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Security audit

Leiga

Security checks for vulnerabilities and agentic risk

Overview

This Leiga connector skill is mostly coherent and read-focused, but its setup instructions tell users to run an unverified remote installer directly in a shell.

Review the installer path before installing. Prefer installing the oo CLI from a verified release or package manager, and avoid piping remote scripts directly into bash or PowerShell. Once installed, the Leiga operations described are read-focused and use server-side OOMOL credentials rather than exposing raw tokens to the agent.

A.I.G

Vulnerability Patterns
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • 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
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Findings (1)

T03 · Remote Payload Retrieval and Execution

Error
Location
SKILL.md:60
Finding

Unverified Remote Installer Downloaded and Executed Directly

Content
View full analysis
Remediation
View remediation
/install.sh" echo " oo-install.sh" | sha256sum --check - less oo-install.sh bash oo-install.sh ``` The release URL and checksum must come from an authenticated, publisher-controlled release process. ]]>

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
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 server, transport, installer, or upstream distribution is compromised, arbitrary code will run immediately with the user's privileges.

Content

Scanner excerpt · SKILL.md (reported line 60)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The description says to use this skill for "ANY Leiga request," which is an unusually broad activation condition and does not define boundaries or exclusions. This can overlap with many ordinary requests that merely mention Leiga, making invocation scope ambiguous.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.