$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
Reset

393 challenges · browse all techniques

Challenge CTF Weight Category Has
LaplandBeacon X-MAS 2022 – Pwn files
NaughtyList X-MAS 2022 – Pwn files
Presents X-MAS 2022 – Reverse files
SecureCommunications X-MAS 2022 – Crypto files
StrangeCircles X-MAS 2022 – Crypto files
TheCarolCorruptor X-MAS 2022 – Crypto files
AM_I_DOING_IT_RIGHT TFC 2021 – Crypto files
AN_ARM_AND_A_LEG TFC 2021 – Reverse files
CRACKITY TFC 2021 – Reverse files
HEAPS_DONT_LIE TFC 2021 – Pwn files
KH5YHLZVJP TFC 2021 – Crypto files
PIXEL_ART TFC 2021 – Pwn files
8-Bit_Picasso X-MAS 2021 – Reverse files
Ahoy X-MAS 2021 – Reverse files
Champion_gene X-MAS 2021 – Reverse files
DNA_Hack X-MAS 2021 – Pwn files
Gnome_Oriented_Programming X-MAS 2021 – Crypto files
How_the_Grinch_stole_the_cryptographic_key X-MAS 2021 – Crypto files
Intensive_training X-MAS 2021 – Reverse files
Lapland_Crackme X-MAS 2021 – Reverse files
One_Time_Present X-MAS 2021 – Crypto files
Santas_Secret_Encoding_Machine X-MAS 2021 – Crypto files
Santas_Tobacco_Shop X-MAS 2021 – Pwn files
Snake_ransomware X-MAS 2021 – Reverse files
Still_Two_Bad_Reindeer X-MAS 2021 – Crypto files
Super_insecure_licensing_system X-MAS 2021 – Reverse files
The_grinch X-MAS 2021 – Reverse files
TinyVM X-MAS 2021 – Reverse files
Waking_up_in_the_Matrix X-MAS 2021 – Reverse files
WeX X-MAS 2021 – Pwn files
Worst_two_reindeer X-MAS 2021 – Crypto files
elfsecretary X-MAS 2021 – Pwn files
imagehub X-MAS 2021 – Web files
initialkrampus X-MAS 2021 – Pwn files
quotehub X-MAS 2021 – Web files
baby-fmt Defcamp 2020 – Misc files
baby-heap Defcamp 2020 – Misc files
baby-rop Defcamp 2020 – Misc files
merry-cemetery Defcamp 2020 – Misc files
notafuzz Defcamp 2020 – Misc files