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Security audit

Dart

Security checks for vulnerabilities and agentic risk

Overview

The skill requires approval before changing Dart data, but its setup fallback directs the agent to run unverified internet installers without first asking.

Review and approve the CLI installation separately, including any bundled agent-skill changes, before allowing setup. Understand that OOMOL mediates access to your connected Dart account, and retain the skill's explicit approval controls for changes and deletions. Remote installer contents and exact installed behavior remain unverified; no malicious intent is 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
98% confidence
Finding

The supplied code performs remote installer execution rather than Dart data operations. Nothing in the provided chunk establishes that this installer supports the declared Dart functionality. The downloaded script's contents and any further effects are not available for assessment.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
86% confidence
Finding

The only supplied command initiates authentication, with no visible connection to Dart or implementation of its data operations. Authentication could be a supporting implementation detail, but this chunk does not establish that relationship and instead presents login as its entire behavior.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping the HTTPS response directly into Bash executes remote code with the invoking user's privileges without a pinned version or independent integrity verification. Compromise of the installer distribution path could expose local credentials and files or enable persistence; the legitimate setup purpose and conditional fallback do not remove that supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 60)May include surrounding context.

The fallback setup executes remotely downloaded installation scripts without warning about local system changes or obtaining approval.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The fallback directs the agent to execute an installer that can modify the local environment without first obtaining approval for those changes. Restricting this behavior to a missing-CLI error reduces exposure, but a Dart data-operation request does not inherently authorize installing software or executing arbitrary installer code.

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 81)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