Ctrl+Space 2025 Quals
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 |