$ ctf42

Ctrl+Space 2025 Quals

weight 25.00 CTFtime official repo

Ctrl+Space CTF is the first European in-orbit Capture the Flag competition. The event is a joint collaboration between the European Space Agency (ESA), D-Orbit, and the mhackeroni team, who are also responsible for creating the challenges.

The competition consists of an online qualification round featuring space-themed jeopardy-style tasks, followed by an on-site final held during the Security for Space Systems (3S) Conference, taking place at ESTEC in the Netherlands from 4 to 6 November 2025.

Finalists will face real-time security challenges executed directly aboard D-Orbit’s ION Satellite Carrier, orbiting Earth in real time.

Ctrl+Space CTF is supported by the ESA Security Office and the ESA Security Cyber Centre of Excellence (SCCoE).

Join the discord: https://discord.gg/pkcCP34GPE

Web 1

Challenge Has
Satellite_as_a_Service files

Pwn 3

Challenge Has
cosmic_ray files
payloadcalc files
stack_smashing files

Reverse 6

Challenge Has
AS_FwUpd files
DANSAT_Restore_Me files
Satellite_Messaging_System files
carbonara_satellite files
hal_9000_1 files
lone_explorer files

Crypto 7

Challenge Has
DANSAT_Hidden_Secrets files
DANSAT_Photo_Shooting files
Three_Rounds_Crypto files
avenging_lfsrs files
spAES_1 files
spAES_2 files
x_otp files

Misc 3

Challenge Has
Hamming_Bird files
sar files
stack_building files