$ ctf42

Challenges

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

Challenge CTF Weight Category Has
radioactive K17 2025 24.83 OSINT files
secure_exam_browser K17 2025 24.83 Reverse files
singular_hole K17 2025 24.83 Pwn files
smoothie K17 2025 24.83 Misc files
tricks K17 2025 24.83 Crypto files
u_get_me_write K17 2025 24.83 Pwn files
worsehelp K17 2025 24.83 Crypto files
BreakMe Rush 2023 – Crypto files
VitalikVault Rush 2023 – Reverse files
onyo Rush 2023 – Pwn files
poune Rush 2023 – Pwn files
Archnemesis BSidesCanberra 2021 – Reverse files
Blinkenlights BSidesCanberra 2021 – Reverse files
Bomb_Disposal BSidesCanberra 2021 – Crypto files
Carton BSidesCanberra 2021 – Reverse files
Cloud_Analysis_Service BSidesCanberra 2021 – Pwn files
Cybears_Drive BSidesCanberra 2021 – Pwn files
Decrypt_as_a_Service BSidesCanberra 2021 – Crypto files
Despicable_Key BSidesCanberra 2021 – Crypto files
Empty_Vault BSidesCanberra 2021 – Crypto files
Energon_Flux_Monitor_Pt1 BSidesCanberra 2021 – Pwn files
Make_RSA_Great_Again BSidesCanberra 2021 – Crypto files
No_Cats BSidesCanberra 2021 – Reverse files
Optimal_Prime BSidesCanberra 2021 – Crypto files
Ordinary_Course_of_Business BSidesCanberra 2021 – Crypto files
Password_Safe BSidesCanberra 2021 – Crypto files
Rot_Away_Rust BSidesCanberra 2021 – Crypto files
Super_Cool_Facts_Server BSidesCanberra 2021 – Crypto files
Unbeatable_Game BSidesCanberra 2021 – Reverse files
certs BSidesCanberra 2021 – Crypto files
memcrashd BSidesCanberra 2021 – Pwn files
memcrashd_alpha BSidesCanberra 2021 – Pwn files
memcrashd_beta BSidesCanberra 2021 – Pwn files
memcrashd_trophy BSidesCanberra 2021 – Pwn files
neophyte_1 BSidesCanberra 2021 – Pwn files
nt-ophyte BSidesCanberra 2021 – Pwn files
path.to.flag BSidesCanberra 2021 – Pwn files
r2c2 BSidesCanberra 2021 – Reverse files
secure_service_monitor BSidesCanberra 2021 – Pwn files
supergm BSidesCanberra 2021 – Crypto files