picoCTF 2023

CTF > PicoCTF > picoCTF 2023

pwn - babygame02

Break the game and get the flag.

Vulnerability: stack buffer overflow

stack-buffer-overflow return-address-overwrite
December 22, 2025 • October 12, 2025 • Hard
CTF > PicoCTF > picoCTF 2023

pwn - Horsetrack

I'm starting to write a game about horse racing, would you mind testing it out? Maybe you can find some...

Vulnerability: use after free - dangling pointer

tcache-poisoning heap-exploitation got-overwrite use-after-free
December 22, 2025 • October 9, 2025 • Hard
CTF > PicoCTF > picoCTF 2023

pwn - tic-tac

Someone created a program to read text files; we think the program reads files with root privileges but apparently it...

Vulnerability: toc-tou race condition

race-condition toc-tou privilege-escalation
December 22, 2025 • October 9, 2025 • Hard
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