$ ctf42

Challenges

Category
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Higher weight ≈ harder, more prestigious event.
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21438 challenges · browse all techniques

Challenge CTF Weight Category Has
Duality
#hmac-key-length-collision
 justCTF 2024 Quals 77.17 Crypto files wu 2
Star
#tar-wildcard-injection
 justCTF 2024 Quals 77.17 Reverse files wu 1
The_Otter_Scrolls
#hardcoded-secret
 justCTF 2024 Quals 77.17 Blockchain files wu 3
World_of_Ottercraft
#move-state-machine
 justCTF 2024 Quals 77.17 Blockchain files wu 3
interlock
#interlock-mitm
 justCTF 2024 Quals 77.17 Crypto files wu 3
justPocketTheBase
#xss-filter-bypass
 justCTF 2024 Quals 77.17 Web files wu 2
just_TV
#mheg-reversing
 justCTF 2024 Quals 77.17 Reverse files wu 3
leaving_soon
#drm-key-recovery
 justCTF 2024 Quals 77.17 Misc files wu 3
q3vm
#q3vm-oob
 justCTF 2024 Quals 77.17 Pwn files wu 1
Back_From_Brazil
#dynamic-programming
 n00bzCTF 2024 24.23 Misc files wu 1
Brain
#brainfuck-esolang
 n00bzCTF 2024 24.23 Reverse files wu 1
File_Sharing_Portal
#ssti-via-filename
 n00bzCTF 2024 24.23 Web files wu 2
RSA
#rsa-cube-root-attack
 n00bzCTF 2024 24.23 Crypto files wu 2
Random
#unseeded-rand-prng
 n00bzCTF 2024 24.23 Crypto files wu 2
Sillygoose
#binary-search
 n00bzCTF 2024 24.23 Misc files wu 1
Vinegar
#vigenere-cipher
 n00bzCTF 2024 24.23 Crypto files wu 3
Vinegar_2
#vigenere-cipher
 n00bzCTF 2024 24.23 Crypto files wu 2
flarenotes_revenge
#xss#dompurify-bypass#cloudflare-bypass
 vsCTF 2024 34.00 Web files wu 1
not_quite_caesar
#seeded-prng#operation-inversion
 vsCTF 2024 34.00 Crypto files wu 2
1_10
#knapsack#merkle-hellman#lll (lll-lattice-reduction)
 1337UP 2023 24.23 Crypto files wu 1
Encoding
#multi-layer-encoding#base32#base64#morse
 1337UP 2023 24.23 Misc files wu 1
FlagChecker
#z3-constraint-solving#rust-reversing
 1337UP 2023 24.23 Reverse files wu 2
Flag_Extraction
#nested-archives#binwalk-recursive-extraction
 1337UP 2023 24.23 Misc files wu 1
Floor_Mat_Store
#format-string
 1337UP 2023 24.23 Pwn files wu 2
Impossible_Mission
#6502-assembly#c64-emulation-reversing
 1337UP 2023 24.23 Reverse files wu 1
Keyless
#reversible-arithmetic-cipher#no-key-encoding
 1337UP 2023 24.23 Crypto files wu 2
Lunar_Unraveling_Adventure
#lua-5.1-bytecode-decompilation#unluac
 1337UP 2023 24.23 Reverse files wu 1
Maltigriti
#use-after-free (uaf)#heap-overlap
 1337UP 2023 24.23 Pwn files wu 1
Not_So_Smooth
#linear-congruence-recovery#modular-arithmetic#xor
 1337UP 2023 24.23 Crypto files wu 1
Obfuscation
#obfuscated-c#byte-transform-reversing
 1337UP 2023 24.23 Reverse files wu 3
Over_The_Edge
#integer-underflow#uint64-wraparound
 1337UP 2023 24.23 Pwn files wu 1
Really_Secure_Apparently
#rsa#wiener-attack#small-private-exponent
 1337UP 2023 24.23 Crypto files wu 2
Virtual_RAM
#game-boy-rom-reversing
 1337UP 2023 24.23 Reverse files wu 1
imPACKful
#upx-unpacking
 1337UP 2023 24.23 Reverse files wu 1
gimme_csp
#csp-bypass#content-type-confusion#xss
 ASIS 2023 Finals 89.80 Web files wu 1
Censorship
#pyjail-escape
 AmateursCTF 2023 24.54 Misc files wu 2
Censorship_Lite
#pyjail-escape
 AmateursCTF 2023 24.54 Misc files wu 3
ELFcrafting-v1
#elf-format-crafting#pwn
 AmateursCTF 2023 24.54 Pwn files wu 1
flagchecker
#scratch-project-reversing#deobfuscation
 AmateursCTF 2023 24.54 Reverse files wu 1
frog-math
#x87-mmx-register-aliasing#arbitrary-read-write#floating-point
 AmateursCTF 2023 24.54 Pwn files wu 1