Start the machine, hack the system, and find the hidden flags to complete this challenge and earn points!
The challenge presents a login form with client-side MD5 validation. The password is a common password that exists in MD5 rainbow tables.
Open the challenge page in your web browser. You'll see a login form with username and password fields.
Right-click on the page and select "Inspect" or press F12 to open the browser's Developer Tools. Navigate to the "Console" tab or look at the "Sources" tab to find the JavaScript code.
In the JavaScript code, you'll find several important elements:
const storedHash = "5416d7cd6ef195a0f7622a9c56b55e84"
The validation works as follows:
Since the password exists in common MD5 rainbow tables, you can use several methods:
Use an online MD5 reverse lookup tool:
5416d7cd6ef195a0f7622a9c56b55e84
If you have hashcat installed:
hashcat -m 0 -a 0 5416d7cd6ef195a0f7622a9c56b55e84 /path/to/wordlist.txt
You can write a simple Python script to test common passwords:
import hashlib
target_hash = "5416d7cd6ef195a0f7622a9c56b55e84"
common_passwords = ["password", "123456", "admin", "1q2w3e4r", "qwerty"]
for password in common_passwords:
md5_hash = hashlib.md5(password.encode()).hexdigest()
if md5_hash == target_hash:
print(f"Found password: {password}")
break
You can also test passwords directly in the browser console:
md5("password")
md5("123456")
md5("1q2w3e4r")
The correct password is: 1q2w3e4r
To verify the solution:
If the above methods don't work, you can also:
john --format=raw-md5 --wordlist=/path/to/wordlist.txt hash.txt
This challenge demonstrates several security issues:
Sign-in to your account to access your hacking courses and cyber security labs.
Access all hacking courses and cyber security labs.