$ ctf42

Challenges

Category
Difficulty
CTFtime weight
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Higher weight ≈ harder, more prestigious event.
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39 challenges · browse all techniques

Challenge CTF Weight Category Has
Decompressor
#huffman-coding#compression-reconstruction
 BackdoorCTF 2024 – Misc files wu 1
Beginner_menace
#exif-metadata
 BackdoorCTF 2023 – Misc files wu 2
Something_in_Common
#rsa#hastad-broadcast-attack#non-coprime-moduli#crt
 BackdoorCTF 2023 – Misc files wu 2
Baby_Tcache
#tcache-poisoning#free-hook-overwrite#libc-leak
 BackdoorCTF 2019 56.00 Misc files wu 1
MiscPwn
#realloc-hook-malloc-hook-overwrite#one-gadget
 BackdoorCTF 2019 56.00 Misc files wu 1
Baby_Heap BackdoorCTF 2019 56.00 Misc files wu 2
404_Friend_Not_Found BackdoorCTF 2025 – Misc files
Mizuhashi_Simple_Domain BackdoorCTF 2025 – Misc files
Title_Decider BackdoorCTF 2025 – Misc files
Multi_Image BackdoorCTF 2024 – Misc files
Cheat_Code BackdoorCTF 2023 – Misc files
Escape_The_Room BackdoorCTF 2023 – Misc files
Fruit_Basket BackdoorCTF 2023 – Misc files
Headache BackdoorCTF 2023 – Misc files
Indecipherable_image_or_is_itq BackdoorCTF 2023 – Misc files
Marks BackdoorCTF 2023 – Misc files
Not_So_Guessy BackdoorCTF 2023 – Misc files
halo_jack_again BackdoorCTF 2023 – Misc files
mini_RSA BackdoorCTF 2023 – Misc files
mini_RSA_v2 BackdoorCTF 2023 – Misc files
secret_of_j4ck4l BackdoorCTF 2023 – Misc files
BabyROP BackdoorCTF 2019 56.00 Misc files
ECHO BackdoorCTF 2019 56.00 Misc files
EntertheMatrix BackdoorCTF 2019 56.00 Misc files
FUNSIGNALS BackdoorCTF 2019 56.00 Misc files
I-GOT-BEEF BackdoorCTF 2019 56.00 Misc files
PWN-EASY BackdoorCTF 2019 56.00 Misc files
Reallocator BackdoorCTF 2019 56.00 Misc files
SHELTER BackdoorCTF 2019 56.00 Misc files
TEAM BackdoorCTF 2019 56.00 Misc files src
Weekly1Challenge1 BackdoorCTF 2019 56.00 Misc files
Weekly1Challenge2 BackdoorCTF 2019 56.00 Misc files
Weekly1Challenge3 BackdoorCTF 2019 56.00 Misc files
Weekly1Challenge4 BackdoorCTF 2019 56.00 Misc files
Weekly3Challenge1 BackdoorCTF 2019 56.00 Misc files
Weekly3Challenge2 BackdoorCTF 2019 56.00 Misc files
Weekly3Challenge3 BackdoorCTF 2019 56.00 Misc files
Weekly3Challenge4 BackdoorCTF 2019 56.00 Misc files
bossfight BackdoorCTF 2019 56.00 Misc files