CTF challenges & writeups

21438 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
Super_Secure_Encryption #pyc-decompilation #pbkdf2-aes #hardcoded-key	CYBERGON 2023	–	Reverse	files wu 1
What_is_it #autoit-decompilation #script-deobfuscation	CYBERGON 2023	–	Reverse	files wu 1
notebook #heap-overflow #pointer-chunk-overwrite #arbitrary-read-write #libc-2.35	CYBERGON 2023	–	Pwn	files wu 1
Barak #hessian-curve #ecdlp #pohlig-hellman	Crypto 2023	59.60	Misc	files wu 1
Blue_Office #lcg-keystream #seed-bruteforce #known-plaintext	Crypto 2023	59.60	Misc	files wu 1
Did_it #oracle-set-membership-leak #quadratic-residue-mapping	Crypto 2023	59.60	Misc	files wu 1
Insights #rsa #predictable-private-exponent	Crypto 2023	59.60	Misc	files wu 1
Roldy #order-preserving-encryption #binary-search-oracle	Crypto 2023	59.60	Misc	files wu 1
Trex #diophantine-equations #quadratic-double-root-construction	Crypto 2023	59.60	Misc	files wu 1
Fractional_Flag #rsa-variant #wiener-lattice-attack #small-private-exponent	Cryptoverse 2023	24.52	Crypto	files wu 1
Knapsack_vs_Backpack #subset-sum #greedy-knapsack #merkle-hellman #superincreasing-sequence	Cryptoverse 2023	24.52	Crypto	files wu 1
0ff_Again_On_Aga1n #binary-encoding #color-to-binary #image-decode	DEADFACE 2023	–	Crypto	files wu 1
B1Tz_and_B0tZ #multi-layer-encoding #binary #hex #rot13	DEADFACE 2023	–	Crypto	files wu 1
Cereal_Killer_01 #reversing #ghidra #stack-string-decode #debugger-patch	DEADFACE 2023	–	Reverse	files wu 2
Cereal_Killer_02 #reversing #xor-rotating-key #known-plaintext	DEADFACE 2023	–	Reverse	files wu 2
Cereal_Killer_04 #java-reversing #jar-decompilation #procyon	DEADFACE 2023	–	Reverse	files wu 1
Cereal_Killer_05 #reversing #gdb #memory-search	DEADFACE 2023	–	Reverse	files wu 2
Coin_Code #caesar-cipher	DEADFACE 2023	–	Crypto	files wu 1
HAM_JAM #morse-code #codablock-barcode #vigenere	DEADFACE 2023	–	Crypto	files wu 1
Letter_Soup #word-search #rot13	DEADFACE 2023	–	Crypto	files wu 1
My_Daily_Macros #vba-macro-analysis #xlsm #office-document	DEADFACE 2023	–	Reverse	files wu 1
Off_the_Rails #rail-fence-cipher	DEADFACE 2023	–	Crypto	files wu 1
Tin_Balloon #audio-steganography #audacity-reverse #deepsound	DEADFACE 2023	–	Forensics	files wu 1
Whats_the_Wallet #powershell-analysis #base64	DEADFACE 2023	–	Forensics	files wu 1
DesintegratedRSA #rsa #bit-flip-recovery #prime-reconstruction	DaVinciCTF 2023	29.26	Crypto	files wu 2
popcorn #heap #use-after-free (uaf)#function-pointer-overwrite #ret2win	DeadSec 2023	23.96	Pwn	files wu 1
Easy_Peasy #stack-buffer-overflow #ret2win	DeconstruCT.F 2023	11.23	Pwn	files wu 1
Magicplay #png-repair #file-signature-fix #forensics	DeconstruCT.F 2023	11.23	Forensics	files wu 1
whatThe #dtmf-decoding #fft #audio-analysis	DeconstruCT.F 2023	11.23	Reverse	files wu 1
4aes #aes #meet-in-the-middle (mitm)#bruteforce	Defcamp 2023 Quals	–	Crypto	files wu 1
baby_bof #stack-buffer-overflow #gets #ret2win	Defcamp 2023 Quals	–	Pwn	files wu 1
bistro #stack-buffer-overflow #gets #rop	Defcamp 2023 Quals	–	Pwn	files wu 1
bistro_v2 #stack-buffer-overflow #gets #rop	Defcamp 2023 Quals	–	Pwn	files wu 1
book #oob-index #arbitrary-read-write #got-overwrite #ret2libc	Defcamp 2023 Quals	–	Pwn	files wu 1
system_leak #format-string #arbitrary-read #libc-leak	Defcamp 2023 Quals	–	Pwn	files wu 1
system_write #format-string #buffer-overflow #got-overwrite	Defcamp 2023 Quals	–	Pwn	files wu 1
BBBB #rsa #lcg #coppersmith	DiceCTF 2023	36.70	Crypto	files wu 1
bop #stack-buffer-overflow #gets #seccomp #orw #rop	DiceCTF 2023	36.70	Pwn	files wu 3
chessrs #wasm #rust #use-after-free (uaf)#xss #web	DiceCTF 2023	36.70	Pwn	files wu 2
codebox #web #xss #csp-bypass #trusted-types	DiceCTF 2023	36.70	Web	files wu 2

Challenges