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Security audit

ActiveTrail

Security checks for vulnerabilities and agentic risk

Overview

The ActiveTrail actions have clear approval controls, but setup executes unverified downloads and under-discloses broader changes to agent instructions.

Review and install the CLI separately before allowing this skill to run. Consider disabling its startup skill synchronization using the control documented in the [CLI reference](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md). Understand that OOMOL mediates access to your ActiveTrail contacts, and retain approval for changes and deletions. The downloaded installers' exact behavior remains unverified.

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
98% confidence
Finding

The supplied code invokes an Oomol installer rather than performing ActiveTrail operations. Nothing in the chunk establishes that this installation supports ActiveTrail functionality. The remote script's contents are not provided, so its further effects cannot be determined.

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 checking a pinned version, trusted signature, or independently supplied digest; the PowerShell alternative uses the same fetch-and-execute pattern. Compromise of the distribution endpoint could therefore execute arbitrary code with the invoking user's permissions, although the missing-CLI condition limits when this exposure occurs.

Content

Scanner excerpt · SKILL.md (reported line 68)May include surrounding context.

The setup workflow executes remotely downloaded installation scripts without warning about their system-level effects.

Medium
Category
Output Handling
Confidence
93% confidence
Finding

The fallback setup directs execution of remote shell or PowerShell code without requiring separate user approval or explaining that installation can modify the local environment. Although conditional on a missing CLI, this expands an ActiveTrail data task into local code execution with the invoking user's permissions.

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 89)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