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Security audit

Refiner

Security checks for vulnerabilities and agentic risk

Overview

The skill is a coherent Refiner connector helper with disclosed read/write capabilities and user-confirmation rules, though users should be cautious with its optional CLI installer command.

Install only if you are comfortable using OOMOL as the intermediary for your Refiner account. Confirm payloads before any write or destructive action, and review or verify the oo CLI installer rather than blindly running pipe-to-shell commands.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

External Script Fetching

High
Category
Supply Chain
Confidence
97% confidence
Finding

The skill instructs users to install software by piping a remotely fetched script directly into a shell (curl ... | bash). This creates a supply-chain and remote code execution risk: if the install endpoint, transport, or hosting is compromised, arbitrary code will run immediately on the user's machine with the user's privileges.

Content

Scanner excerpt · SKILL.md (reported line 66)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description says to use this skill for "ANY Refiner request" involving reading, creating, updating, and deleting data. This is a very broad trigger with no negative examples or narrower constraints, which could overlap with many routine mentions of Refiner and lead to over-invocation.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.