Our challenges are primarily aimed for entry level participants of CTF to polish their CTF knowledge. We will deliver more hardcore challenges in coming CTFs once you ready :).
Ok, let start the writeup for your ref.
Pwn02: Find me!
Solution:
Yea, it was inspecting your UID for grant.
You needed to find correct UID or bypass it. We will use
bypass method.
Run it in debugger.
Damn, checkpoint is there.
Let set a breakpoint, and change EAX value to become UID
1256 ( 0x4e8 ).
Granted ! :)
Enjoy guys !