$ ctf42

#libc-leak CTF challenges

9 CTF challenges using libc-leak from 8 CTFs (2017–2023), 9 with writeups. Mostly Misc (56%) and Pwn (44%).

Misc · 5 Pwn · 4

Often combined with

#free-hook-overwrite 2 #heap-overflow 2 #format-string 2 #tcache-poisoning 1 #glibc-2.31 1 #calloc-mmap-bit-leak 1 #fsop 1 #file-struct-exploit 1 #got-overwrite 1 #ret2libc 1 #rop 1 #stack-canary-bypass 1 #one-gadget 1 #stack-pivot 1 #c++ 1

Challenges

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Challenge CTF Weight Category Has
auir CSAW 2017 Quals 24.61 Misc files src wu 3
Precise_average ASIS 2019 Quals 61.07 Misc files wu 2
Baby_Tcache BackdoorCTF 2019 56.00 Misc files wu 1
ret2libc PBjar 2021 23.18 Pwn files wu 1
death_note Securinets 2021 Quals 41.71 Pwn files wu 1
notes CSCML 2020 – Misc files wu 1
fmtstr PBjar 2021 23.18 Pwn files wu 1
system_leak Defcamp 2023 Quals – Pwn files wu 1
butterfly DarkCTF 2020 23.71 Misc files wu 1