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Security audit

LiuZewei Hello Demo

Security checks for vulnerabilities and agentic risk

Overview

This is a simple greeting skill that prints a name-based greeting and does not show hidden data access, persistence, or destructive behavior.

Install only if you are comfortable with a demo skill that may be invoked for greeting requests and that advertises a GitHub release update endpoint. Review the publisher/source if provenance matters, especially because the manifest and script header list different author names.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (3)

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 · config.json (reported line 9)May include surrounding context.

json
"license": "MIT",
  "min_openclaw_version": "1.0.0",
  "entry_point": "scripts/greet.py",
  "update_url": "https://api.github.com/repos/liuzewei1990/openclaw-skill-demo/releases/latest",
  "tags": ["demo", "greeting", "utility"],
  "requirements": {
    "python": ">=3.8"

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The markdown says the skill can be invoked 'when users ask for greetings' and gives 'Say hello to Alice' as an example, but it does not define the exact trigger scope or any exclusion conditions. This is broad everyday language that could overlap with common chat requests and cause unintended invocations.

Content

No source excerpt is available for this finding.

Vague Triggers

Low
Category
Not specified by scanner
Confidence
85% confidence
Finding

This manifest describes the skill only as 'A simple greeting skill for OpenClaw' without any explicit trigger phrases, activation conditions, or exclusions. For manifest files, the absence of specific invocation scope can make it unclear when the skill should activate versus when it should not.

Content

No source excerpt is available for this finding.