Book Image

Advanced Infrastructure Penetration Testing

Book Image

Advanced Infrastructure Penetration Testing

Overview of this book

It has always been difficult to gain hands-on experience and a comprehensive understanding of advanced penetration testing techniques and vulnerability assessment and management. This book will be your one-stop solution to compromising complex network devices and modern operating systems. This book provides you with advanced penetration testing techniques that will help you exploit databases, web and application servers, switches or routers, Docker, VLAN, VoIP, and VPN. With this book, you will explore exploitation abilities such as offensive PowerShell tools and techniques, CI servers, database exploitation, Active Directory delegation, kernel exploits, cron jobs, VLAN hopping, and Docker breakouts. Moving on, this book will not only walk you through managing vulnerabilities, but will also teach you how to ensure endpoint protection. Toward the end of this book, you will also discover post-exploitation tips, tools, and methodologies to help your organization build an intelligent security system. By the end of this book, you will have mastered the skills and methodologies needed to breach infrastructures and provide complete endpoint protection for your system.
Table of Contents (14 chapters)

Kerberos authentication

Kerberos is an authentication protocol under RFC 1510, integrated in Windows operating systems from the beginning of this millennium. It was developed by the Massachusetts Institute of Technology (MIT) under the Athena Project. You can check it and test it via its official website, http://www.kerberos.org. The Kerberos environment contains three parts: the client, the server, and the Key Distribution Center (KDC), as shown in the following figure. It provides identity-based on a key distribution model, presented by Needham and Schroeder:

Kerberos needs the following five steps to proceed:

  1. Authentication is requested from the authentication server, KDC
  2. KDC sends back a session encrypted with the sender’s secret key, in addition to the ticket-granting encrypted with a ticket-granting service
  3. The receiver then decrypts the session and requests permission...