GPN 2025
The GPN CTF 2025 is this year’s CTF edition organized by KITCTF. Play online or in person at the GPN.
This is a student run jeopardy-style CTF with challenges from the categories crypto, pwn, reversing, web and misc (including some more exotic ones). Featuring both a range of easy challenges from each category and a majority of hard challenges it will be a great CTF for beginners and experienced players alike.
Communication channels: https://discord.gg/TxPA4ZVUnm
Thank you to our sponsors for supporting the CTF! * Main & Prize Sponsor: GitHub Security Lab * Writeup Sponsor: Zellic * Infrastructure Sponsor: TelemaxX Telekommunikation GmbH
Learn more about our sponsors and opportunities they have: https://gpn23.ctf.kitctf.de/#sponsors
Web 14
| Challenge | Has |
|---|---|
| Free_Parking_Network | files |
| Free_Parking_Network_v2 | files |
| Intro_to_Part_1 | files |
| Intro_to_Part_2 | files |
| Intro_to_Part_3 | files |
| Intro_to_Part_4 | files |
| Intro_to_Part_5 | files |
| PAINting_Dice | files |
| Real_Christmas | files |
| Real_Christmas_V2 | files |
| Secure_by_Default | files |
| Smile_at_me | files |
| Yavascript_Blog | files |
| Yavascript_Blog_CSP_Edition | files |
Pwn 5
| Challenge | Has |
|---|---|
| JShellCode | files |
| NASA | files |
| Note_Editor | files |
| Terminator_2 | files |
| no_nc | files |
Reverse 5
| Challenge | Has |
|---|---|
| CustomDice | files |
| Honeypot | files |
| MiniDSP | files |
| The_old_way | files |
| variants | files |
Crypto 5
| Challenge | Has |
|---|---|
| Paranoid | files |
| Pro_v_b_ably_secure | files |
| TES | files |
| hinting | files |
| restricted_oracle | files wu 2 |
Misc 2
| Challenge | Has |
|---|---|
| Check_This_Out | files |
| Git_Gud | files |