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Security audit

BlazeMeter Functional

Security checks for vulnerabilities and agentic risk

Overview

The BlazeMeter reads fit the stated purpose, but automatic installation and undisclosed changes to other agent skills need review.

Review and approve a specific CLI release before allowing automatic setup, and confirm you trust OOMOL to mediate the connected account. Current CLI documentation provides OO_SKILLS_SYNC_DISABLED=1 to prevent startup writes to agent skill directories; verify support in your chosen release. [Publisher controls](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md#environment-variables). The remote installers could not be inspected, so their exact changes remain uncertain.

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
99% confidence
Finding

The declared purpose is reading BlazeMeter Functional data, whereas the supplied command executes an external installer. Nothing in the chunk establishes that this installer supports the declared functionality. Remote script execution is a materially different, undeclared capability; the downloaded script's further behavior cannot be determined from the supplied code.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
99% confidence
Finding

Piping a mutable remote installation script directly into bash executes its contents without version pinning or integrity verification. If the distribution endpoint or its publishing infrastructure is compromised, the installer can execute attacker-controlled commands with the user's permissions; HTTPS alone does not protect against such compromise. The documented dependency explains the download's purpose but does not remove this supply-chain risk.

Content

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

The setup workflow executes remotely downloaded installation scripts without warning about their system-level effects.

Medium
Category
Output Handling
Confidence
97% confidence
Finding

When the CLI is missing, the setup instructions direct the agent to execute downloaded shell or PowerShell code without first obtaining explicit installation approval or explaining host-level effects. This expands a read-only data task into arbitrary code execution with the invoking user's permissions; conditional execution limits exposure but does not establish user consent or script integrity.

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