Monday, April 22, 2019

NMAP Fingerprinting with Examples

NMAP (Service Fingerprinting)

Try to fingerprint currently running services on host

nmap -sV target 
root@asus:~/unix% nmap -sV 192.168.0.25

Starting Nmap 7.01 ( https://nmap.org ) at 2019-04-20 11:19 MDT
Nmap scan report for fox.acme.com (192.168.0.25)
Host is up (0.000033s latency).
Not shown: 995 closed ports
PORT     STATE SERVICE VERSION
80/tcp   open  http    Apache httpd 2.4.18 ((Ubuntu))
389/tcp  open  ldap    OpenLDAP 2.2.X - 2.3.X
631/tcp  open  ipp     CUPS 2.1
3306/tcp open  mysql   MySQL 5.7.25-0ubuntu0.16.04.2
6667/tcp open  irc     InspIRCd
Service Info: Host: irc.local

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 11.73 seconds
root@asus:~/unix%

Specify how many probes (intensity) to send to host for fingerprinting

nmap -sV --version-intensity [0-9] target 
root@asus:~/unix% nmap -sV --version-intensity 5 192.168.0.25

Starting Nmap 7.01 ( https://nmap.org ) at 2019-04-20 11:22 MDT
Nmap scan report for fox.acme.com (192.168.0.25)
Host is up (0.000017s latency).
Not shown: 995 closed ports
PORT     STATE SERVICE VERSION
80/tcp   open  http    Apache httpd 2.4.18 ((Ubuntu))
389/tcp  open  ldap    OpenLDAP 2.2.X - 2.3.X
631/tcp  open  ipp     CUPS 2.1
3306/tcp open  mysql   MySQL 5.7.25-0ubuntu0.16.04.2
6667/tcp open  irc     InspIRCd
Service Info: Host: irc.local

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 11.49 seconds
root@asus:~/unix%

NMAP (OS Fingerprinting)

Try to guess remote hosts OS

nmap -O target 
root@asus:~/unix% nmap -O 192.168.0.25

Starting Nmap 7.01 ( https://nmap.org ) at 2019-04-20 11:28 MDT
Nmap scan report for fox.acme.com (192.168.0.25)
Host is up (0.000024s latency).
Not shown: 995 closed ports
PORT     STATE SERVICE
80/tcp   open  http
389/tcp  open  ldap
631/tcp  open  ipp
3306/tcp open  mysql
6667/tcp open  irc
Device type: general purpose
Running: Linux 3.X|4.X
OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4
OS details: Linux 3.7 - 3.10, Linux 3.8 - 4.0
Network Distance: 0 hops

OS detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 5.50 seconds
root@asus:~/unix%

Verbose for more information

The more ‘v’s you add the more verbose the output nmap produces

nmap -O -v target 
root@asus:~/unix% nmap -O -v 192.168.0.25

Starting Nmap 7.01 ( https://nmap.org ) at 2019-04-20 11:28 MDT
Initiating SYN Stealth Scan at 11:28
Scanning fox.acme.com (192.168.0.25) [1000 ports]
Discovered open port 3306/tcp on 192.168.0.25
Discovered open port 80/tcp on 192.168.0.25
Discovered open port 389/tcp on 192.168.0.25
Discovered open port 6667/tcp on 192.168.0.25
Discovered open port 631/tcp on 192.168.0.25
Completed SYN Stealth Scan at 11:28, 1.70s elapsed (1000 total ports)
Initiating OS detection (try #1) against fox.acme.com (192.168.0.25)
Nmap scan report for fox.acme.com (192.168.0.25)
Host is up (0.000038s latency).
Not shown: 995 closed ports
PORT     STATE SERVICE
80/tcp   open  http
389/tcp  open  ldap
631/tcp  open  ipp
3306/tcp open  mysql
6667/tcp open  irc
Device type: general purpose
Running: Linux 3.X|4.X
OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4
OS details: Linux 3.11 - 3.14, Linux 3.7 - 3.10, Linux 3.8 - 4.0
Uptime guess: 13.560 days (since Sat Apr  6 22:02:01 2019)
Network Distance: 0 hops
TCP Sequence Prediction: Difficulty=262 (Good luck!)
IP ID Sequence Generation: All zeros

Read data files from: /usr/bin/../share/nmap
OS detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 5.46 seconds
           Raw packets sent: 1116 (51.808KB) | Rcvd: 2241 (98.212KB)
root@asus:~/unix%

Aggressive scan

This is basically the same as ‘nmap -sV -O -sC --traceroute target’

nmap -A target 
root@asus:~/unix% nmap -A 192.168.0.25

Starting Nmap 7.01 ( https://nmap.org ) at 2019-04-20 11:30 MDT
Nmap scan report for fox.acme.com (192.168.0.25)
Host is up (0.000045s latency).
Not shown: 995 closed ports
PORT     STATE SERVICE VERSION
80/tcp   open  http    Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
|_http-title: Site doesn't have a title (text/html).
389/tcp  open  ldap    OpenLDAP 2.2.X - 2.3.X
631/tcp  open  ipp     CUPS 2.1
| http-methods: 
|_  Potentially risky methods: PUT
| http-robots.txt: 1 disallowed entry 
|_/
|_http-server-header: CUPS/2.1 IPP/2.1
|_http-title: Home - CUPS 2.1.3
3306/tcp open  mysql   MySQL 5.7.25-0ubuntu0.16.04.2
| mysql-info: 
|   Protocol: 53
|   Version: .7.25-0ubuntu0.16.04.2
|   Thread ID: 34
|   Capabilities flags: 63487
|   Some Capabilities: LongColumnFlag, Support41Auth, Speaks41ProtocolOld, SupportsLoadDataLocal, SupportsTransactions,
 DontAllowDatabaseTableColumn, Speaks41ProtocolNew, ODBCClient, IgnoreSigpipes, InteractiveClient, ConnectWithDatabase, 
FoundRows, LongPassword, IgnoreSpaceBeforeParenthesis, SupportsCompression
|   Status: Autocommit
|   Salt: tk :w%q8B\x08Sb
|_\x03l\x1E p\x05c
6667/tcp open  irc     InspIRCd
| irc-info: 
|   server: irc.local
|   users: 1
|   servers: 1
|   chans: 0
|   lusers: 1
|   lservers: 0
|   source ident: nmap
|   source host: 192.168.0.25
|_  error: Closing link: (nmap@192.168.0.25) [Client exited]
Device type: general purpose
Running: Linux 3.X|4.X
OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4
OS details: Linux 3.7 - 3.10, Linux 3.8 - 4.0
Network Distance: 0 hops
Service Info: Host: irc.local

OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 25.64 seconds
root@asus:~/unix%
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