Now let's talk about how we can prevent XSS vulnerabilities. These vulnerabilities exist because whenever a user enters something into a textbox or a parameter, that input is displayed in the HTML, so it's treated as if it's part of the page. Therefore, if there is JavaScript in it, the code is executed. To prevent this exploit, the best thing to do is to try and minimize the usage of untrusted input. Given this exploit, we should try to minimize occasions where the user inputs something or where something is input from parameters. Also, make sure that we always escape whatever is going to be displayed or used in the HTML page, because XSS can not only be injected into places where things are displayed on the page, but it can also be injected into parameters of certain elements of the HTML page. Escaping means that we convert each of the characters...
Learn Ethical Hacking from Scratch.
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Learn Ethical Hacking from Scratch.
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Overview of this book
This book starts with the basics of ethical hacking, how to practice hacking safely and legally, and how to install and interact with Kali Linux and the Linux terminal. You will explore network hacking, where you will see how to test the security of wired and wireless networks. You’ll also learn how to crack the password for any Wi-Fi network (whether it uses WEP, WPA, or WPA2) and spy on the connected devices.
Moving on, you will discover how to gain access to remote computer systems using client-side and server-side attacks. You will also get the hang of post-exploitation techniques, including remotely controlling and interacting with the systems that you compromised. Towards the end of the book, you will be able to pick up web application hacking techniques. You'll see how to discover, exploit, and prevent a number of website vulnerabilities, such as XSS and SQL injections.
The attacks covered are practical techniques that work against real systems and are purely for educational purposes. At the end of each section, you will learn how to detect, prevent, and secure systems from these attacks.
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Current Title:
Learn Ethical Hacking from Scratch.
Table of Contents (24 chapters)
Preface
Free Chapter
Introduction
Setting Up a Lab
Network Penetration Testing
Pre-Connection Attacks
Network Penetration Testing - Gaining Access
Post-Connection Attacks
Man-in-the-Middle Attacks
Network Penetration Testing, Detection, and Security
Gaining Access to Computer Devices
Scanning Vulnerabilities Using Tools
Client-Side Attacks
Client-Side Attacks - Social Engineering
Attack and Detect Trojans with BeEF
Attacks Outside the Local Network
Post Exploitation
Website Penetration Testing
Website Pentesting - Information Gathering
File Upload, Code Execution, and File Inclusion Vulnerabilities
SQL Injection Vulnerabilities
Cross-Site Scripting Vulnerabilities
Discovering Vulnerabilities Automatically Using OWASP ZAP
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