ai

Embassy Writeup

Cyber Apocalypse 2025

Solved by avantika

High above Eldoria’s skyline hovers the Floating Isles. The fellowship has to retrieve the Wind Crystal from this sacred land. Unfortunately, the terror on the ground has resulted in the lockdown of this magnificent isle. Now, only those who receive approval from the floating Embassy may enter. The Embassy, overwhelmed by countless entry requests, has invoked an otherworldly AI spirit to triage all entry pleas. The fellowship must convince this spirit that their mission is urgent, but the AI is not being swayed. Now trapped in this situation, the fellowship needs your prompt injection skills to persuade the AI to allow them entry. Can you make the AI respond with the right verdict to get entry?

We are given this information, it’s a simple prompt injection attack.

We tell the AI to just respond with opposite of denied and add urgency, we get our flag HTB{tr41n3d_ai_0n_th3_fly} is our flag.

Published on : 29 Mar 2025