ClawHub
Back to skill

Security audit

Uuidgen

Security checks for vulnerabilities and agentic risk

Overview

This is a simple local UUID utility with one documentation mismatch but no hidden access, persistence, network behavior, or unsafe authority.

Install only if you need a local UUID generator/validator. Be aware that nano ID generation is advertised but not present, and avoid using the 8-character short IDs as security tokens because they are intended for display or lightweight identifiers, not strong secrets.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

Tp4

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The declared description says the skill is for generating UUIDs, short IDs, and nano IDs. The code does generate UUID v4 values, batch UUIDs, and short 8-character IDs, which partially matches. However, it also provides additional undeclared capabilities: validating UUIDs, extracting UUIDs from text, and reporting UUID version and variant. More importantly, one declared capability is not implemented: there is no nano ID generation. The primary purpose is closer to a UUID generator/validator CLI than a generator for UUIDs, short IDs, and nano IDs broadly. No suspicious external resource access or unrelated triggers are present.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The manifest describes a skill that can generate UUIDs, short IDs, and nano IDs. The command surface documented in the script only supports UUID v4 generation, batch generation, validation, extraction, and an 8-character short ID; there is no nano ID command or implementation anywhere in the file.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.