$ ctf42

#libc-2.27 CTF challenges

3 CTF challenges using libc-2.27 from 3 CTFs (2020–2021), 3 with writeups. Mostly Misc (67%) and Pwn (33%).

Misc · 2 Pwn · 1

Often combined with

#tcache 3 #heap 2 #c++-stl 1 #heap-exploitation 1 #use-after-free 1

Challenges

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Challenge CTF Weight Category Has
error_program
#heap#use-after-free (uaf)#tcache#libc-2.27
 Defenit 2020 23.88 Misc files wu 3
stl_container
#c++-stl#heap-exploitation#tcache#libc-2.27
 De1CTF 2020 24.28 Misc files wu 2
Warmup
#heap#tcache#libc-2.27
 darkCON 2021 24.06 Pwn files wu 1