operational cipher vault

Operation Cipher Vault,
100
Welcome to "Operation Cipher Vault," an immersive CTF challenge inspired by the world of secret service operations. You have been recruited
as an elite agent to infiltrate a highly secure facility known as the Cipher Vault. Your mission is to obtain a confidential flag hidden deep
within the vault's mainframe. The vault's security relies on a password input field that triggers an error on improper password length. Your task
is to exploit this vulnerability, crack the password, and retrieve the top-secret flag to complete your mission.

https://m0wn1ka.github.io/m0wn1ka/bsidesctf.html