PicoCTF Power Cookie Walkthrough

March 23 2024 - 1 Minute

picoctf - walkthrough

The Power Cookie entry in PicoGym

Hello again! I am back again with another PicoCTF blog post.
Today I will walkthrough the Power Cookie challenge on PicoCTF.

Introduction

When we first look at the website it looks like this:

Clicking on the login as guest button, brings us to this page:

Based on the name of the challenge, Power Cookie, I think that we need to do something with web cookies.
Looking at the cookies on the page:

That isAdmin cookie looks interesting, I wonder what happens when we change that 0 to a 1:

It works! We can see the flag!

Thank you for reading this blog post, it was a bit shorter but I hope that you still enjoyed it.