Nmap and Metasploit: A Comprehensive Analysis of Security Tools

This report provides a detailed analysis of two widely used security tools: Nmap and Metasploit. It covers their installation procedures, key features, and practical applications in network security assessments. The report explores the strengths and limitations of each tool, highlighting their effectiveness in various security scenarios. Through screenshots and examples, the report demonstrates the capabilities of Nmap for network mapping and port scanning, while showcasing Metasploit's power in penetration testing and exploit development. The analysis delves into the user-friendliness, scalability, performance, and availability of both tools, providing valuable insights for cybersecurity professionals and students.

Contents
Introduction......................................................................................................................................3
Security tools...................................................................................................................................4
Nmap............................................................................................................................................4
Overview..................................................................................................................................4
Installation and launching........................................................................................................4
Features....................................................................................................................................5
Analysis...................................................................................................................................5
Metasploit....................................................................................................................................9
Overview:................................................................................................................................9
Installation and launching........................................................................................................9
Features..................................................................................................................................10
Analysis.................................................................................................................................14
Conclusion:....................................................................................................................................19
References......................................................................................................................................20

List of figures
Figure 1 Nmap installation commands............................................................................................4
Figure 2 Nmap installation..............................................................................................................5
Figure 3 Nmap GUI 1......................................................................................................................6
Figure 4 Nmap GUI 2......................................................................................................................7
Figure 5 Metasploit installation.......................................................................................................9
Figure 6 Metasploit installation completion..................................................................................10
Figure 7 Show encoders.................................................................................................................11
Figure 8 Database backend help....................................................................................................12
Figure 9 Database backend............................................................................................................13
Figure 10 Metasploit working.......................................................................................................14
Figure 11 Metasploit Framework console.....................................................................................15
Figure 12 Show exploits command...............................................................................................15
Figure 13 Show auxiliary command..............................................................................................16
Figure 14 Show payload command...............................................................................................16
Figure 15 show options command.................................................................................................16
Figure 16 shows the advance option command.............................................................................17
Figure 17 Metasploit Pro GUI.......................................................................................................18
Figure 18 Report customization.....................................................................................................18

Introduction
The assignment is based on information technology security. This report is based on the analysis
of the tool that is being used in security. The selected tools for this report are Nmap and
Metasploit framework. The report has distinct sections. These sections will first cover the
demonstration of these tools along with the installation procedure in Linux. This is followed by
listing four features of each of these tools. Then net section will cover the analysis of the tool in
different aspects. To support the description and analysis screenshots will be used.

Security tools
Nmap
Overview
Nmap is a tool for network security. This tool is able to perform various security-related
activities major related to scanning. This is helpful for the administrators to find out the services
and hosts on the network in order to prepare a network map. This is an open-source and free tool.
This provides a scan for running services and open ports, operating systems, firewall, etc. Nmap
refers to network mapper [5].
Installation and launching
In order to use the Nmap tool for the Linux distribution, GUI is required to be installed.
Following commands can be used to install Nmap in Debian based systems
$sudo apt-get install nmap
$sudo apt-get install zenmap
$sudo apt-get upgrade
Following commands can be used for the systems based on Redhat
#yum install nmap
#yum install zenmap
#yum update [6]
Figure 1 Nmap installation commands

Figure 2 Nmap installation
Features
The features of the tools include:
1. Ping Scan: This is helpful in host discovery by detecting the online devices and computers
on the network with the help of ACK or SYN packet. Option –sP is used for this.
2. Detection of operating system and information of network: This feature is used to the get
information about the running service or a port that is open. This information also consists of
a version number and name of the product. Option –sV is used for the detection of version
and option –A supports fingerprinting of OS and detection of version.
3. Quick traceroute: Nmap is able to trace the path of hop to every host in the network also it
can perform ping scan in which scanning of a port is disabled.
--traceroute option is used for the tracing and –sN is used for ping scan.
4. Quick scan: The Nmap tool provides advance and quick scanning. This is able to detect the
version and service information of the open ports, also detect the OS. This faster scanning
scans less port. –O option is used for the operating system detection. – V option is used to
enable the verbosity. –p option is used to scan all the ports from 1 to 65535. The number and
range of ports can be modified according to the user requirement [4].
Analysis
Use: Nmap tool provides a user-friendly interface as the tool also has a Graphical user interface.
Also in command line, options are easy to remember like –O is for operating system, -p is for

ports, etc. The description of the options is easy to understand. It also gives sample examples to
understand the output of a specific command. The installation process of the tool is also easy.
User has to just enter or write the option along with the target IP or DNS name and it will give
the output.
Figure 3 Nmap GUI 1

