Book Image

Improving your Penetration Testing Skills

By : Gilberto Najera-Gutierrez, Juned Ahmed Ansari, Daniel Teixeira, Abhinav Singh
Book Image

Improving your Penetration Testing Skills

By: Gilberto Najera-Gutierrez, Juned Ahmed Ansari, Daniel Teixeira, Abhinav Singh

Overview of this book

Penetration testing (or ethical hacking) is a legal and foolproof way to identify vulnerabilities in your system. With thorough penetration testing, you can secure your system against the majority of threats. This Learning Path starts with an in-depth explanation of what hacking and penetration testing are. You’ll gain a deep understanding of classical SQL and command injection flaws, and discover ways to exploit these flaws to secure your system. You'll also learn how to create and customize payloads to evade antivirus software and bypass an organization's defenses. Whether it’s exploiting server vulnerabilities and attacking client systems, or compromising mobile phones and installing backdoors, this Learning Path will guide you through all this and more to strengthen your defense against online attacks. By the end of this Learning Path, you'll have the knowledge and skills you need to invade a system and identify all its vulnerabilities. This Learning Path includes content from the following Packt books: • Web Penetration Testing with Kali Linux - Third Edition by Juned Ahmed Ansari and Gilberto Najera-Gutierrez • Metasploit Penetration Testing Cookbook - Third Edition by Abhinav Singh , Monika Agarwal, et al.
Table of Contents (24 chapters)
Title Page

Exploiting a Linux server

Linux is one of the most widely used operating systems. In the previous few recipes, we saw how to scan for available services and use vulnerability scanners to find vulnerabilities. In this recipe, we will deal with Linux operating systems. We will be using the Metasploitable 2, for our vulnerable Linux machine in this recipe, but the process will be similar for exploiting any flavor of Linux and Solaris running the Samba service. Let's move ahead with the recipe.

Getting ready

  1. First, will use the services command to display the results from our previous nmap scan and filter for ports 139 and 445:
msf > services -c port,info -p 139,445 192.168.216.129

Services
========

host port info...