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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 FREE CHAPTER 2. Network Exploration 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

Brute forcing MS SQL passwords


System administrators and penetration testers often need to check for weak passwords as part of the organization's security policy. Nmap can help us to perform dictionary attacks against MS SQL servers.

This recipe shows how to perform brute force password auditing of MS SQL servers with Nmap.

How to do it...

To perform brute force password auditing against an MS SQL server, run the following Nmap command:

$ nmap -p1433 --script ms-sql-brute <target>

If any valid accounts are found, they will be included in the script output section:

   PORT     STATE SERVICE  
   1433/tcp open  ms-sql-s  
   | ms-sql-brute:  
   |   [192.168.1.102:1433]  
   |     Credentials found:  
   |_      sa:karate 

How it works...

MS SQL servers usually run on TCP port 1433. The -p1433 --script ms-sql-brute argument initiate the NSE script ms-sql-brute if a MS SQL server is found running on port 1433.

The ms-sql-brute script was written by Patrik Karlsson. It performs brute force password...

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