ClawHub
Back to skill

Security audit

Ubuntu Hardening V2

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed external API tool for generating Ubuntu hardening configurations, with privacy and deployment-review considerations but no evidence of hidden execution, persistence, or destructive behavior.

Before installing, treat this as a third-party API integration: avoid sending real user identifiers unless needed, review any generated hardening files with an administrator, and test them outside production before applying them to systems.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (5)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The example request explicitly includes tracking fields such as sessionId, userId, and timestamp that are sent to a third-party API, but the skill does not warn users that these identifiers will be transmitted off-platform. This creates a privacy and data-governance risk because operators may include user-correlated identifiers in requests without understanding that an external service will receive and potentially retain them.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
86% confidence
Finding

The skill returns a downloadUrl pointing to an external domain, confirming that generated outputs are hosted and retrieved from a third-party service. In the context of a security hardening tool, generated configurations may reveal an organization's intended defensive posture, making external transmission more sensitive than in a generic content-generation skill.

Content

Scanner excerpt · SKILL.md (reported line 107)May include surrounding context.

} }, "totalConfigurations": 3, "downloadUrl": "https://api.mkkpro.com/hardening/ubuntu-v2/cfg_9x8y7w6v5u4t3s2r/download" }

text

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 185)May include surrounding context.

md
# References

- **Kong Route:** https://api.mkkpro.com/hardening/ubuntu-v2
- **API Docs:** https://api.mkkpro.com:8129/docs

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
86% confidence
Finding

The OpenAPI description exposes a security hardening generator, which can affect system integrity by producing configuration intended to modify OS security posture. The summary and description do not include any warning about reviewing generated configurations, testing before deployment, or potential service-impacting changes.

Content

No source excerpt is available for this finding.

Vague Triggers

Low
Category
Not specified by scanner
Confidence
82% confidence
Finding

This is a manifest/config file, so vague-trigger checks apply. The description "Generate Ubuntu security hardening configuration files" states the action but does not define scope, constraints, or clear invocation conditions, which makes activation criteria ambiguous in agent/tool-selection contexts.

Content

No source excerpt is available for this finding.