Jott

Challenge Description

Jott is the new hottness of productivity applications! Collaborate in real time, share notes, take notes, or don't take notes! We're not your manager. We're not even a real company!

Go ahead and pentest the application and jott down whatever you find.

We'd like you to do a pretty thorough job, so we've outfitted you with a dev instane of the app. Please use these user level credentials to log in and perform an aunthenticated test.

Username- john_doe Password - password123

We also gave you the dev-build of the app in the src directory for reference.

Attachments

• src.zip

Solution

• Logging in with the credentials given

• Going through app.py, we find a SECRET_KEY

• Grabbing the jwt token from the cookie

• Decode the jwt token using jwt.io

• Editing the jwt token by changing the role from user to admin and encoding it with the secret found in app.py

• Replacing the jwt token in the cookie and refreshing the page, we get the flag

FLAG

flag{c7cc7fa86330cff2c09cea0055289b7e}