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Security audit

FastRouter Setup

Security checks for vulnerabilities and agentic risk

Overview

This skill performs a narrow FastRouter setup for OpenClaw, with expected config changes and no evidence of hidden exfiltration or malicious behavior.

Install this if you want Codex to configure FastRouter in OpenClaw. Before running it, check whether you already have custom FastRouter settings because the skill refreshes that provider block, and only approve the gateway restart when a brief interruption is acceptable.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (5)

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill asks for a user API key but then fetches the model list without using authenticated headers, so it may retrieve an incomplete or generic catalog instead of the user's actual available models. This can silently misconfigure OpenClaw, leading to broken model entries, failed requests, or incorrect assumptions about what the account can access.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 28)May include surrounding context.

Use web_fetch to get the model list:

text
web_fetch url="https://api.fastrouter.ai/v1/models" extractMode="text"

3. Filter models

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The skill instructs overwriting the existing models.providers.fastrouter configuration with a fresh model list, which can destroy prior custom settings, manually curated models, or nondefault provider options. Because this write targets a user config file, the lack of a prominent warning and confirmation increases the risk of unintended configuration loss.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

Restarting the OpenClaw gateway can interrupt active sessions or temporarily break dependent workflows, yet the skill does not clearly explain that operational impact before asking for approval. User approval alone is not sufficient if the consequences of that approval are not made explicit.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Low
Category
Not specified by scanner
Confidence
98% confidence
Finding

Line L008 says the setup uses only built-in tools and requires no script execution. Later, L082-L084 instruct running openclaw gateway restart, which is command execution and therefore contradicts the earlier claim about how the skill operates.

Content

No source excerpt is available for this finding.