Figure 4 Nmap GUI 2
Scalability: The tool is also scalable. It supports to define the number of scans as well as the
output of specific options as per the user requirement. For example
nmap <ip or DNS name> is used to scan a single host
nmap –p 1-65535 localhost is used to scan all the ports
nmap <IP address 1> <IP address 2> is used to scan multiple IP addresses
nmap --top ports 20 localhost are used to scan top 20 ports.
nmap –p 80,443 <IP address> is used to scan multiple ports in one go
Performance: This tool is able to provide effective services. As it provides various types of port
scanning in quicker manner. This supports quick scan which scans fewer ports in comparison to
default scan. The performance is quite efficient as it provides information about what is the
operating system, is firewall there or not, type of firewalls and various other features and
characteristics of the target system and network. –T4 option can be used for faster execution.
This is able to scan a large amount of IP addresses or a complete network within few seconds. It
works better with less amount of hosts or single hosts.
Availability: The tool is easily available as this is an open-source tool. Which means the source
code of the tool is easily accessible for public use. The tool is available in two versions that are

command line and graphical user interface. The tool is available in Kali Linux (inbuilt) and also
supports different version of LINUX and UNIX. It is also available for the Windows platform.
Analytics and reporting: Nmap tool allows the user to save the output of the scan in a file for
future reference. This allows saving the report in different formats. To save the output in normal
format use following command:
nmap 192.168.1.1 > result.txt
nmap –oX result.xml 192.168.1.1
As per the requirements, user can select from agreeable, XML or normal output. By using this
option output will be saved in an understandable and structured way. Also, this supports the –
help option which will provide an overview of the options supported in Nmap [1].

Metasploit
Overview:
This tool is helpful in penetration testing. The tool allows the user to test, write and execute the
code for exploit. The framework includes a set of tools which provide support for testing of
security-related vulnerabilities, enumeration of networks, execution of attacks and detection of
evading. Thus, it supports development of exploits as well as pen-testing.
Installation and launching
To install the Metasploit framework on the Linux system following commands are used:
$ wget http://downloads.metasploit.com/datrelaeses/metasploit -latest-Linux-installer.run
After this, use the following command to change the permissions of the file
chmod +x /path/to/Metasploit-latest-Linux-x64-installer.run
Following command is used for the launching of the installer
sudo /path/to/metasploit-latest-linux-x64-installer.run
Below screenshot shows the installer. Accept the agreement to use the tool [2].
Figure 5 Metasploit installation

Figure 6 Metasploit installation completion
Features
The capture of screen: The ability of the Metasploit tool includes capturing the desktop of the
victim and also allows saving the output on the system. In order to do this access is required to
the victim’s desktop.
Searching exploits and information: The tool provides support for searching. For example this
allows the user to determine the Microsoft related exploits. The command named “info” offer
information about platform or module. This information includes a reference to vulnerability,
author and restriction of payload. It is also able to display the encoders with the help of show
encoders command.

Figure 7 Show encoders
Supports database backend: This tool provides different options for the penetration testing of
database. For example, it is able to list all the credentials of the database, list all the hosts, notes,
services and vulnerabilities of the database. It also shows the status of the database etc.

Figure 8 Database backend help

Figure 9 Database backend
Automation: A thorough pen testing requires a lot of time and skills for effective outcomes. The
Metasploit tool automates the pen testing phases. The tool itself select right exploit for the
collection of proofs and pieces of evidence [3].

Figure 10 Metasploit working
Analysis
Use: Metasploit tool helps the user to automate the penetration testing phases. This automatically
chooses the exploits for collection of evidence. This is helpful in time-saving. MSF console is

the command-line interface of this tool. This allows the user to scan the targets, collection of data
and exploitation of vulnerabilities. This saves time by eliminating the process of code
rebuilding. With the help of show <option> command, user can view payloads, exploits and
other options easily. This tool also supports different shortcuts of keyboard to make the operating
process easy. For example, F3 button can be used to open or close the help icon.
Figure 11 Metasploit Framework console
Figure 12 Show exploits command

Figure 13 Show auxiliary command
Figure 14 Show payload command
Figure 15 show options command
Scalability: The output of Metasploit commands includes a limited set of information. Thus, the
software is not scalable as Nmap. Although, this allows creating customized tools for security.

