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Security audit

Ringover

Security checks for vulnerabilities and agentic risk

Overview

The Ringover features fit the stated purpose, but the dependency setup can execute unchecked downloads and make undisclosed changes to other agents’ skills.

Review and approve the CLI installation separately, using a verified version. Before running it, consider setting OO_SKILLS_SYNC_DISABLED=1 to prevent startup changes to agent skills, as documented in the [CLI settings](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md#environment-variables). Use limited Ringover permissions and understand that OOMOL processes the connector requests. The exact remote installer payload remains 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 code performs no visible Ringover searches or data reads. Its sole action is executing an Oomol-hosted installer, which can modify the local environment. Nothing in the supplied chunk establishes this installation as a supporting implementation detail for Ringover access. The installer's further behavior cannot be determined from this snippet.

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 whatever the installer endpoint serves without pinning or verifying the artifact. Compromise of the distribution infrastructure could therefore lead to arbitrary code execution and access to local data under the invoking account; HTTPS does not protect against a compromised publisher or endpoint. This overlaps with SQP-2 rather than representing an independent attack path.

Content

Scanner excerpt · SKILL.md (reported line 67)May include surrounding context.

Fallback installation executes downloaded scripts without a system-integrity warning.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

The fallback directs execution of downloaded shell or PowerShell scripts without requiring integrity verification or explicit approval for software installation. Although this is a legitimate dependency setup path and only applies when the CLI is missing, it can execute compromised installer content with the invoking user's permissions and modify the local system.

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 88)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