$ ctf42

Challenges

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Higher weight ≈ harder, more prestigious event.
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7364 challenges · browse all techniques

Challenge CTF Weight Category Has
Go_Write_Where L3akCTF 2025 24.43 Pwn files
Hash_in_a_Haystack L3akCTF 2025 24.43 Crypto files
I_Did_a_Thing L3akCTF 2025 24.43 Reverse files
Invisible L3akCTF 2025 24.43 Forensics files
Just_Bun_It L3akCTF 2025 24.43 Reverse files
L3ak_Advanced_Defenders L3akCTF 2025 24.43 Forensics files
Math_Is_Key L3akCTF 2025 24.43 Reverse files
Math_as_a_Service L3akCTF 2025 24.43 Misc files
Mildly_Disastrous_5ecurity L3akCTF 2025 24.43 Crypto files
Notes++ L3akCTF 2025 24.43 Pwn files
NotoriousNote L3akCTF 2025 24.43 Web files
PricelessL3ak L3akCTF 2025 24.43 Mobile files
Quantam_Exfil L3akCTF 2025 24.43 Reverse files
RNJail L3akCTF 2025 24.43 Misc files
Rule_Breaker_1 L3akCTF 2025 24.43 Crypto files
Rule_Breaker_2 L3akCTF 2025 24.43 Crypto files
SShEllcode L3akCTF 2025 24.43 Pwn files
Safe_Gets L3akCTF 2025 24.43 Pwn files
Secret2 L3akCTF 2025 24.43 Crypto files
Shiro_Hero L3akCTF 2025 24.43 Crypto files
Skill_Diff L3akCTF 2025 24.43 Crypto files
Strange_Transmission L3akCTF 2025 24.43 Hardware files
The_Goose L3akCTF 2025 24.43 Pwn files
Useless_VM L3akCTF 2025 24.43 Reverse files
Whitespace L3akCTF 2025 24.43 Misc files
Wi_Fight_A_Ghost L3akCTF 2025 24.43 Forensics files
Window_of_Opportunity L3akCTF 2025 24.43 Web files
babyRev L3akCTF 2025 24.43 Reverse files
cosmofile L3akCTF 2025 24.43 Pwn files
pacman L3akCTF 2025 24.43 Reverse files
1000xREV LA 2025 – Reverse files
2password LA 2025 – Pwn files
Danger_Searching LA 2025 – Misc files
Extremely_Convenient_Breaker LA 2025 – Crypto files
RSAaaS LA 2025 – Crypto files
antisocial_media LA 2025 – Web files
big_e LA 2025 – Crypto files
bigram_times LA 2025 – Crypto files
cache_it_to_win_iti LA 2025 – Web files
chessbased LA 2025 – Web files