Book Image

Advanced Penetration Testing for Highly-Secured Environments, Second Edition - Second Edition

By : Lee Allen, Kevin Cardwell
Book Image

Advanced Penetration Testing for Highly-Secured Environments, Second Edition - Second Edition

By: Lee Allen, Kevin Cardwell

Overview of this book

The defences continue to improve and become more and more common, but this book will provide you with a number or proven techniques to defeat the latest defences on the networks. The methods and techniques contained will provide you with a powerful arsenal of best practices to increase your penetration testing successes. The processes and methodology will provide you techniques that will enable you to be successful, and the step by step instructions of information gathering and intelligence will allow you to gather the required information on the targets you are testing. The exploitation and post-exploitation sections will supply you with the tools you would need to go as far as the scope of work will allow you. The challenges at the end of each chapter are designed to challenge you and provide real-world situations that will hone and perfect your penetration testing skills. You will start with a review of several well respected penetration testing methodologies, and following this you will learn a step-by-step methodology of professional security testing, including stealth, methods of evasion, and obfuscation to perform your tests and not be detected! The final challenge will allow you to create your own complex layered architecture with defences and protections in place, and provide the ultimate testing range for you to practice the methods shown throughout the book. The challenge is as close to an actual penetration test assignment as you can get!
Table of Contents (19 chapters)
Advanced Penetration Testing for Highly-Secured Environments Second Edition
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Buffer overflows – a refresher


Buffer overflows are the bread and butter of attackers in the wild. When this type of vulnerability is properly exploited, an attack may lead to complete system compromise in mere seconds. Ideally, many of these vulnerabilities may be prevented by the proper implementation of a security development lifecycle. If your client does not have such practices, you may be required to perform steps that are above and beyond standard penetration testing, and prove that there are flaws in the (often internally developed) applications being deployed across the enterprise.

Tip

Not all buffer overflow vulnerabilities can be used to create remote exploits. Also note that not all buffer overflows are exploitable.

More often than not, programming errors that allow for buffer overflows are not intentional or due to lazy developers. Frequently, buffer overflow vulnerabilities are missed during the application development stages because of either the complexity of the application...