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Nmap: Network Exploration and Security Auditing Cookbook

You're reading from   Nmap: Network Exploration and Security Auditing Cookbook Network discovery and security scanning at your fingertips

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Product type Paperback
Published in May 2017
Publisher
ISBN-13 9781786467454
Length 416 pages
Edition 2nd Edition
Languages
Tools
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Author (1):
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Paulino Calderon Paulino Calderon
Author Profile Icon Paulino Calderon
Paulino Calderon
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Table of Contents (18) Chapters Close

Preface 1. Nmap Fundamentals 2. Network Exploration FREE CHAPTER 3. Reconnaissance Tasks 4. Scanning Web Servers 5. Scanning Databases 6. Scanning Mail Servers 7. Scanning Windows Systems 8. Scanning ICS SCADA Systems 9. Optimizing Scans 10. Generating Scan Reports 11. Writing Your Own NSE Scripts 12. HTTP, HTTP Pipelining, and Web Crawling Configuration Options 13. Brute Force Password Auditing Options 14. NSE Debugging 15. Additional Output Options 16. Introduction to Lua 17. References and Additional Reading

Crawling web servers to detect vulnerabilities

When assessing the security of web applications, there are certain checks that need to be done to every file in a web server. For example, looking for forgotten backup files may reveal the application source code or database passwords. The Nmap Scripting Engine supports web crawling, to help us with tasks that require a list of existing files on a web server.

This recipe will show you how to write an NSE script that will crawl a web server looking for files with a .php extension and perform an injection test via the variable $_SERVER["PHP_SELF"] to find reflected cross-site scripting vulnerabilities.

How to do it...

A common task that some major security scanners miss is to locate reflected cross-site scripting...

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