Book Image

Certified Ethical Hacker (CEH) v12 312-50 Exam Guide

By : Dale Meredith
Book Image

Certified Ethical Hacker (CEH) v12 312-50 Exam Guide

By: Dale Meredith

Overview of this book

With cyber threats continually evolving, understanding the trends and using the tools deployed by attackers to determine vulnerabilities in your system can help secure your applications, networks, and devices. To outmatch attacks, developing an attacker's mindset is a necessary skill, which you can hone with the help of this cybersecurity book. This study guide takes a step-by-step approach to helping you cover all the exam objectives using plenty of examples and hands-on activities. You'll start by gaining insights into the different elements of InfoSec and a thorough understanding of ethical hacking terms and concepts. You'll then learn about various vectors, including network-based vectors, software-based vectors, mobile devices, wireless networks, and IoT devices. The book also explores attacks on emerging technologies such as the cloud, IoT, web apps, and servers and examines prominent tools and techniques used by hackers. Finally, you'll be ready to take mock tests, which will help you test your understanding of all the topics covered in the book. By the end of this book, you'll have obtained the information necessary to take the 312-50 exam and become a CEH v11 certified ethical hacker.
Table of Contents (23 chapters)
Section 1: Where Every Hacker Starts
Section 2: A Plethora of Attack Vectors
Section 3: Cloud, Apps, and IoT Attacks
Chapter 17: CEH Exam Practice Questions

What is enumeration?

This technique is usually conducted internally. While it can be done through reconnaissance, it is a slightly higher risk because we need an active connection to the target machine, which means what we're doing could be detected by a security team. When a user makes a connection to a network share, they must provide credentials. Those credentials are associated with what we refer to as an access control list (ACL). This ACL contains usernames and groups that have access and the permissions for those who access them. So, maybe we can trick the target machine into giving us that information without presenting our credentials.

We'll also look at some services. If we know of a specific service from looking at our reconnaissance and scanning techniques, we can enumerate those services to give us information that is about more than just the operating system. It's called a null session. A lot of the newer operating systems have blocked this capability...