Book Image

Nmap 6: Network Exploration and Security Auditing Cookbook

Book Image

Nmap 6: Network Exploration and Security Auditing Cookbook

Overview of this book

Nmap is a well known security tool used by penetration testers and system administrators. The Nmap Scripting Engine (NSE) has added the possibility to perform additional tasks using the collected host information. Tasks like advanced fingerprinting and service discovery, information gathering, and detection of security vulnerabilities."Nmap 6: Network exploration and security auditing cookbook" will help you master Nmap and its scripting engine. You will learn how to use this tool to do a wide variety of practical tasks for pentesting and network monitoring. Finally, after harvesting the power of NSE, you will also learn how to write your own NSE scripts."Nmap 6: Network exploration and security auditing cookbook" is a book full of practical knowledge for every security consultant, administrator or enthusiast looking to master Nmap. The book overviews the most important port scanning and host discovery techniques supported by Nmap. You will learn how to detect mis-configurations in web, mail and database servers and also how to implement your own monitoring system. The book also covers tasks for reporting, scanning numerous hosts, vulnerability detection and exploitation, and its strongest aspect; information gathering.
Table of Contents (18 chapters)
Nmap 6: Network Exploration and Security Auditing Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
References
Index

Retrieving the capabilities of an IMAP mail 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 by using 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  open     ssl/imap Dovecot imapd 
|_imap-capabilities: LOGIN-REFERRALS completed AUTH=PLAIN OK Capability UNSELECT THREAD=REFERENCES AUTH=LOGINA0001 IMAP4rev1 NAMESPACE SORT CHILDREN LITERAL+ IDLE SASL-IR MULTIAPPEND 

How it works...

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

The argument -p143,993 --script imap-capabilities...