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Security audit

Prospeo

Security checks for vulnerabilities and agentic risk

Overview

The Prospeo integration fits its purpose, but its setup fallback can run unverified downloaded code without separate user approval.

Install and verify oo separately, and require approval before the agent runs either setup installer. Review the CLI's additional skill-installation behavior and send only necessary identifiers through OOMOL to Prospeo. The exact remote installer changes remain unverified; no 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 (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied chunk performs remote installer execution, not the declared Prospeo data operations. No visible integration establishes this installer as a supporting dependency for Prospeo. The downloaded script is 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
99% confidence
Finding

Piping a mutable remote installer directly into bash executes its contents without prior inspection or verification of a pinned artifact. HTTPS reduces transport interception risk but does not protect against a compromised publisher or distribution system; exploitation could expose local files, credentials, and writable resources available to the process.

Content

Scanner excerpt · SKILL.md (reported line 60)May include surrounding context.

The action workflow sends payloads to third-party services without a privacy warning.

Medium
Category
Output Handling
Confidence
90% confidence
Finding

The workflow instructs the agent to submit action payloads through OOMOL to Prospeo; enrichment inputs can include identifying person and company information. Although the connector architecture is described, the skill does not warn users that information supplied in these payloads is transmitted to external services.

Content

No source excerpt is available for this finding.

The fallback setup executes downloaded installation scripts without warning about system changes or remote-code execution.

Medium
Category
Output Handling
Confidence
97% confidence
Finding

The missing-CLI fallback directs the agent to execute downloaded shell or PowerShell code without an explicit approval step, integrity verification, or an opportunity to inspect it. Although conditional and relevant to setup, this can turn an ordinary read request into local code execution with the agent's permissions if the installer delivery path is compromised.

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 81)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