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)
1
Section 1: Where Every Hacker Starts
10
Section 2: A Plethora of Attack Vectors
15
Section 3: Cloud, Apps, and IoT Attacks
20
Chapter 17: CEH Exam Practice Questions

Evading IDS

Hackers will attempt to bypass firewalls and network IDSs (NIDSs) when it comes to sniffing. NIDSs function by checking every packet that passes through the network, checking whether it's part of an established connection (such as a web page request) or whether it's trying to establish new network connections (such as someone trying to log in to your wireless router). It generates alerts when it spots any suspicious traffic, which is what an attacker wants to avoid.

Host-based IDS (HIDS)

HIDSs are installed on the host machine and monitor for processes that are attempting to gain unauthorized access or use of data. Again, they generate alerts when they spot anything suspicious.

HIDSs can be very effective with LANs, but most wireless connections do not require a login (such as Wi-Fi), so HIDSs are only applicable if you're on a network you trust.

IPS

An intrusion prevention system (IPS) is yet another solution. These are designed to check...