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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
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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 2. Network Exploration FREE CHAPTER 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 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...

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