The challenges are down, unfortunately, so I can’t provide a screenshot of the challenge. It said something along the lines of:
You know the answer to this. Seriously, if you can read this, you already know the flag!
This is a total misnomer, imo. I spent an hour trying to guess the answer to this, including but not limited to:
- OOO{the flag}
- OOO{You Already Know}
- OOO{you_already_know}
- OOO{I fucking hate you guys}
- OOO{why do I even try}
Eventually, I gave up and went into Inspect on Chrome and started looking through everything.
Turns out the flag is under the Network tab in the request that gets made when you open the challenge menu.
The request fetches the text that appears in the challenge menu from their server, including the flag.
OOO{Sometimes, the answer is just staring you in the face. We have all been there}
And no, I did not already know that.
Only slightly bitter.