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Security audit

HomeBox

Security checks for vulnerabilities and agentic risk

Overview

HomeBox changes require approval, but setup can execute unverified remote code and introduce additional agent skills without clearly explaining those effects.

Prefer an independently reviewed, version-pinned CLI installation and disable automatic skill synchronization before use. Understand that OOMOL mediates HomeBox access, and retain approval for every change or deletion. Remote installer contents and exact runtime effects 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
98% confidence
Finding

The supplied chunk performs remote script installation rather than any visible HomeBox operation. Although dependency installation can be a supporting implementation detail, this chunk provides no evidence that the Oomol installer supports the declared HomeBox functionality. The downloaded script's contents are not supplied, 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 remote installation script directly into bash executes whatever the endpoint supplies with the invoking account's privileges, without pinning or independent integrity verification. HTTPS protects transport but does not protect against compromise of the distribution endpoint or installer; the legitimate CLI dependency explains the download but does not eliminate this supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 72)May include surrounding context.

Fallback setup executes downloaded installation scripts without a system-integrity warning or user approval step.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The fallback directs the agent to install software by executing downloaded scripts without requiring explicit user approval for that local system change. Restricting setup to a missing-CLI error reduces exposure, but authorization to manage HomeBox data does not necessarily authorize executing an installer on the user's machine.

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 93)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