knightctf (20 Janurary 2023)

Description

This was a was the first CTF that iasg as club particpated in during the Spring 2023 semester. This was also the first CTF that I particpated in that I only had an M1 MacBook running MacOS in, which was an interesting self-inflicted challenge at times.

Forensics

• H3LLO IOS - This challenge required finding a flag in an iOS update package.

Reverse Engineering

• Fan - Learning that python assembly does indeed exist, and learning how to turn that back into code.

Crypto

• Xorathrust - A simple xor challenge that needs reversed to get the flag.
• Vaulter - A custom made crypto that used interesting methods.
• Encode Mania - 12 time randomly encoded flag, not a fun thing if I wanted to try this by hand.

Web

• GET Me - It lied, I couldn’t just GET the flag…

Misc

• Dirt - All credit to MacOS unzip tool for listing directories as it unzipped.