Back to skill

Security audit

Google Analytics

Security checks for vulnerabilities and agentic risk

Overview

The Analytics workflow has clear safeguards, but missing-tool setup executes unverified downloaded software without a separate approval step.

Review and approve CLI installation separately, preferably using a verified release. Review its automatic agent-skill synchronization; the [command reference](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md#environment-variables) documents an opt-out. Connect only the intended Analytics account and retain confirmation before changes or deletions. External installers and hosted connector behavior remain outside this artifact review.

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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The supplied code performs remote installer execution rather than a Google Analytics operation. Nothing in the chunk establishes that this installation is a supporting dependency for the declared purpose. The downloaded script's contents are not supplied, so its further behavior cannot be determined.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a remotely fetched installer directly into bash executes mutable network-supplied code without version pinning, integrity verification, or review; the PowerShell example has the same weakness. Compromise of the vendor's distribution infrastructure could yield arbitrary code execution with the invoking user's privileges, despite HTTPS and the legitimate dependency relationship.

Content

Scanner excerpt · SKILL.md (reported line 82)May include surrounding context.

The setup workflow executes downloaded installation scripts without warning the user about remote code execution or local system changes.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

The missing-CLI fallback directs installation through downloaded shell or PowerShell scripts without requiring user approval or explaining local system changes. Although conditional setup limits exposure, a request to operate Google Analytics does not necessarily authorize executing an installer with the agent's local privileges.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 103)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources