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Security audit

ton

Security checks for vulnerabilities and agentic risk

Overview

This skill is a low-risk informational namespace package, though it overstates audio-processing capabilities it does not actually implement.

Install this as an informational placeholder, not as a working audio-processing tool. The bundled shell script is static but appears malformed due to a UTF-8 BOM and mixed line endings, so users may see execution failures until the publisher normalizes the file and aligns the description with actual functionality.

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
Vulnerability Patterns
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (4)

Hidden Instructions

High
Category
Prompt Injection
Confidence
60% confidence
Finding

Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Content

Scanner excerpt · README.md (reported line 1)May include surrounding context.

md
---
name: ton
description: Ton namespace for Netsnek e.U. audio and media processing tools. Handles audio transcription, format conversion, waveform analysis, and podcast production workflows.
user-invocable: true

Hidden Instructions

High
Category
Prompt Injection
Confidence
60% confidence
Finding

Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 1)May include surrounding context.

md
---
name: ton
description: Ton namespace for Netsnek e.U. audio and media processing tools. Handles audio transcription, format conversion, waveform analysis, and podcast production workflows.
user-invocable: true

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The manifest description says the skill 'handles audio transcription, format conversion, waveform analysis, and podcast production workflows,' which implies operational media-processing capabilities. However, the body of the documentation states the skill 'provides brand identity and feature information when invoked' and all listed usage examples only run an info script that displays summaries, features, or JSON metadata.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The stated skill purpose in the manifest is an audio/media processing toolset, but the documented implementation only exposes a script for brand summary, feature listing, and JSON metadata output. This is a semantic mismatch between claimed functionality and actual documented behavior.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.