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Security audit

iTunes Search API

Security checks for vulnerabilities and agentic risk

Overview

The search workflow is coherent, but its setup can execute unverified downloads and introduce broader agent changes without clear user approval.

Review and approve CLI installation separately, and disable automatic bundled-skill synchronization unless you want changes across your agent installations. Confirm the OOMOL account and possible charges. The installer payloads and hosted connector implementation remain unverified; no malicious behavior was established.

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 (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied chunk contains only a remote installer command and performs no iTunes search or data retrieval. Nothing in the chunk establishes this installation as a supporting dependency for the declared purpose. The downloaded script's further behavior cannot be determined from the supplied code.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The supplied code performs a login operation and contains no iTunes Search API request or data-reading behavior. Nothing in the snippet establishes that this authentication is a supporting requirement for the declared purpose, so its observable behavior does not match the description.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The command pipes a mutable network response directly into bash without a pinned version, signature verification, or independent integrity check. Compromise of the distribution endpoint could execute attacker-controlled code with the invoking user's permissions; HTTPS alone does not protect against a compromised publisher or installer.

Content

Scanner excerpt · SKILL.md (reported line 56)May include surrounding context.

The setup workflow executes downloaded installation scripts without warning the user about running remote code or modifying their system.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The fallback setup instructs the agent to execute downloaded shell or PowerShell scripts without first obtaining approval for remote code execution and local system changes. Although conditional and relevant to the connector dependency, this unnecessarily expands a read-only search task into a potentially high-impact installation operation.

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 71)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