Back to skill

Security audit

Intercom

Security checks for vulnerabilities and agentic risk

Overview

The Intercom workflow has clear safeguards, but setup can automatically execute an unverified remote installer.

Review and verify the CLI installer before allowing setup to execute it. OOMOL mediates access to your Intercom account and customer data; check the permissions you grant. The skill explicitly requires approval for account changes and destructive actions. The external installer and hosted connector were not fully assessed.

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
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (3)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
95% confidence
Finding

The visible behavior installs software from Oomol rather than interacting with Intercom. Dependency installation can be a supporting implementation detail, but the supplied chunk provides no evidence that this installer supports the declared purpose. The downloaded script's contents and further effects are not available for assessment.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The setup instructions pipe a mutable remote script directly into bash without verifying its integrity or reviewing its contents; the PowerShell alternative has the same issue. A compromised installer endpoint or release pipeline could execute arbitrary code with the agent's local privileges and access local secrets or files. Restricting installation to a missing-CLI error reduces exposure but does not establish trust in the downloaded code.

Content

Scanner excerpt · SKILL.md (reported line 78)May include surrounding context.

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 99)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