Brute Force Attack to Crack Website Admin Passwor

by **Admin** Tue Dec 24, 2013 4:40 am

What is Brute Force Attack ?

A password attack that continue to try different passwords. For example, a brute-force attack may have a dictionary of all words or a listing of commonly used passwords. To gain access to an account using a brute-force attack, a program tries all available words it has to gain access to the account. Brute force attack is commonly used to gain access to Software/Program or any Web Content, Server, Account etc.

Requirements :

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Backtrack or Kali Linux
Brain

Brute Force attack Tutorial :
First of all : This is completely for Educational Purpose only, as you know that we're Ethical Hackers - we always use Penetration testing lab, to learn, Exploit, Create, Teach & Research.

1. I'm using DVWA Pen-test lab for tutorial : Suppose m user at DVWA website with the username as gordonb & Password : abc123 - & my task is to hack website admin password. & Here we go...!

2. Cool! Now Download Tamper Data Ad-don for Firefox [You must be registered and logged in to see this link.] & Start Tamper Data.

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3. Now back to Login page of DVWA & Login Username as gordonb & Password : abc123

4. Now you'll get pop-up from tamper just uncheck [Continue Tampering] Option & Click on Submit : Click on below Image to Enlarge it.

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5. After submitting you'll be in your account, so now check Tamper Data click on [First Result] & copy POSTDATA value : Check below Image :

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6. So, now we got Login Commands, Copy that POSTDATA & Save it in Notepad. & Logout - now come back again on login page and Enter Login Username : admin & Password : anything - so simply you'll not get entry into Admin account, so let's use some evil minds.

7. After entering wrong Username & Password you'll get an error message Login Failed copy that text and save it into Notepad with previous POSTDATA text.

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8. It's time to Brute Force Attack & Enter's into Admin account. Finally Start Backtrack or Kali Linux. I'm using Backtrack 5

9. Start Terminal & type mkdir pentest/passwords/cwf and hit Enter.

10. Now download this small file Called[You must be registered and logged in to see this link.]. and copy that complete file into root/pentest/password/cwf.

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11. Again back to Terminal & type : cd /pentest/passwords/cwf Hit Enter. & ls -l again Hit Enter, Now Uncompress file by this command : tar xovfz cwf.tar.gz & Last Command : chmod 700 crack_web_form.pl.

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12. If you want to know more Information about this Cracking Application you can type ./crack_web_form.pl -help.

13. Okay, let's setup some text and Attack. - Copy below command & Enter into Same terminal & Hit Enter : [Change Green Text with your DVWA IP]

./crack_web_form.pl -U admin -http "http://192.168.32.128/dvwa/login.php" -data "username=USERNAME&password=PASSWORD&Login=Login" -M "Failed Login"

14. Hit Enter & it will start Brute Force Attack : wait for some minutes and check out result, & if you'll be lucky you'll get Successful message.

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15. Brute Force Attack [Success]

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