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Security audit

Nasdaq Data Link

Security checks for vulnerabilities and agentic risk

Overview

The Nasdaq workflow fits its stated purpose, but fallback setup runs unverified remote installers without clear user approval or disclosure of persistent agent changes.

Review the setup before enabling this skill. Install a verified, pinned oo release under your control and review or disable bundled-skill synchronization. OOMOL brokers authenticated requests and may charge credits. The supplied workflow shows no malicious intent, but the remote installers and hosted connector implementation were not inspected.

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 code performs remote script execution from cli.oomol.com and contains no Nasdaq Data Link functionality. Nothing supplied establishes that this installation is a supporting dependency for the declared purpose. The downloaded script's contents and further effects cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
88% confidence
Finding

The only supplied behavior is a login operation, rather than the declared Nasdaq Data Link functionality. Authentication could be a supporting implementation detail if tied to that service, but the chunk provides no such connection. The identity of oo and the authentication destination cannot be determined from the supplied code.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a live HTTPS response directly into bash executes mutable remote code without a pinned version, integrity verification, or review; the PowerShell alternative has the same weakness. Compromise of the distribution endpoint or delivery pipeline could execute attacker-controlled code with the agent process's permissions, potentially exposing local credentials and files. The documented vendor relationship makes legitimate setup plausible but does not eliminate this supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 61)May include surrounding context.

The fallback setup instructs the agent to execute a downloaded installer without warning the user about running remote code or modifying the local system.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

A missing dependency triggers instructions to execute a remote installer without first obtaining approval for local software installation. This crosses from a read-only data request into local code execution and system modification; the failure-only condition reduces exposure but does not authorize those effects.

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 82)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