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 (25 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
13
Brute Force Password Auditing Options
17
References and Additional Reading

Brute forcing Oracle SID names


Oracle SID names are used to identify database instances. The TNS listener service allows us to attempt dictionary attacks to find valid SID names.

This recipe shows how to brute force Oracle SID names with Nmap.

How to do it...

To brute force Oracle SID names, use the following Nmap command:

$ nmap -sV --script oracle-sid-brute <target>

All the SIDs found will be included in the NSE script output section for oracle-sid-brute:

   PORT     STATE SERVICE REASON 
   1521/tcp open  oracle  syn-ack 
   | oracle-sid-brute:   
   |   orcl 
   |   prod 
   |_  devel 

How it works...

The argument  -sV --script oracle-sid-brute tell Nmap to initiate service detection (-sV) and use the NSE script oracle-sid-brute

The NSE script oracle-sid-brute was submitted by Patrik Karlsson to help penetration testers enumerate Oracle SIDs by performing a dictionary attack against Oracle's TNS service. The script uses a list of common SID names to attempt to find valid ones. This script...