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Security audit

MyOTP.App

Security checks for vulnerabilities and agentic risk

Overview

The skill's MyOTP.App connector behavior is coherent, but its fallback setup tells an agent to install the CLI by executing a remote script without verification.

Review this skill before installing if you are not already using the oo CLI. Prefer installing oo from an official, verifiable package or inspect and verify the installer before running it. For normal use, confirm any OTP-generating or expiry-extending action payload before execution because those actions change MyOTP.App state.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

External Script Fetching

High
Category
Supply Chain
Confidence
95% confidence
Finding

The skill instructs the agent to install software by piping a remotely fetched script directly into bash, which is a classic supply-chain and arbitrary-code-execution risk. If the install endpoint, transport, or publisher is compromised, the host running the skill could execute attacker-controlled code immediately with the user's privileges.

Content

Scanner excerpt · SKILL.md (reported line 59)May include surrounding context.

Static analysis

No suspicious patterns detected.