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Security audit

Ozon

Security checks for vulnerabilities and agentic risk

Overview

The Ozon features fit the stated purpose, but setup executes downloaded code without clear user approval or integrity checks.

Review and approve CLI installation separately before allowing setup to run. Check its bundled-skill installation behavior, and limit the connected Ozon account to needed read permissions. OOMOL mediates access to seller data. The remote installer payloads were unavailable for inspection, so their exact local changes 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 command executes a remote installer rather than searching or reading Ozon data. Although dependency installation can be a supporting implementation detail, the supplied chunk establishes no connection between this installer and the declared Ozon functionality. The remote script's contents and any further effects are not available for assessment.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a remotely fetched script directly into bash executes whatever the endpoint returns with the invoking user's privileges, without a pinned version or independent integrity verification. A compromised distribution endpoint could therefore expose local files and credentials or enable persistent changes; HTTPS and the legitimate setup purpose do not eliminate this supply-chain risk. The Windows download-and-evaluate command has the same underlying weakness.

Content

Scanner excerpt · SKILL.md (reported line 61)May include surrounding context.

The setup workflow executes downloaded installer scripts without warning the user about remote code execution and local system changes.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The missing-CLI fallback instructs the agent to execute an installer without first explaining its local effects or obtaining explicit installation approval. A request to read Ozon data does not inherently authorize executing downloaded software or modifying the local environment, although the conditional fallback reduces exposure.

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 82)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