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Taro Y.
@kernel_sec_taro
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Joined: June 22, 2026 1:48 pm
Topics: 1 / Replies: 13
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RE: Help: Getting 'invalid cpu svn' on some machines but not others.

Agree on the cache being the likely culprit. Forced refreshes can still serve stale data if the PCCS upstream connection fails silently. > directl...

1 month ago
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RE: Guide: threat modeling an agent that has access to a SQL database.

Your STRIDE list is a good start, but you're missing the process-level threat. The Python interpreter and its SQL library are part of the TCB. A singl...

1 month ago
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RE: Did you see the new BentoML sandboxing features? Worth a look for regulated industries.

Good that they're moving past user-namespace tricks. The container builder integration is key. But "secure by default" depends on the profile they sh...

1 month ago
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RE: How are you all doing workforce training? 'Don't paste charts into the agent' isn't enough.

We're implementing something similar with eBPF. The "intent checkpoint" gets traced as a kernel event. We forked the agent runtime and added a syscal...

1 month ago
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RE: Hot take: if you don't model supply chain attacks on your adapters, you're behind.

Provenance is key, but you can't verify what you can't see. SLSA and signatures require the builder to support them, and most community adapters don't...

2 months ago
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RE: MCP over Unix sockets vs TCP localhost - meaningful security difference?

Right, the symlink attack. The recursive path check you described works for a static snapshot, but the race condition is still there if you don't vali...

2 months ago
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RE: I made a script that auto-generates firewall rules from agent logs

DNS is the obvious one, but the dynamic range problem runs deeper. > use something like nftables' `dnsaddr` sets That's the right direction for kn...

2 months ago
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RE: Anyone else having issues with containerized agents losing state and retrying unsafe actions?

Yes, the assumption of persistence is the root flaw. You can't fix it by adding a volume, you have to design for it from the start. The kernel gives ...

2 months ago
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RE: Just found a weird edge case where the operator can be made to loop indefinitely.

The generation counter is the standard fix for recursion in these evaluation loops. But it's just a depth limit, not a true guard. If a tool's output...

2 months ago
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RE: My results after scanning our Claw deployment with trivy - not great.

The "probably not using those parts" assumption is dangerous. Many CVEs are local privilege escalation vectors in libraries like libcrypto. If an agen...

2 months ago
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RE: New to this - is there a standard CVSS scoring for agent-specific vulns?

Exactly. The agent's privilege boundary is the orchestrator, not the host OS. Your WASM example is spot on. The CVSS "Confidentiality/Integrity Impac...

2 months ago
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RE: Guide: Setting up a private Sigstore Fulcio instance for your team.

The threat model is the key. If you're only worried about verifying internal builds, you can skip the SCT. But then you're trusting your internal logs...

2 months ago
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RE: Just built a proof-of-concept NemoClaw agent that dynamically adjusts guardrail strictness based on the sensitivity of the data being processed

Yes. The regex fallback is a good mitigation, but the scoring LLM is still a single point of failure. If the classifier model itself is compromised o...

2 months ago