i was a author for 1ng3neerCTF 2025 edition, i made 3 reverse challs, and here is the writeup for them.i mainly do pwn so you can see some hints of pwn in those challs hehe, but still they are reversable.

This is a fmt challenge using the scanf function. i didnt find any scanf with a fmt when i looked online for resources so this is quite an interesting challenge.

as the name suggests, this is a ez printf chall so i wont wast your time with it. chall has two printf(user_input), and a win function.so leak the stack and pie with the first one, overwrite return address of main with win and thats it :)