Book Image

Mastering Kali Linux for Advanced Penetration Testing - Third Edition

By : Vijay Kumar Velu, Robert Beggs
Book Image

Mastering Kali Linux for Advanced Penetration Testing - Third Edition

By: Vijay Kumar Velu, Robert Beggs

Overview of this book

This book takes you, as a tester or security practitioner, through the reconnaissance, vulnerability assessment, exploitation, privilege escalation, and post-exploitation activities used by pentesters. To start with, you'll use a laboratory environment to validate tools and techniques, along with an application that supports a collaborative approach for pentesting. You'll then progress to passive reconnaissance with open source intelligence and active reconnaissance of the external and internal infrastructure. You'll also focus on how to select, use, customize, and interpret the results from different vulnerability scanners, followed by examining specific routes to the target, which include bypassing physical security and the exfiltration of data using a variety of techniques. You'll discover concepts such as social engineering, attacking wireless networks, web services, and embedded devices. Once you are confident with these topics, you'll learn the practical aspects of attacking user client systems by backdooring with fileless techniques, followed by focusing on the most vulnerable part of the network – directly attacking the end user. By the end of this book, you'll have explored approaches for carrying out advanced pentesting in tightly secured environments, understood pentesting and hacking techniques employed on embedded peripheral devices.
Table of Contents (21 chapters)
Title Page
About Packt

Port, operating system, and service discovery

Kali provides several different tools useful for identifying open ports, operating systems, and installed services on remote hosts. The majority of these functions can be completed using nmap. Although we will focus on examples using nmap, the underlying principles apply to the other tools as well.

Port scanning

Port scanning is the process of connecting to TCP and UDP ports to determine what services and applications are running on the target device. There are 65,535 ports each for both TCP and UDP on each system. Some ports are known to be associated with particular services (for instance, TCP 20 and 21 are the usual ports for the File Transfer Protocol (FTP) service). The first 1,024 are the well-known ports, and most defined services run over ports in this range; accepted services and ports are maintained by IANA (


Although there are accepted ports...