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Security audit

ZeroTier

Security checks for vulnerabilities and agentic risk

Overview

The skill is a coherent ZeroTier connector, but its setup guidance tells an agent to install the required CLI by executing a remote script without verification.

Review the oo CLI installation path before installing. Prefer official, version-pinned installation instructions with checksum or signature verification, and only connect a ZeroTier account whose permissions match the tasks you want the agent to perform. Treat destructive ZeroTier operations as high impact and confirm targets carefully.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

External Script Fetching

High
Category
Supply Chain
Confidence
97% confidence
Finding

The skill instructs the agent to install software by piping a remotely fetched script directly into a shell (curl ... | bash). This is dangerous because it executes unverified code from the network without integrity checking, version pinning, or user review, creating a supply-chain and remote code execution risk if the server, CDN, DNS, TLS trust chain, or script content is compromised.

Content

Scanner excerpt · SKILL.md (reported line 122)May include surrounding context.

Static analysis

No suspicious patterns detected.