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Security audit

LinkFox

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly a disclosed LinkFox connector, but its setup instructions include running remote installer scripts directly in a shell before the user has a chance to review them.

Review the oo CLI installation path before installing. Prefer official installer documentation, checksum or signature verification, and explicit approval before any remote script is executed. Also confirm write actions carefully because the skill can operate on connected LinkFox and commerce account data.

A.I.G

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

SkillSpector

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
98% confidence
Finding

The skill instructs the agent to install software by piping a remotely fetched script directly into a shell (curl ... | bash). If the remote host, transport path, or published installer is compromised, this yields immediate arbitrary code execution in the agent's environment without integrity verification or user review.

Content

Scanner excerpt · SKILL.md (reported line 201)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

Line L003 says to use this skill for "ANY LinkFox request" and "Whenever a task involves LinkFox," which is a very broad activation rule for a markdown skill description. This lacks clear scope boundaries or negative examples, so routine mentions of LinkFox could unintentionally trigger the skill.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.