SekaiCTF 2023
SekaiCTF is back for its second iteration! This year’s competition takes place over 48 hours, featuring various categories designed to test participants’ skills and incentivize learning. Our CTF is catered towards intermediate players, but we also have beginner-friendly challenges alongside extremely difficult ones for more advanced competitors.
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Categories: Web, Crypto, Pwn, Reverse, Misc, Forensics, and Programming (PPC).
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Prize pool: $3,000 cash and $16,000+ worth of prizes
Sponsors: - OtterSec (https://osec.io/) - Trail of Bits (https://www.trailofbits.com/) - Sec3 (https://www.sec3.dev/) - Vector 35 / Binary Ninja (https://binary.ninja/) - N0H4TS (https://n0h4ts.com/) - Hack The Box (https://www.hackthebox.com/) - Offensive Security (https://www.offensive-security.com/) - RET2 Systems (https://ret2.io/)
Infra sponsored by Google Cloud Platform (https://g.co/cloud)
Discord: https://discord.gg/6gk7jhCgGX
Web 5
| Challenge | Has |
|---|---|
| Chunky | files wu 1 |
| Frog_WAF | files wu 1 |
| Golf_Jail | files |
| Leakless_Note | files |
| Scanner_Service | files wu 1 |
Pwn 7
| Challenge | Has |
|---|---|
| Algorithm_Multitool | files |
| Blockchain_The_Bidding | files wu 2 |
| Cosmic_Ray | files src |
| Hibana | files |
| Network_Tools | files |
| Notification | files |
| Text_Sender | files |
Reverse 5
| Challenge | Has |
|---|---|
| Azusawa_s_Gacha_World | files wu 1 |
| Conquest_of_Camelot | files |
| Guardians_of_the_Kernel | files |
| Sahuang_Flag_Checker | files |
| Teyvat_Travel_Guide | files wu 1 |
Crypto 7
| Challenge | Has |
|---|---|
| Diffecientwo | files wu 1 |
| Noisier_CRC | files wu 1 |
| Noisy_CRC | files wu 1 |
| RandSubWare | files wu 1 |
| cryptoGRAPHy_1 | files wu 1 |
| cryptoGRAPHy_2 | files wu 1 |
| cryptoGRAPHy_3 | files wu 1 |
Forensics 2
| Challenge | Has |
|---|---|
| DEF_CON_Invitation | files |
| Eval_Me | files wu 2 |
Misc 10
| Challenge | Has |
|---|---|
| A_letter_from_the_Human_Resource_Management | files |
| Blockchain_Play_for_Free | files wu 2 |
| Blockchain_Re_Remix | files wu 3 |
| I_love_this_world | files wu 1 |
| Just_Another_Pickle_Jail | files |
| QR_God | files wu 1 |
| SSH | files wu 1 |
| Project_Sekai_Event_Planner | files |
| Purple_Sheep_And_The_Apple_Rush | files |
| Wiki_Game | files |