Csaw Misc Russian Jet Tracking Last Friday night, the little me who aspired to be like those hackers in movies finally had her dreams come true. Or, girl tracks Russian planes.
Kitctfctf Misc Grep it? CodeQL it! CodeQL: a surprisingly handy tool! Just need to read the instructions more carefully next time…
Xmas Misc Blocker, Cookie Market, & Bread Bank Blockchain: a new way to program… and a new way to write vulnerable code.
Buckeyectf Misc nile & andes Despite having worked in smart contract security, I have never actually performed an attack before – until now. Let’s take a look at some not-so-smart contracts, shall we?
Bluehensctf Misc Rick and Morty - One Time Pad - Esoteric Languages Memes as an internet subculture, World War era encryption schemes, and program states as stacks of dynamically sized integers, oh my! How do they all connect?
Bluehensctf Misc Wordles with Dads Another variation of Wordle, just like my previous writeup on Vocaloid Heardle.
Sekaictf Misc Sus Someone sent this file to me, claiming he got it from a SEKAI where the palette is not colorful but purple. I had no idea what he was talking about – I only
Bluehensctf Misc CryptoDuck! Digital circuits and Python: low-level meets high-level in the solution to this oddball of a challenge.
Sekaictf Misc Vocaloid Heardle Well, it’s just too usual to hide a flag in stegano, database, cipher, or server. What if we decide to sing it out instead?
Sekaictf Misc Matryoshka ANSI escape codes. Race conditions in PNG parsing. Digital COVID-19 vaccination records. De-noising audio files and the NATO phonetic alphabet. The only thing linking all of them? A race to solve a CTF
