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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
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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

Retrieving the capabilities of an IMAP server


IMAP servers may support different capabilities. There is a command named Capability that allows clients to list these supported mail server capabilities, and we can use Nmap to automate this task.

This recipe shows you how to list the capabilities of an IMAP server with Nmap.

How to do it...

Open your favorite terminal and enter the following nmap command:

$ nmap -p143,993 --script imap-capabilities <target>

The results will be included under the script output section:

   993/tcp  openssl/imap Dovecot imapd 
   |_imap-capabilities: LOGIN-REFERRALS completed AUTH=PLAIN OK     
   Capability UNSELECT THREAD=REFERENCES AUTH=LOGINA0001IMAP4rev1    
   NAMESPACE SORT CHILDREN LITERAL+ IDLE SASL-IRMULTIAPPEND

How it works...

The imap-capabilities script was submitted by Brandon Enright, and it attempts to list the supported functionality of IMAP servers using the Capability  command defined in the RFC 3501.

The argument NSE script -p143,993 --script...

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