Book Image

Learning iOS Penetration Testing

By : Swaroop Yermalkar
Book Image

Learning iOS Penetration Testing

By: Swaroop Yermalkar

Overview of this book

iOS has become one of the most popular mobile operating systems with more than 1.4 million apps available in the iOS App Store. Some security weaknesses in any of these applications or on the system could mean that an attacker can get access to the device and retrieve sensitive information. This book will show you how to conduct a wide range of penetration tests on iOS devices to uncover vulnerabilities and strengthen the system from attacks. Learning iOS Penetration Testing discusses the common vulnerabilities and security-related shortcomings in an iOS application and operating system, and will teach you to conduct static and dynamic analysis of iOS applications. This practical guide will help you uncover vulnerabilities in iOS phones and applications. We begin with basics of iOS security and dig deep to learn about traffic analysis, code analysis, and various other techniques. Later, we discuss the various utilities, and the process of reversing and auditing.
Table of Contents (17 chapters)
Learning iOS Penetration Testing
Foreword – Why Mobile Security Matters
About the Author
About the Reviewer

Decrypting unsigned iOS applications

We will first study how to decrypt unsigned applications, which means decrypting applications that are not downloaded from App Store. Let's decrypt the apps provided with the book. These apps are not signed by Apple. In Chapter 2, Setting up Lab for iOS App Pentesting you have already installed class-dump-z, which is used for dumping code of iOS applications.

Follow the given steps to decrypt an unsigned iOS application:

  1. Navigate to the directory where the iGoat application is installed and then use class-dump-z to decrypt the iGoat binary:

  2. Once you use class-dump-z, you can view the application's source code in plain text as depicted in the following screenshot: