CTF Challenge - 18739D (Fall 2024)

Built by Nishant Puri (nishantp)

This CTF Challenge was built as part of Prof. David Brumley's Hacking and Offensive Security Course (18-739D) at Carnegie Mellon University. These are medium-level challenges and focus on some interesting concepts.

Challenge 1: Panic! at the Gob Decoder

• In this challenge, the player learns about CVE-2024-34156 where the cause a Go Server to Panic!
• As per the CVE, a deeply nested input can cause the server to Panic. This concept is recreated in this challenge where the user-caused panic reveals a key detail about the next steps
• The challenge also involves the use of a Vigenere Cipher that the player needs to cleverly guess based on the image that is revealed.