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Security audit

RedFoxHub

Security checks for vulnerabilities and agentic risk

Overview

The RedFoxHub integration is coherent, but its automatic setup can execute changing remote code and introduce persistent agent skills without clearly explaining those effects.

Review and install the CLI separately before using this skill, rather than allowing automatic download-and-execute setup. Consider disabling managed-skill synchronization, documented through OO_SKILLS_SYNC_DISABLED, if you do not want additional agent skills installed. Connect only the intended account and review task payloads and charges. The remote installers and service implementations were not audited; the review concerns setup control and persistent changes, with no artifact-backed evidence of malicious intent.

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
96% confidence
Finding

The supplied chunk performs no visible RedFoxHub operations; its sole action is downloading and executing an external installer. Although installation can be a supporting implementation detail, nothing supplied establishes this installer as a RedFoxHub dependency. The remote script's contents and any further effects 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 an HTTPS download directly into bash executes whatever the endpoint currently returns without version pinning or independent integrity verification. A compromised distribution endpoint or altered installer could execute arbitrary code with the agent's local permissions; the PowerShell installation alternative has the same underlying risk.

Content

Scanner excerpt · SKILL.md (reported line 217)May include surrounding context.

Fallback setup executes downloaded installation scripts without warning about local system changes or third-party code execution.

Medium
Category
Output Handling
Confidence
92% confidence
Finding

The fallback directs the agent to execute third-party installation scripts when the CLI is missing without explicitly obtaining approval for local software installation. Although this is a legitimate dependency setup step, it crosses from remote API operations into local code execution and can modify files accessible to the executing account.

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 238)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