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Cookie Monster Secret Recipe
PicoCTF Web Exploitation [Easy]Easy

Cookie Monster Secret Recipe

#tutorial

Challenge Description

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Solution and Analysis

First visit the website provided in the challenge description, you will see a page as shown

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Press CTRL+SHIFT+U to open developer tools, go to the application tab and view the cookie data as shown, you will get

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The secret_recipe cookie holds this value

cGljb0NURntjMDBrMWVfbTBuc3Rlcl9sMHZlc19jMDBraWVzXzk4RDA2MDNGfQ%3D%3D

Just decode this from base64 to get the flag, you can use any online tools such as CyberChef

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