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Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
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1001 challenges · browse all techniques

Challenge CTF Weight Category Has
porcosort
#off-by-one-stack-overflow
 LakeCTF 2022 Quals 23.96 Pwn files wu 1
atelier LINE 2021 – Pwn files wu 1
catastrophe TSG 2021 – Pwn files wu 1
chat TSG 2021 – Pwn files wu 1
cheap TSG 2021 – Pwn files wu 2
cling TSG 2021 – Pwn files wu 1
lumberjack_against_nature TSG 2021 – Misc files wu 1
lumberjack_in_nature TSG 2021 – Misc files wu 1
this_is_dsa TSG 2021 – Crypto files wu 3
udon TSG 2021 – Web files wu 2
welcome_to_tsgctf TSG 2021 – Web files wu 1
CrackSSH
#rsa#weak-ssh-key
 TsukuCTF 2021 – Crypto files wu 1
il TokyoWesterns 2020 – Misc files wu 1
BabyROP
#rop
 Harekaze 2019 23.87 Misc files wu 3
BabyROP2
#one-gadget
 Harekaze 2019 23.87 Misc files wu 3
HarekazeNote
#double-free
 Harekaze 2019 23.87 Misc files wu 1
Ramen
#tcache-poisoning
 Harekaze 2019 23.87 Misc files wu 1
Odd_Multiplier TSG 2019 – Misc files wu 1
Super_Smash_Bros TSG 2019 – Misc files wu 1
Asterisk-Alloc TokyoWesterns 2019 – Misc files wu 2
Multi_Heap TokyoWesterns 2019 – Misc files wu 2
gnote TokyoWesterns 2019 – Misc files wu 2
mi TokyoWesterns 2019 – Misc files wu 2
printf TokyoWesterns 2019 – Misc files wu 3
secret_message SECCON 2018 Quals 36.92 Misc files wu 1
BBQ TokyoWesterns 2018 – Misc files wu 1
EscapeMe TokyoWesterns 2018 – Misc files wu 1
ReadableKernelModule TokyoWesterns 2018 – Misc files wu 1
online_candy_store SECCON 2017 Quals 30.00 Misc files wu 1
printf_machine SECCON 2017 Quals 30.00 Misc files wu 3
1_0_7 CPCTF 2026 – Crypto files
Anomaly_2 CPCTF 2026 – Crypto files
Authorized_Whale CPCTF 2026 – Forensics files
Bitwise_Scrumble CPCTF 2026 – Crypto files
Buffer_Visualizer CPCTF 2026 – Pwn files
CPCTF_Market CPCTF 2026 – Web files
CPCTF_jail CPCTF 2026 – Misc files
Con CPCTF 2026 – Pwn files
Damaged_Report CPCTF 2026 – Misc files
Dualcast CPCTF 2026 – Crypto files