ctf-writeup/CTF After Dark - Winter 2023/Cookie

Cookie

I have a trade offer for you. The challenge is at https://cookies.acmcyber.com

About the Challenge

We need to find the flag on the website we have been given. The website is just a plain website and there is a button to get the cookie

How to Solve?

I tried to click the get cookie! button and then there is a new cookie on HTTP request

And then in the one of the image said that I need to go to /flag endpoint to get the flag. But when I open that there is just a simple message

icky cookie

I stuck a little bit and decided to try changing the cookie value from 1 - 75 and luckily I got the flag

flag{c00k135_g0_brrr}