CTF challenges created by @_how2hack_
| Challenge Name | CTF | Category | Description |
|---|---|---|---|
| JPcode | Balsn CTF 2019 | Misc | Japanese Unicode Shellcode |
| Machbook | Balsn CTF 2019 | Pwn | OSX Heap Exploitation in Small Heap |
| EasierROP | EOF Final CTF 2020 | Pwn | ROP without leak + fork process debugging + dlsym |
| Unlucky | EOF Final CTF 2020 | Misc | Recover deleted file from opened fd |
| Lucky | EOF Final CTF 2020 | Crypto | Breaking Mersenne Twister with only 2 values |
| Machbook Air | Balsn CTF 2020 | Misc + Pwn | APFS Normalization |
| Machbook Pro | Balsn CTF 2020 | Pwn | OSX Tiny Heap Region Metadata Corruption (Double Free) |
| Machbooks | WCTF 2020 | Pwn | OSX Small Heap Region Metadata Corruption (Overlapped Chunk) + FILE structure exploitation |
| RRPS | HITCON x Balsn Final CTF 2020 | A&D | Predicting Mersenne Twister with partial states (Crypto) + House of Einherjar with null byte off-by-one (Pwn) |
| or⊕w | Balsn CTF 2021 | Pwn | Pwn both parent and child process with seccomp using one ROP chain (Leakless) |
| NoteEdit | Balsn CTF 2021 | Pwn | Play with OSX FILE |
| Flag Market | Balsn CTF 2022 | Pwn + Misc | SSRF + Server/Client Pwn |