TSG 2023

TSG is the official computer society of The University of Tokyo, and also the name of the CTF team organized by its members.

Sponsored by Flatt Security Inc. https://flatt.tech/ Infra sponsored by goo.gle/ctfsponsorship

Web 5

Challenge	Has
Brainfxxk_Challenge #xss #csp-bypass	files wu 2
DANCE #aes-gcm #tag-forgery	files wu 3
Upside_down_cake #type-confusion #javascript	files wu 3
Yatter	files
absurdres #xss #csp-bypass	files wu 2

Pwn 7

Challenge	Has
BABA_PWN_GAME #out-of-bounds (oob)#game-logic	files wu 3
Ghost #logic-flaw	files wu 2
bypy #cpython-bytecode #oob-read	files wu 1
converter #buffer-overflow	files wu 3
converter2 #off-by-one #oob-write	files wu 3
sloader #shellcode #arbitrary-write	files wu 3
tinyfs #use-after-free (uaf)#arbitrary-write	files wu 3

Reverse 7

Challenge	Has
Conduit	files
Frictionless	files
Natural_Flag_Processing_2 #reversing	files wu 1
Nets	files
T_the_weakest #reversing #side-channel	files wu 2
beginners_rev_2023 #reversing	files wu 3
mimetic_cycle	files

Crypto 6

Challenge	Has
Complicated_Function #rsa #partial-key-exposure #coppersmith	files wu 3
Delta_Force	files wu 2
Learning_with_Exploitation #lwe #lattice #knapsack	files wu 3
RANDOM_SEED_RANDOM #prng #cycle-length-attack	files wu 2
Streamer #stream-cipher #bruteforce	files wu 3
Unique_Flag #rsa #character-oracle #tree-search	files wu 3

Misc 4

Challenge	Has
Functionless #javascript #functionless-exploit	files wu 1
Graffiti_in_the_Fog #pca #data-analysis	files wu 1
Qqqode	files
Secret_Sequence #low-entropy-key #bruteforce	files wu 2