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offensive-z-wave

Z-Wave attack methodology — sniffing with Z-Force / EZ-Wave / RTL-SDR + ZniffMobile, S0 (legacy) network-key derivation flaw and key reuse, S2 (modern) ECDH commissioning analysis, replay/injection on unauthenticated nodes, default-key brute-force on test deployments, and home-automation hub pivots. Use when targeting Z-Wave smart home devices (door locks, sensors, garage controllers) — common in mid-2010s smart home deployments still in production.

57

Quality

66%

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SecuritybySnyk

Critical

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tessl review fix ./Skills/wireless/offensive-z-wave/SKILL.md
SKILL.md
Quality
Evals
Security

Security

2 findings: 2 critical severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.

Critical

E005: Suspicious download URL detected in skill instructions.

What this means

Detected a suspicious URL in the skill instructions that could lead the agent to download and execute malicious scripts or binaries. This includes links to executables from untrusted sources, typosquatting of official packages, URL shorteners that obscure the destination, and personal file hosting services.

Why it was flagged

Both links point to personal/unvetted GitHub content: an offensive checklist and a user-maintained repository (EZ-Wave) that provides custom firmware/tools for radio transceivers — untrusted repos distributing firmware/exploit tooling and explicit attack instructions are high-risk for malware or malicious firmware.

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Critical

E006: Malicious code pattern detected in skill scripts.

What this means

Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.

Why it was flagged

This document is an explicit offensive playbook: it instructs how to sniff and derive Z-Wave network keys, perform replay/injection to control devices, brute-force defaults, and pivot via hub compromise — clearly facilitating unauthorized access and data exfiltration.

Low

Low-risk findings.

1 low severity finding. Worth noting, but not necessarily harmful.

Low

W012: Unverifiable external dependency detected (runtime URL that controls agent).

What this means

The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.

Why it was flagged

The skill explicitly runs "git clone https://github.com/cureHsu/EZ-Wave" (SKILL.md:28) and then invokes tools from that repo (ezwave-sniff), meaning remote code is fetched at runtime and intended to be executed, so this is a runtime external dependency that can execute code.

Repository
SnailSploit/Claude-Red
Audited
Security analysis
Snyk

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