Ethical Hacking Institute Course in Pune-India
Extreme Hacking | Sadik Shaikh | Cyber Suraksha Abhiyan

 

The Exploit Database is the ultimate archive of public exploits and corresponding vulnerable software, developed for use by penetration testers and vulnerability researchers. Its aim is to serve as the most comprehensive collection of exploits gathered through direct submissions, mailing lists, and other public sources, and present them in a freely-available and easy-to-navigate database. The Exploit Database is a repository for exploits and proof-of-concepts rather than advisories, making it a valuable resource for those who need actionable data right away. (offensive security)

Disclaimer – Our tutorials are designed to aid aspiring pen testers/security enthusiasts in learning new skills, we only recommend that you test this tutorial on a system that belongs to YOU. We do not accept responsibility for anyone who thinks it’s a good idea to try to use this to attempt to hack systems that do not belong to you

what exploit db really is, is nothing more than a database where the pentestors who write an exploit for a vulnerability upload the source code of the exploit of other pentestors too see. It is maintained by Offensive Security (the force behind Backtrack, Kali, Metasploit Unleashed). The exploit-db.com site itself is pretty easy to navigate, and you can find all sorts of exploits there. Just finding an exploit, however, is not enough, as you need to add it to Metasploit in order to use it.

Adobe Flash Player Shader Buffer Overflow

 

This module exploits a buffer overflow vulnerability in Adobe Flash Player. The vulnerability occurs in the flash.Display.Shader class, when setting specially crafted data as its bytecode, as exploited in the wild in April 2014. This module has been tested successfully on IE 6 to IE 11 with Flash 11, Flash 12 and Flash 13 over Windows XP SP3, Windows 7 SP1 and Windows 8. (rapid7)

Now the site suggest that the exploit can be found here.

exploit/windows/browser/adobe_flash_pixel_bender_bof

But using the command

use exploit/windows/browser/adobe_flash_pixel_bender_bof

shows that the exploit is not in Metasploit yet (chances are good it’s there if you update metasploit regularly or if you are reading this tutorial a long time after it was written. Either ways, the method will not differ even if the exploit is already there, so don’t worry. Also you can use a different exploit as per your liking, and just replace the name wherever you see it being used in commands)

Now, there are two alternates. First, update the metasploit framework using

msfupdate

This will update the framework with new modules.

The second alternate the to download the exploit from exploit-db, then put it in the ~/.msf4/modules/exploit/<your_folder> directory. Any exploit put here will be detected my Metasploit when it starts. It will show up when you type use /exploit/your_folder/exploit_name. An important point here is while the <your_folder is arbitrary  and can be set to any value, it is recommended to use a proper directory structure. For example, this exploit should be placed in~/.msf4/modules/exploit/windows/browser/ directory .Also, it is mandatory to place exploits in a subdirectory of ~/.msf4/modules/exploit/ or you won’t be able to use it. For newbies in Linux, here is a detailed step by step guide.

Get the exploit

For examples sake, we’ll use the adobe shader exploit from http://www.exploit-db.com/exploits/33333/ Click on the Save icon to download the exploit. Save it on you Kali Desktop.
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.msf4 directory method

Now if you are not well versed with linux, you will need help with creating the directory and placing files there. Although I’m guiding you how to do it, you should be proficient in linux usage and should be able to do the basic stuff like this atleast. So, you can either use the command to line create the directories or do it using the GUI.

Command line method

First, say hi to mkdir

mkdir –help
Usage: mkdir [OPTION]… DIRECTORY…
Create the DIRECTORY(ies), if they do not already exist.

Mandatory arguments to long options are mandatory for short options too.
-m, –mode=MODE   set file mode (as in chmod), not a=rwx – umask
-p, –parents     no error if existing, make parent directories as needed
-v, –verbose     print a message for each created directory
-Z, –context=CTX  set the SELinux security context of each created
directory to CTX
–help     display this help and exit
–version  output version information and exit

First we’ll move to the already existent directory using (you need to be in root directory for this to work. Type just cd if unsure, it will automatically take you to root directory)root@kali:~# cd .msf4/modules/    
To see what the directory has, execute ls. It will return nothing as the directory is empty.

root@kali:~/.msf4/modules# ls
Now we’ll use mkdir to create what we need.
root@kali:~/.msf4/modules# mkdir exploits
root@kali:~/.msf4/modules# cd exploits
root@kali:~/.msf4/modules/exploits# mkdir windows        
root@kali:~/.msf4/modules/exploits# cd windows
root@kali:~/.msf4/modules/exploits/windows# mkdir browser
root@kali:~/.msf4/modules/exploits/windows# cp      
If you read the mkdir help thing, you might have noticed the -p option. It makes everything much easier. Everything above can be achieved with something as simple as
root@kali:~# mkdir -p ~/.msf4/modules/exploits/windows/browser
Now meet cp
root@kali:~/.msf4/modules/exploits/windows# cp –help
Usage: cp [OPTION]… [-T] SOURCE DEST
  or:  cp [OPTION]… SOURCE… DIRECTORY
  or:  cp [OPTION]… -t DIRECTORY SOURCE…
Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.
Assume you have adobe_flash_pixel_bender_bof.rb file on your desktop. Then use the following commands.
root@kali:~/Desktop# cp adobe_flash_pixel_bender_bof.rb ~/.msf4/modules/exploits/windows
root@kali:~# ls 
Desktop  app.apk
root@kali:~# cd Desktop
root@kali:~/Desktop# cp adobe_flash_pixel_bender_bof.rb ~/.msf4/modules/exploits/windows/browser
Now check for yourself
root@kali:~# cd ~/.msf4/modules/exploits/windows/browser
root@kali:~/.msf4/modules/exploits/windows/browser# ls
adobe_flash_pixel_bender_bof.rb

GUI Method

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Go to computer -> Filesystem->Home. Now you won’t see .msf4 there, because the . prefix is for hidden files. So go to view and select show hidden items. Now it will be visible.

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Now the rest is going to be a piece of cake. Copy the exploit from desktop, and create the directories by using the easy peasy right click -> New folder method. After that just paste the file where it needs to be. You’ll be done. Now start msfconsole again or type reload_all to reload the module. This will add the module to metasploit and you can use it as you normally would.

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