Book Image

IoT Penetration Testing Cookbook

By : Aaron Guzman, Aditya Gupta
Book Image

IoT Penetration Testing Cookbook

By: Aaron Guzman, Aditya Gupta

Overview of this book

IoT is an upcoming trend in the IT industry today; there are a lot of IoT devices on the market, but there is a minimal understanding of how to safeguard them. If you are a security enthusiast or pentester, this book will help you understand how to exploit and secure IoT devices. This book follows a recipe-based approach, giving you practical experience in securing upcoming smart devices. It starts with practical recipes on how to analyze IoT device architectures and identify vulnerabilities. Then, it focuses on enhancing your pentesting skill set, teaching you how to exploit a vulnerable IoT device, along with identifying vulnerabilities in IoT device firmware. Next, this book teaches you how to secure embedded devices and exploit smart devices with hardware techniques. Moving forward, this book reveals advanced hardware pentesting techniques, along with software-defined, radio-based IoT pentesting with Zigbee and Z-Wave. Finally, this book also covers how to use new and unique pentesting techniques for different IoT devices, along with smart devices connected to the cloud. By the end of this book, you will have a fair understanding of how to use different pentesting techniques to exploit and secure various IoT devices.
Table of Contents (19 chapters)
Title Page
About the Authors
About the Reviewers
Customer Feedback

Preventing memory-corruption vulnerabilities

While using lower level languages such as C, there is a high chance of memory corruption bugs arising if bounds are not properly checked and validated by developers programmatically. Preventing the use of known dangerous functions and APIs aids against memory-corruption vulnerabilities within firmware. For example, a non-exhaustive list of known, unsafe C functions consists of: strcat, strcpy, sprintf, scanf, and gets. Common memory-corruption vulnerabilities such as buffer overflows or heap overflows can consist of overflowing the stack or the heap. The impact of these specific memory-corruption vulnerabilities when exploited differ per the operating system platform. For example, commercial RTOS platforms such as QNX Neutrino isolates each process and its stack from the filesystem minimizing the attack surface. However, for common Embedded Linux distributions this may not be the case. Buffer overflows in Embedded Linux may result in arbitrary...