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Attacking and Exploiting Modern Web Applications

You're reading from  Attacking and Exploiting Modern Web Applications

Product type Book
Published in Aug 2023
Publisher Packt
ISBN-13 9781801816298
Pages 338 pages
Edition 1st Edition
Languages
Authors (2):
Simone Onofri Simone Onofri
Profile icon Simone Onofri
Donato Onofri Donato Onofri
Profile icon Donato Onofri
View More author details

Table of Contents (14) Chapters

Preface 1. Part 1: Attack Preparation
2. Chapter 1: Mindset and Methodologies 3. Chapter 2: Toolset for Web Attacks and Exploitation 4. Part 2: Evergreen Attacks
5. Chapter 3: Attacking the Authentication Layer – a SAML Use Case 6. Chapter 4: Attacking Internet-Facing Web Applications – SQL Injection and Cross-Site Scripting (XSS) on WordPress 7. Chapter 5: Attacking IoT Devices – Command Injection and Path Traversal 8. Part 3: Novel Attacks
9. Chapter 6: Attacking Electron JavaScript Applications – from Cross-Site Scripting (XSS) to Remote Command Execution (RCE) 10. Chapter 7: Attacking Ethereum Smart Contracts – Reentrancy, Weak Sources of Randomness, and Business Logic 11. Chapter 8: Continuing the Journey of Vulnerability Discovery 12. Index 13. Other Books You May Enjoy

LicenseManager smart contract scenario

The following scenario unfolds as a CTF game we created and published on QuillAcademy [7].

We have the LicenseManager smart contract on the blockchain, where each license costs 1 ether.

Our objective? With only 0.01 ether, we need to buy a license and then find a way to collect the ethers in the contract before the owner notices.

Before diving into this scenario, let’s take a high-level look at the significant security incidents of blockchain to understand common vulnerabilities.

Note to chief information security executive officers (CISOs)

As with new technologies, blockchain often brings new opportunities and risks that must be understood and managed correctly.

If you are in an organization, it is possible to implement blockchain technologies on multiple levels:

a. Building your private blockchain with all the issues related to cryptography and programming

b. Having nodes where the blockchain runs, with the various...

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