CTF challenges & writeups

1001 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
Revenge_of_the_Sith #lll-lattice-attack	LakeCTF 2025 Quals	–	Crypto	files wu 1
The_Phantom_Menace #private-key-disclosure	LakeCTF 2025 Quals	–	Crypto	files wu 1
Wordler #automated-wordle-solver	LakeCTF 2025 Quals	–	Misc	files wu 1
drum_machine #constraint-solving	LakeCTF 2025 Quals	–	Reverse	files wu 1
gamblecore #parseint-coercion-bug	LakeCTF 2025 Quals	–	Web	files wu 1
CONPASS	TSG 2024	–	Crypto	files wu 3
Cached_File_Viewer	TSG 2024	–	Misc	files wu 3
Cached_File_Viewer_2	TSG 2024	–	Misc	files wu 3
Cipher_Preset_Button	TSG 2024	–	Web	files wu 3
Easy_ECDLP	TSG 2024	–	Crypto	files wu 3
FL_Support_Center	TSG 2024	–	Pwn	files wu 2
Feistel_Barrier	TSG 2024	–	Crypto	files wu 3
I_Have_Been_Pwned	TSG 2024	–	Web	files wu 3
Misbehave	TSG 2024	–	Reverse	files wu 3
Mystery_of_Scattered_Key	TSG 2024	–	Crypto	files wu 3
Password_Ate_Quiz	TSG 2024	–	Pwn	files wu 3
Scattered_in_the_fog	TSG 2024	–	Misc	files wu 3
TSGDBinary	TSG 2024	–	Reverse	files wu 3
Toolong_Tea	TSG 2024	–	Web	files wu 3
Warmup_SQLite	TSG 2024	–	Reverse	files wu 3
Who_is_the_Outlier	TSG 2024	–	Crypto	files wu 3
piercing_misty_mountain	TSG 2024	–	Pwn	files wu 3
prime_shellcode	TSG 2024	–	Misc	files wu 3
serverless	TSG 2024	–	Reverse	files wu 3
simple_calc	TSG 2024	–	Misc	files wu 3
vuln_img	TSG 2024	–	Pwn	files wu 3
momomomomemomemo	LINE 2023	–	Web	files wu 3
safenote	LINE 2023	–	Web	files wu 1
Tokyo_Payload	SECCON 2023 Quals	100.00	Misc	files wu 2
Delta_Force	TSG 2023	–	Crypto	files wu 2
EZDORSA-Lv2 #rsa #low-public-exponent #nth-root	WaniCTF 2023	24.99	Crypto	files wu 1
EZDORSA-Lv3 #rsa #multiprime #factorization	WaniCTF 2023	24.99	Crypto	files wu 1
Just-Passw0rd #strings	WaniCTF 2023	24.99	Reverse	files wu 1
pqqp #rsa #factorization-from-hint	WaniCTF 2023	24.99	Crypto	files wu 1
AttackOnCanary #canary-bruteforce	LakeCTF 2022 Quals	23.96	Pwn	files wu 1
Baby-rev #bruteforce-reversing	LakeCTF 2022 Quals	23.96	Reverse	files wu 2
Immutable #metamorphic-contract	LakeCTF 2022 Quals	23.96	Blockchain	files wu 2
NeutronMail #common-factor-gcd	LakeCTF 2022 Quals	23.96	Crypto	files wu 1
QuinEVM #evm-quine	LakeCTF 2022 Quals	23.96	Blockchain	files wu 2
WayTooSimple #format-string	LakeCTF 2022 Quals	23.96	Pwn	files wu 1

Challenges