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Security audit

BlazeMeter Service Virtualization

Security checks for vulnerabilities and agentic risk

Overview

Review is needed because setup instructs the agent to execute an unverified remote installer without first requesting your approval.

Review and explicitly approve CLI installation and any bundled agent-skill changes before allowing setup. Connecting the service entrusts OOMOL with credentials and connector requests. Keep the required confirmation for template updates. The remote installers and hosted connector implementation were not verified; no artifact-backed malicious behavior was established.

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 code performs remote installer execution rather than the declared BlazeMeter data operations. No visible context establishes this installer as a supporting dependency for those operations. The downloaded script's contents and downstream 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 a remotely fetched script directly into bash executes mutable remote content with the agent process's local permissions, without a review or integrity-verification step. HTTPS protects transport but does not prevent a compromised publisher or distribution endpoint from supplying malicious code; the PowerShell fallback has the same underlying risk.

Content

Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.

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

Medium
Category
Output Handling
Confidence
93% confidence
Finding

The fallback directs the agent to install software when the CLI is missing without requiring approval for executing remote code or modifying the local environment. Limiting installation to a missing-dependency error reduces exposure, but authorization to perform a BlazeMeter operation does not necessarily authorize local software installation.

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 78)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