CTF challenges & writeups

7364 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
Badseed #predictable-rand	K3RN3LCTF 2021	24.37	Crypto	files wu 2
Beecryption #gf2-linearization	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Cozzmic_Dizzcovery #xor-state-recovery	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Game_of_Secrets #cellular-automata-keystream	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Gradebook #tcache-poisoning	K3RN3LCTF 2021	24.37	Pwn	files wu 2
HADIOR #hamming-distance-oracle	K3RN3LCTF 2021	24.37	Crypto	files wu 1
K3RN3L_DROID #assembly	K3RN3LCTF 2021	24.37	Reverse	files wu 3
Lightningrod #stateful-xor-cipher	K3RN3LCTF 2021	24.37	Reverse	files wu 1
Non-Square_Freedom_1 #non-squarefree-rsa	K3RN3LCTF 2021	24.37	Crypto	files wu 2
Non-Square_Freedom_2 #non-squarefree-rsa	K3RN3LCTF 2021	24.37	Crypto	files wu 2
Objection #dsa-malicious-generator	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Poly-Proof #base-b-coefficient-recovery	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Poly_Expo_go_BRRRRR #polynomial-factorization	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Rasm #custom-vm-reversing	K3RN3LCTF 2021	24.37	Reverse	files wu 1
Recurso #custom-vm-reversing	K3RN3LCTF 2021	24.37	Reverse	files wu 1
Shrine_of_the_Sweating_Buddha #paillier-predictable-randomness	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Tick_Tock #ecdlp	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Total_Encryption #franklin-reiter	K3RN3LCTF 2021	24.37	Crypto	files wu 1
Vietas_Poly #vietas-formulas	K3RN3LCTF 2021	24.37	Crypto	files wu 2
Zabomb #zip-bomb	K3RN3LCTF 2021	24.37	Reverse	files wu 2
easy_kernel #kernel-rop	K3RN3LCTF 2021	24.37	Pwn	files wu 1
on_the_hook #format-string	K3RN3LCTF 2021	24.37	Pwn	files wu 2
A_Kind_of_Magic #stack-buffer-overflow #variable-overwrite	KillerQueen 2021	21.14	Pwn	files wu 1
Cloudsourcing #rsa #rsactftool	KillerQueen 2021	21.14	Crypto	files wu 1
Deoxyencoded_Nucleic_Acid #dna-encoding	KillerQueen 2021	21.14	Crypto	files wu 1
I_want_to_break_free #pyjail #exec-bypass	KillerQueen 2021	21.14	Pwn	files wu 1
Just_Not_My_Type #php #strcmp-type-juggling	KillerQueen 2021	21.14	Web	files wu 1
PHat_Pottomed_Girls #php #filter-bypass #code-injection	KillerQueen 2021	21.14	Web	files wu 1
Road_Safety_Association #rsa	KillerQueen 2021	21.14	Crypto	files wu 1
Tweety_Birb #format-string #canary-leak	KillerQueen 2021	21.14	Pwn	files wu 1
fufu #char-counter-overflow #heap-overflow	KillerQueen 2021	21.14	Pwn	files wu 1
sneeki_snek #python-bytecode	KillerQueen 2021	21.14	Reverse	files wu 1
zoom2win #ret2win	KillerQueen 2021	21.14	Pwn	files wu 1
Ransomware_Patch	MetaCTF 2021	–	Crypto	files wu 2
MRSA #rsa #modular-oracle #p-mod-r-leak	PBjar 2021	23.18	Crypto	files wu 1
Not_Baby #rsa #factordb #multi-prime-rsa	PBjar 2021	23.18	Crypto	files wu 1
ProgrammersHateProgramming_2 #php-filter-bypass #nested-keyword-bypass #php-code-injection	PBjar 2021	23.18	Web	files wu 1
curve #format-string #stack-buffer-overflow #free-hook	PBjar 2021	23.18	Pwn	files wu 2
fmtstr #format-string #got-overwrite #libc-leak	PBjar 2021	23.18	Pwn	files wu 1
heapnot #stack-buffer-overflow #rop #mprotect #reverse-shell-shellcode	PBjar 2021	23.18	Pwn	files wu 1

Challenges