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Security audit

Handelsregister AI

Security checks for vulnerabilities and agentic risk

Overview

The company-search workflow is coherent, but its setup can execute unchecked downloads and introduce additional agent skills without clearly explaining those changes.

Review the CLI setup before installing. Prefer a separately reviewed, version-pinned installation and require approval before executing downloaded installers. To prevent automatic changes to other agents' skills, set OO_SKILLS_SYNC_DISABLED=1 for CLI invocations, as documented upstream. Queries use OOMOL and Handelsregister AI, and enrichment may incur charges. The exact downloaded installer remains unverified.

A.I.G

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

SkillSpector

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 code contains no Handelsregister AI search or reading behavior. Instead, it executes an installer from cli.oomol.com. Although dependency installation can be a supporting implementation detail, the supplied content does not establish that this installer is a dependency of the declared service. The remote script's contents and resulting system changes 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 response directly into Bash executes mutable remote code without a review or integrity-verification step; the PowerShell alternative has the same weakness. The domain is relevant to the documented dependency, but compromise of its distribution infrastructure could still lead to code execution and access to files or credentials available to the agent.

Content

Scanner excerpt · SKILL.md (reported line 56)May include surrounding context.

The fallback setup executes downloaded installer scripts without warning about system changes or requesting approval.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

The fallback directs the agent to install software when the CLI is absent without first obtaining approval for local system changes. Although limited to a setup failure, this expands a company-data lookup into execution of downloaded code with the agent's local privileges.

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 77)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