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Security audit

Aimfox

Security checks for vulnerabilities and agentic risk

Overview

The Aimfox workflow has clear approval controls, but its setup executes remote installers without separate consent or a clear account of lasting changes.

Review and separately approve CLI installation before use. Trusting this integration also means trusting OOMOL with the connected Aimfox account. Check the CLI's automatic skill synchronization before allowing it to modify agent settings; its [command reference](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md) documents a control to disable startup synchronization. Installer contents and live connector behavior remain 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
97% confidence
Finding

The supplied chunk runs an installer hosted by Oomol and contains no Aimfox operations or evidence connecting that installation to Aimfox functionality. This is a materially different activity, not an established supporting implementation detail. The downloaded script's contents are unavailable, so its further behavior cannot be determined.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a mutable remote installer directly into bash executes its contents with the invoking user's permissions without prior inspection or independent integrity verification. The OOMOL domain is contextually appropriate and HTTPS protects transport, but a compromised distribution endpoint or malicious installer update could still execute arbitrary code; the PowerShell example has the same weakness.

Content

Scanner excerpt · SKILL.md (reported line 65)May include surrounding context.

The fallback setup instructs the agent to execute downloaded installation scripts without warning the user about the system changes or remote-code execution.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

The fallback directs the agent to install software by immediately executing downloaded shell or PowerShell code, without requiring user approval for local system changes. Limiting setup to a missing-CLI error reduces exposure, but the write and destructive-action confirmations only cover Aimfox operations and do not explicitly protect this installation path.

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 86)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