CTF challenges & writeups

23 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
A_Simple_SP_Box #substitution-permutation-network #block-cipher #chosen-plaintext #key-recovery	DCTF 2021	–	Crypto	files wu 2
Baby_bof #stack-buffer-overflow #ret2libc #got-leak	DCTF 2021	–	Pwn	files wu 3
Bell #reversing #algorithm-replication #interactive	DCTF 2021	–	Reverse	files wu 3
Forgotten_secret #docker-image-forensics #layer-extraction #leaked-ssh-key	DCTF 2021	–	Crypto	files wu 1
Hansel_und_Gretel #reversing #bit-extraction #bit-position-table	DCTF 2021	–	Reverse	files wu 1
Hercules #reversing #z3 #constraint-solving #matrix	DCTF 2021	–	Reverse	files wu 1
Hotel_ROP #stack-buffer-overflow #ret2libc #pie	DCTF 2021	–	Pwn	files wu 3
Julius_ancient_script #caesar-cipher #shift-cipher	DCTF 2021	–	Crypto	files wu 3
Just_In_Time #reversing #dynamic-analysis #breakpoint-flag-extraction	DCTF 2021	–	Reverse	files wu 3
Just_Take_Your_Time #3des #time-based-key #pwntools-automation	DCTF 2021	–	Crypto	files wu 3
Just_another_heap #heap #null-pointer-write #write-what-where #got-overwrite	DCTF 2021	–	Pwn	files wu 1
Lockpicking #lfsr #cows-and-bulls #state-recovery	DCTF 2021	–	Crypto	files wu 1
Magic_trick #write-what-where #got-overwrite	DCTF 2021	–	Pwn	files wu 3
Pinch_me #stack-buffer-overflow #variable-overwrite	DCTF 2021	–	Pwn	files wu 3
Private_Encryption_Mistake #rsa #partial-private-key-recovery #ocr	DCTF 2021	–	Crypto	files wu 1
Pwn_sanity_check #stack-buffer-overflow #ret2win	DCTF 2021	–	Pwn	files wu 3
Readme #format-string #stack-leak	DCTF 2021	–	Pwn	files wu 3
Strong_password #zip-cracking #zip2john #john	DCTF 2021	–	Crypto	files wu 3
This_one_is_really_basic #base64 #encoding	DCTF 2021	–	Crypto	files wu 2
Tiny_interpreter #reversing #custom-interpreter #bytecode	DCTF 2021	–	Reverse	files wu 2
Unlimited_Power #file-format-analysis #garmin-fit #fit2csv	DCTF 2021	–	Reverse	files wu 1
Data_Recovery	DCTF 2021	–	Crypto	files
Scooby-Doo	DCTF 2021	–	Crypto	files

Challenges