RatCTF
🐀🐀 0 pts earned

API Auth

Premium Machine (Locked)

🧩 ExposedAPI

🖧 AD Network — ExposedAPI

API Users 🔒 API Profile API Auth 🔒 API Admin 🔒 API Fetch

JWT authentication with HS256 using secret='secret'. The alg:none attack is also accepted. Forge an admin JWT to access /api/v1/admin/creds which exposes SSH credentials. Only admin can SSH, so the forge is mandatory. cap_setuid python3 for root.

🩸 First user blood: thinkverse 🩸 First root blood: thinkverse
Part of the ExposedAPI set — it is not listed on the main challenges page, but its ports are open to you. Connect straight to the target IP and ports below; no pivot needed.
Target IP Premium required
User Flag Pending
Root Flag Pending

Community

Community Hints

Grade A · 1000 pts Grade B · 700 pts Grade C · 400 pts Grade D · 200 pts + 150 credits on accept

Short, stage-specific nudges — directional, spoiler-light, no exact commands.

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Community

Community Walkthroughs

Grade A · 2500 pts Grade B · 1750 pts Grade C · 1000 pts Grade D · 500 pts + 300 credits on accept

🔒 Walkthroughs are spoilers — capture the root flag on this machine to unlock them for free.