Performance: The tool creates various attacks in order to test the weakness of user. It involves
website cloning, masking of files that are malicious, etc. Metasploit framework is used primarily
with command-line interface. The Graphical user interface does not provide access to the
complete set of tools. The Metasploit framework provides over 200 payloads and around 600
exploits. The Metasploit framework also supports advanced options for the exploits.
Figure 16 shows the advance option command
Availability: Framework of powerful Metasploit is accessible and available to all with the
support of Metasploit pro. The interface is easy to use. The penetration testing options are able to
launch by user in seconds. This is also an open-source tool and available for free. This gives
access to the latest code for exploit that is applicable to different apps, platforms, and OS. The
tool is able to serve all the time, all it needs is internet connection. This also has commercial
version of tool that is supported in Linux, OSX, and Microsoft. The commercial version of the
Metasploit tool is available to the people who use web-based interface primarily for the process
of penetration testing. These commercial versions of the tool give features that are not supported
in the Metasploit framework.

Figure 17 Metasploit Pro GUI
Reporting and analytics: Like Nmap tool, Metasploit also allows to store the outcome of the
command in a file for future reference. Spool command is used to save the Metasploit output into
a file. Metasploit also provides support for customization of the standard report like sections. By
default all the sections are selected and user can exclude some sections if not required. User can
also remove graphs and charts from the report. Also help command is supported to provide a
description of the options [7].
Figure 18 Report customization

Conclusion:
The report was based on the analysis of two security tools that are Metasploit and Nmap. Nmap
is a tool for network security. This tool is able to perform various security-related activities
major related to scanning. Features of Nmap of the Nmap tool include ping scan, system
information, quick scan, etc. Whereas, Metasploit tool allows the user to test, write and execute
the code for exploit. The framework includes a set of tools which provide support for testing of
security-related vulnerabilities. The features of Metasploit include screen capturing, information
gathering, listing of payload, etc.

References
[1]T. Shrivastava, "29 Practical Examples of NMAP Commands for Linux System/Network
Administrators", Tecmint.com, 2013. [Online]. Available: https://www.tecmint.com/nmap-
command-examples/. [Accessed: 09- Sep- 2019].
[2]"Installing Metasploit on Linux", Subscription.packtpub.com, 2019. [Online]. Available:
https://subscription.packtpub.com/book/networking_and_servers/9781788295970/2/
ch02lvl1sec21/installing-metasploit-on-linux. [Accessed: 09- Sep- 2019].
[3]"Metasploit: Pen Testing Tool Features", Rapid7, 2019. [Online]. Available:
https://www.rapid7.com/products/metasploit/features/. [Accessed: 09- Sep- 2019].
[4]P. Rubens, "5 Key New Features in Nmap Network Security Tool", esecurityplanet, 2015.
[Online]. Available: https://www.esecurityplanet.com/network-security/5-key-new-features-in-
nmap-network-security-tool.html. [Accessed: 09- Sep- 2019].
[5]"Nmap : Basic overview on Scanning Techniques", Jaacostan.com, 2018. [Online].
Available: https://www.jaacostan.com/2018/04/nmap-basic-overview-on-scanning.html.
[Accessed: 09- Sep- 2019].
[6]J. B, "NMAP Installation", Linux.org, 2017. [Online]. Available:
https://www.linux.org/threads/nmap-installation.4473/. [Accessed: 09- Sep- 2019].
[7]R. Chandel, "Generating Scan Reports Using Nmap (Output Scan)", Hacking Articles, 2018.
[Online]. Available: https://www.hackingarticles.in/generating-scan-reports-using-nmap-output-
scan/. [Accessed: 09- Sep- 2019].
[8]"About Reports", Metasploit.help.rapid7.com, 2019. [Online]. Available:
https://metasploit.help.rapid7.com/docs/about-reports. [Accessed: 09- Sep- 2019].