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Mastering Modern Web Penetration Testing

You're reading from   Mastering Modern Web Penetration Testing Master the art of conducting modern pen testing attacks and techniques on your web application before the hacker does!

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Product type Paperback
Published in Oct 2016
Publisher Packt
ISBN-13 9781785284588
Length 298 pages
Edition 1st Edition
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Authors (2):
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Prakhar Prasad Prakhar Prasad
Author Profile Icon Prakhar Prasad
Prakhar Prasad
Rafay Baloch Rafay Baloch
Author Profile Icon Rafay Baloch
Rafay Baloch
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Toc

Table of Contents (13) Chapters Close

Preface 1. Common Security Protocols FREE CHAPTER 2. Information Gathering 3. Cross-Site Scripting 4. Cross-Site Request Forgery 5. Exploiting SQL Injection 6. File Upload Vulnerabilities 7. Metasploit and Web 8. XML Attacks 9. Emerging Attack Vectors 10. OAuth 2.0 Security 11. API Testing Methodology Index

Chapter 6. File Upload Vulnerabilities

This chapter will deal with security issues related to file upload. I bet the readers must have encountered web applications in which there is a functionality to upload files, commonly in the form of an image, video, documents, and so on. However, if a web application has poor (or no) security mechanisms to prevent certain kinds of files, such as server-side scripting, then that can result in arbitrary code execution on the server. Even with limited file upload capability, we can execute arbitrary JS (XSS), CSRF, and run client-side exploits.

Let's go straight to our first demonstration of a file upload vulnerability through Damn Vulnerable Web Application (DVWA)—an open source PHP web application developed for the purpose of demonstrating different types of web vulnerabilities. We've already used DVWA in Chapter 3, Cross-Site Scripting (XSS) to demonstrate XSS. DVWA can be downloaded from http://www.dvwa.co.uk/.

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