#malloc-hook-overwrite CTF challenges
6 CTF challenges using malloc-hook-overwrite from 4 CTFs (2018–2020), 6 with writeups. Mostly Misc (50%) and Pwn (50%).
Often combined with
#heap 2 #double-free 2 #fastbin-dup 2 #tcache-poisoning 2 #fsop 1 #mmap-threshold-overwrite 1 #safe-linking 1 #tcache-dup 1 #libc-2.32 1 #overlapping-chunks 1 #off-by-one 1 #out-of-bounds-write 1 #heap-overlap 1 #one-gadget 1 #house-of-spirit 1
Challenges
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| Challenge | CTF | Weight | Category | Has |
|---|---|---|---|---|
| popping_caps | CSAW 2019 Quals | 43.00 | Misc | files wu 3 |
| how-to-heap | CyberSecurityRumble 2020 | 28.00 | Misc | files wu 2 |
| nullptr | ALLES 2020 | – | Misc | files wu 2 |
| plang | 0CTF 2019 Quals | – | Pwn | files wu 1 |
| BabyHeap | 0CTF 2018 Quals | – | Pwn | files wu 1 |
| freenote2018 | 0CTF 2018 Finals | – | Pwn | files wu 1 |