulnerability research, providing you with the tools and skills needed to find security flaws in your software. The book begins by introducing you to two open source fuzzer engines: QEMU, which allows you to run software for whatever architecture you can think of, and American fuzzy lop (AFL) and its improved version AFL++. You’ll learn to combine these powerful tools to create your own emulation and fuzzing environment and then use it to discover vulnerabilities in various systems, such as iOS, Android, and Samsung's Mobile Baseband software, Shannon. After reading the introductions and setting up your environment, you’ll be able to dive into whichever chapter you want, although the topics gradually become more advanced as the book progresses. By the end of this book, you’ll have gained the skills, knowledge, and practice required to find flaws in any firmware by emulating and fuzzing it with QEMU and several fuzzing engines.
Table of Contents (18 chapters)
Part 1: Foundations
Part 2: Emulation and Fuzzing
Part 3: Advanced Concepts
Chapter 12: Conclusion and Final Remarks

Part 3: Advanced Concepts

In this final part of the book, you will start fuzzing from real systems, with examples extracted from different projects. You will learn how to configure the tool for properly doing emulation, and also how to modify the emulator and fuzzer code to apply fuzzing techniques to different well-known systems. Different real-life case studies are given. First, the book starts with the study of a CVE in Samsung Exynos Baseband. It follows with a fuzzing to the syscalls from OpenWrt both on Intel and ARM architectures. To wrap up, the book ends with a study on iOS emulation and fuzzing, and finally, the book teaches you how to exploit libraries compiled for Android with an open source project. A conclusion chapter ends this journey with a message to you.

This part consists of the following chapters:

  • Chapter 7, Real-Life Case Study – Samsung Exynos Baseband
  • Chapter 8, Case Study – OpenWrt Full-System Fuzzing
  • Chapter 9, Case Study...