Book Image

Nmap Network Exploration and Security Auditing Cookbook, Third Edition - Third Edition

By : Paulino Calderon
Book Image

Nmap Network Exploration and Security Auditing Cookbook, Third Edition - Third Edition

By: Paulino Calderon

Overview of this book

Nmap is one of the most powerful tools for network discovery and security auditing used by millions of IT professionals, from system administrators to cybersecurity specialists. This third edition of the Nmap: Network Exploration and Security Auditing Cookbook introduces Nmap and its family - Ncat, Ncrack, Ndiff, Zenmap, and the Nmap Scripting Engine (NSE) - and guides you through numerous tasks that are relevant to security engineers in today’s technology ecosystems. The book discusses some of the most common and useful tasks for scanning hosts, networks, applications, mainframes, Unix and Windows environments, and ICS/SCADA systems. Advanced Nmap users can benefit from this book by exploring the hidden functionalities within Nmap and its scripts as well as advanced workflows and configurations to fine-tune their scans. Seasoned users will find new applications and third-party tools that can help them manage scans and even start developing their own NSE scripts. Practical examples featured in a cookbook format make this book perfect for quickly remembering Nmap options, scripts and arguments, and more. By the end of this Nmap book, you will be able to successfully scan numerous hosts, exploit vulnerable areas, and gather valuable information.
Table of Contents (22 chapters)
Appendix A: HTTP, HTTP Pipelining, and Web Crawling Configuration Options
Appendix Β: Brute-Force Password Auditing Options
Appendix F: References and Additional Reading

Making HTTP requests to identify vulnerable Supermicro IPMI/BMC controllers

NSE has a library to handle requests and other common functions of an HTTP client. With the NSE http library, NSE developers can accomplish many tasks, from information gathering to vulnerability exploitation of web applications.

This recipe will show you how to use the http NSE library to send an HTTP request to identify vulnerable Supermicro IPMI/BMC controllers.

How to do it...

Some Supermicro IPMI/BMC controllers allow unauthenticated access to a configuration file (/PSBlock) that stores plain text administrative credentials. Let's write a simple NSE script to detect these vulnerable controllers.

For now, let's ignore the documentation tags and keep it simple:

  1. Create the supermicro-psblock.nse and file start by filling in the NSE script basic information fields:
    description = [[
    Attempts to download an unprotected configuration file containing plain-text user credentials in...