Security audit

MxToolbox

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly a read-only MxToolbox connector, but its first-time setup tells users or agents to run unverified remote installer scripts.

Install only if you are comfortable using OOMOL as an intermediary for MxToolbox. Do not run the pasted curl|bash or irm|iex installer commands blindly; prefer an official, versioned installer with checksum or signature verification and approve any login or account-connection step yourself.

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 (2)

T03 · Remote Payload Retrieval and Execution

Error

Location: SKILL.md:67
Finding: Unverified Remote Shell Installer Execution
Content: View full analysis
Remediation: View remediation
.sh" echo " oo-install.sh" | sha256sum --check - less oo-install.sh bash oo-install.sh ``` The URL, version, and digest must be fixed to an authenticated release rather than dynamically supplied. ]]>

T03 · Remote Payload Retrieval and Execution

Error

Location: SKILL.md:71
Finding: Unverified Remote PowerShell Installer Execution
Content: View full analysis
Remediation: View remediation
.ps1" -OutFile ".\install.ps1" Get-FileHash ".\install.ps1" -Algorithm SHA256 Get-AuthenticodeSignature ".\install.ps1" Get-Content ".\install.ps1" & ".\install.ps1" ``` Execution should proceed only after the pinned digest and publisher signature have been validated against trusted release metadata. ]]>

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 bash, which is a classic supply-chain and remote code execution risk. If the remote endpoint, transport, or distribution pipeline is compromised, arbitrary code would run immediately on the host without verification or user review.
Content: Scanner excerpt · SKILL.md (reported line 67)May include surrounding context.

oo: command not found — install the oo CLI (other platforms: https://cli.oomol.com/install-guide.md):

bash
curl -fsSL https://cli.oomol.com/install.sh | bash # macOS / Linux

powershell

Vague Triggers

Medium

Category: Not specified by scanner
Confidence: 91% confidence
Finding: The skill description says to use this skill for "ANY MxToolbox request," which is an overly broad routing rule that can cause an agent to invoke this skill in situations where a narrower or safer tool selection policy should apply. Broad trigger phrasing increases the chance of unintended execution paths, especially because the skill includes shell-based operational guidance and setup instructions.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.