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Security audit

L2S

Security checks for vulnerabilities and agentic risk

Overview

This L2S skill is mostly purpose-aligned, but its fallback install step tells users to execute a remote installer script directly, which warrants review before use.

Review the oo CLI installer source and prefer a verified installation method before using this skill. After installation, use it only with an OOMOL/L2S account you trust, and confirm exact payloads before creating or updating shortened URLs.

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 users to install the CLI by piping a remotely fetched script directly into a shell (curl ... | bash), which creates a supply-chain and remote code execution risk if the install endpoint or transport path is compromised. In this skill context, the danger is elevated because the instruction is presented as an operational fallback inside a tool workflow, making it more likely to be followed automatically or without scrutiny.

Content

Scanner excerpt · SKILL.md (reported line 57)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 L2S request," including reading, creating, and updating data. That activation scope is broad and lacks limiting conditions or negative examples, which can cause unintended invocation whenever L2S is mentioned.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.