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Security audit

HigherGov

Security checks for vulnerabilities and agentic risk

Overview

The HigherGov searches are appropriately scoped, but setup can execute unverified remote installers without clear user approval.

Review and approve CLI installation separately before using this skill, including which agent hosts receive bundled skills. HigherGov requests pass through OOMOL using your connected account. The sole bundled artifact was fully inspected, but remote installers and server-side behavior remain unverified; no evidence of intentional malicious behavior was found.

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 supplied command executes an external installer and contains no HigherGov search or data-reading functionality. The declared purpose does not disclose installation or remote script execution, and the supplied code establishes no connection between this installer and HigherGov functionality. The downloaded script's contents and further effects are not shown.

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 content without a pinned version or independent integrity verification; the PowerShell example has the same weakness. Compromise of the installer hosting or release infrastructure could yield arbitrary code execution with the agent's local permissions, potentially exposing files and credentials, though the missing-CLI condition limits exposure.

Content

Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.

Setup instructs the agent to execute downloaded installation scripts without warning about system-integrity risks.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The fallback directs the agent to execute downloaded shell or PowerShell code without explaining the system changes or requiring approval for installation. Although limited to missing-CLI situations, this expands a read-oriented data task into local software installation, with potential execution of attacker-controlled code if the installer distribution 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 79)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