AI security lab · Supply Chain Attacks

Model Registry Hijacking

Model registries (MLflow, Weights & Biases, internal registries) track model versions. Hijacking the registry allows an attacker to replace a production model with a malicious one. **Challenge:** An MLflow model registry has weak access controls. Demonstrate how an attacker with read access can escalate to register a malicious model version and promote it to the 'Production' stage, replacing the legitimate model.

advancedPro labLLM03 Supply Chain
Reward
150 XP
Time
30 to 60 minutes
Solved by
0 learners
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What you will practice

Technique

Model Registry Hijacking

OWASP LLM Top 10 (2025)

LLM03 Supply Chain

How QbitDojo labs work

  1. Step 1

    A live AI target

    Each lab is a real language model with its own instructions, guardrails and a secret flag it must protect.

  2. Step 2

    You attack it

    Talk to it like a red teamer would. Craft prompts, chain techniques and use hints if you get stuck.

  3. Step 3

    Capture the flag

    Get the model to reveal the flag to solve the lab, earn XP and climb the leaderboard.

  4. Step 4

    Then defend it

    In labs with Defense Mode, write the hardened system prompt that blocks the attack you just used.