ClawHub
Back to skill

Security audit

Google Docs

Security checks for vulnerabilities and agentic risk

Overview

This Google Docs skill is mostly coherent, but its setup path tells users to execute remote installer scripts directly.

Review the setup instructions before installing. Prefer installing the oo CLI through a verified package or signed release path, and confirm any Google Docs write or destructive action before allowing it to run.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The skill instructs users to install software via curl ... | bash, which executes a remotely fetched script without prior verification, pinning, or integrity checking. If the distribution endpoint, transport, DNS, or hosting account is compromised, this can lead to arbitrary code execution on the user's machine under their account.

Content

Scanner excerpt · SKILL.md (reported line 86)May include surrounding context.

Context-Inappropriate Capability

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The manifest and documentation present this as a Google Docs skill for handling Google Docs requests. However, list_spreadsheet_charts operates on Google Sheets spreadsheets, which is a separate product and capability not justified by the stated purpose except for a secondary embedding use case mentioned inline.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.