Heap

Pwn challenge at WaniCTF2021 Difficulty : Normal Github for src, file, solver, short solution Pwn challenge ‘diva’ at the same CTF requires heap overwrite to get arbitrary write access. I made this challenge to give hint for the diva. When I first learn about heap, what I needed was an environment to perform malloc, free and write freely on the heap and check how it changes. ( Since I couldn’t understand without real experiment ) ...

Pwn challenge at WaniCTF2021 Difficulty : Normal Github for src, file, solver, short solution Pwn challenge ‘diva’ at the same CTF requires heap overwrite to get arbitrary write access. I made this challenge to give hint for the diva. When I first learn about heap, what I needed was an environment to perform malloc, free and write freely on the heap and check how it changes. ( Since I couldn’t understand without real experiment ) ...