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Security audit

Make

Security checks for vulnerabilities and agentic risk

Overview

The Make workflow has sensible approval controls, but its setup instructs the agent to execute unverified downloaded software without separate approval.

Review and approve CLI installation separately before allowing setup. Prefer a verified release and review or disable automatic agent-skill synchronization; the documented OO_SKILLS_SYNC_DISABLED control addresses synchronization. Connect only the Make permissions needed and retain confirmation for scenario changes and runs. OOMOL handles the connected credentials and requests. The remote installers were unavailable for inspection, so their complete effects remain uncertain.

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 command performs remote code execution for an apparent Oomol CLI installation, with no visible Make functionality or evidence that this installation supports Make operations. This is a material mismatch, rather than an established supporting implementation detail. The remote script's further behavior cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a remotely fetched, unpinned script directly into Bash executes its contents without an integrity or authenticity check beyond HTTPS. Compromise of the distribution endpoint could lead to arbitrary code execution, credential theft, or modification of files accessible to the agent; the legitimate CLI setup context does not remove that supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 63)May include surrounding context.

The setup workflow instructs the agent to execute downloaded installation scripts without warning the user about local code execution and system changes.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The fallback instructs the agent to install software by immediately executing downloaded scripts, without first explaining local system changes or obtaining installation approval. Although conditional on the CLI being absent, a Make operation does not necessarily authorize arbitrary local installation, and a compromised installer could execute with the agent'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 84)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