CTF challenges & writeups

7364 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
Rev3 #xor	angstromCTF 2018	–	Reverse	files wu 1
Rop_to_the_Top #stack-buffer-overflow #ret2win	angstromCTF 2018	–	Pwn	files wu 1
Waldo 2 #file-diff #strings	angstromCTF 2018	–	Misc	files wu 1
Warmup #affine-cipher	angstromCTF 2018	–	Crypto	files wu 1
XOR #single-byte-xor	angstromCTF 2018	–	Crypto	files wu 1
ofb #ofb #known-plaintext	angstromCTF 2018	–	Crypto	files wu 1
Almost Xor #xor #known-plaintext	CSAW 2017 Quals	24.61	Crypto	files src wu 1
Baby Crypt #aes-ecb #chosen-plaintext #byte-at-a-time	CSAW 2017 Quals	24.61	Crypto	files src wu 1
Banana Script #custom-interpreter	CSAW 2017 Quals	24.61	Reverse	files src wu 1
Minesweeper #upx #heap-overflow	CSAW 2017 Quals	24.61	Pwn	files src wu 1
Pilot #stack-buffer-overflow #shellcode	CSAW 2017 Quals	24.61	Pwn	files src wu 1
Serial #serial-protocol #parity	CSAW 2017 Quals	24.61	Misc	files src wu 1
Tablez #table-substitution	CSAW 2017 Quals	24.61	Reverse	files src wu 1
auir #heap-uaf #double-free #fastbin-attack #libc-leak #cpp	CSAW 2017 Quals	24.61	Misc	files src wu 3
scv #stack-buffer-overflow #canary-leak #rop	CSAW 2017 Quals	24.61	Misc	files src wu 3
zone #heap-off-by-one #linked-list-overflow #got-overwrite	CSAW 2017 Quals	24.61	Misc	files src wu 3
Amoebananas! #view-source	angstromCTF 2016	–	Web	files src wu 1
Artifact #substitution-cipher #quipqiup	angstromCTF 2016	–	Crypto	files src wu 1
Endian of the World #endianness	angstromCTF 2016	–	Pwn	files src wu 1
Format 1 #format-string #variable-overwrite	angstromCTF 2016	–	Pwn	files src wu 1
Java is the Best #java-decompilation	angstromCTF 2016	–	Reverse	files src wu 1
Recovery #strings	angstromCTF 2016	–	Forensics	files src wu 1
SPQR #caesar-cipher	angstromCTF 2016	–	Crypto	files src wu 1
SuperSecure™ #client-side-auth #javascript	angstromCTF 2016	–	Web	files src wu 1
What the Hex #hex #base64	angstromCTF 2016	–	Crypto	files src wu 1
metasploitable #pcap-analysis #file-carving #webshell	angstromCTF 2016	–	Forensics	files src wu 1
Big Data #pcap-analysis #telnet	CSAW 2014 Quals	–	Web	files wu 1
Egg Shells #python-decompilation #pyc	CSAW 2014 Quals	–	Reverse	files wu 1
Obscurity #pdf #hidden-text	CSAW 2014 Quals	–	Forensics	files wu 1
refraction	LA 2026	–	Pwn	files wu 1
flagcheck67	ScriptCTF 2026	–	Misc	files wu 1
Firefly_Complete_Combustion	UIUCTF 2026	–	Pwn	files wu 1
GODMODE_999	UIUCTF 2026	–	Reverse	files wu 1
Nabi_AI	UIUCTF 2026	–	Web	files wu 1
Something_Handmade	UIUCTF 2026	–	OSINT	files wu 1
Sparxie_Vanishing_Encore	UIUCTF 2026	–	Pwn	files wu 1
Veil_of_Evernight	UIUCTF 2026	–	Reverse	files wu 1
Young_Cryptography	UIUCTF 2026	–	Crypto	files wu 1
emacsjail2	UIUCTF 2026	–	Misc	files wu 1
glyphs	UIUCTF 2026	–	Reverse	files wu 1

Challenges