$ ctf42

Challenges

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277 challenges · browse all techniques

Challenge CTF Weight Category Has
Bakerman
#file-signature-spoofing#zsteg
 BrunnerCTF 2025 24.66 Misc files wu 1
New_Order
#vba-macro-deobfuscation
 BrunnerCTF 2025 24.66 Forensics files wu 1
DNXSS_over_HTTPS
#dns-txt-record-xss
 KalmarCTF 2025 33.89 Web files wu 1
G0tchaberg
#html-to-pdf-lfi
 KalmarCTF 2025 33.89 Web files wu 2
basic_sums
#digit-sum-crt
 KalmarCTF 2025 33.89 Crypto files wu 2
File_Store
#pickle-deserialization
 KalmarCTF 2024 24.21 Web files wu 1
One_key_to_rule_them_all
#signing-oracle-forgery
 KalmarCTF 2024 24.21 Web files wu 1
Symmetry_1
#spn-cipher-inversion
 KalmarCTF 2024 24.21 Reverse files wu 1
Symmetry_2
#out-of-bounds-write
 KalmarCTF 2024 24.21 Crypto files wu 1
Symmetry_3
#rop-chain
 KalmarCTF 2024 24.21 Pwn files wu 1
breakfaest
#fiat-shamir-forgery
 KalmarCTF 2024 24.21 Crypto files wu 1
Admin_CLI
#hash-collision
 FE-CTF 2023 – Misc files wu 1
Inception
#nested-files
 FE-CTF 2023 – Misc files wu 1
Shorty_level35
#shellcode
 FE-CTF 2023 – Misc files wu 1
Ez
#host-header-path-injection
 KalmarCTF 2023 24.21 Web files wu 1
mjs
#ffi-pointer-abuse
 KalmarCTF 2023 24.21 Pwn files wu 3
garbage-is-easy
#tcache-poisoning
 FE-CTF 2022 – Pwn files wu 1
hug-me-squeeze-me
#rwx-page
 FE-CTF 2022 – Pwn files wu 1
snake-jazz
#vm-reversing
 FE-CTF 2022 – Reverse files wu 1
snake-oil
#buffer-overflow
 FE-CTF 2022 – Pwn files wu 1
Activating_Neurons BrunnerCTF 2026 24.66 Misc files
Alternative_channel BrunnerCTF 2026 24.66 Misc files
Bears BrunnerCTF 2026 24.66 Forensics files
Blackboard BrunnerCTF 2026 24.66 Crypto files
BrunnerCorp_Pre_Employment_Aptitude_Test BrunnerCTF 2026 24.66 Reverse files
Brunner_Radio BrunnerCTF 2026 24.66 Crypto files
Brunner_Stocks BrunnerCTF 2026 24.66 Pwn files
Business_Trip BrunnerCTF 2026 24.66 OSINT files
CAN_you_read_this BrunnerCTF 2026 24.66 Forensics files
CakeSearch BrunnerCTF 2026 24.66 Mobile files
CleanDesk BrunnerCTF 2026 24.66 Mobile files
Company_Discount BrunnerCTF 2026 24.66 Forensics files
Decompile BrunnerCTF 2026 24.66 Reverse files
Fair_Gambling BrunnerCTF 2026 24.66 Web files
Free_Play BrunnerCTF 2026 24.66 Forensics files
Functional_Budget BrunnerCTF 2026 24.66 Misc files
Git_gud BrunnerCTF 2026 24.66 Misc files
Go_Go_Decompile BrunnerCTF 2026 24.66 Reverse files
Going_Paperless BrunnerCTF 2026 24.66 Crypto files
Guessing_game BrunnerCTF 2026 24.66 Pwn files