GCC2024

GCC2024

GCC CTF 2024 is an online CTF organized by GCC (Galettes, Cidre, CTF), a CTF club from the ENSIBS school. The CTF is open to everyone and is held from the 1st to the 3rd of March 2024. I played with the S’hydrat team under the name Sérendipité.

The challenges and some writeups are available at the official GCC CTF 2024 repository.

Scoreboard

Scoreboard
Global scoreboard

Challenges

Crypto

SolvedNamePointsTagsDescription
GCC News100Crypto
SuperAES404Crypto
Elliptic471Crypto
Too Many Leaks397Crypto
Trust Issues500Crypto

Forensic

SolvedNamePointsTagsDescription
BipBipBiiip100Forensic
Pretty Links348Forensic
Fill the library458Forensic
Threat analysis467Forensic

Misc

SolvedNamePointsTagsDescription
Legerdemain381Misc
Bad Habit431Misc
Diabolical Grumpy Analyst431Misc
GCC Online475Misc
SoBusy436Misc
Legerdemain Revenge404Misc

OSINT

SolvedNamePointsTagsDescription
But they so tasty … 😔🍰267OSINT
Music from the city267OSINT
On the loose [1/2]453OSINT
On the loose [2/2]490OSINT

Pwn

SolvedNamePointsTagsDescription
Cuttin’String329Pwn
Baby bof453Pwn
Flag Roulette497Pwn

Reverse

SolvedNamePointsTagsDescription
rAnSoM100Reverse
GCC Chat 1/2339Reverse
GCC Chat 2/2467Reverse
Array programming rocks431Reverse
Warp jump453Reverse

Web

SolvedNamePointsTagsDescription
Find The Compass100Web
frenzy flask100Web
Free Cider299Web
The Genie’s pwn adventures381Web
Free Chat490Web
MLWeb481Web
The Genie’s pwn adventures revenge458Web

Web3

SolvedNamePointsTagsDescription
Synthatsu katana thief299Web
First drop458Web
TOOTB492Web
Pincer498Web
Ode494Web