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Mastering Metasploit

Mastering Metasploit

By : Nipun Jaswal
3.5 (4)
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Mastering Metasploit

Mastering Metasploit

3.5 (4)
By: Nipun Jaswal

Overview of this book

Updated for the latest version of Metasploit, this book will prepare you to face everyday cyberattacks by simulating real-world scenarios. Complete with step-by-step explanations of essential concepts and practical examples, Mastering Metasploit will help you gain insights into programming Metasploit modules and carrying out exploitation, as well as building and porting various kinds of exploits in Metasploit. Giving you the ability to perform tests on different services, including databases, IoT, and mobile, this Metasploit book will help you get to grips with real-world, sophisticated scenarios where performing penetration tests is a challenge. You'll then learn a variety of methods and techniques to evade security controls deployed at a target's endpoint. As you advance, you’ll script automated attacks using CORTANA and Armitage to aid penetration testing by developing virtual bots and discover how you can add custom functionalities in Armitage. Following real-world case studies, this book will take you on a journey through client-side attacks using Metasploit and various scripts built on the Metasploit 5.0 framework. By the end of the book, you’ll have developed the skills you need to work confidently with efficient exploitation techniques
Table of Contents (17 chapters)
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1
Section 1 – Preparation and Development
6
Section 2 – The Attack Phase
10
Section 3 – Post-Exploitation and Evasion

Exploiting SEH-based buffer overflows with Metasploit

Exception handlers are code modules that catch exceptions and errors generated during the execution of the program. This allows the program to continue execution instead of crashing. Windows OSes have default exception handlers, and we see them generally when an application crashes and throws a popup that says such and such a program encountered an error and needed to close. When the program generates a specific exception, the equivalent address of the catch code is loaded and called from the stack. However, if we somehow manage to overwrite the address in the stack for the catch code of the handler, we will be able to control the application. Let's see how things are arranged in a stack when an application is implemented with exception handlers:

Figure 3.24 – Address of the catch block in the stack

In the preceding diagram, we can see that we have the address of the catch block in the stack...

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