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Security audit

Iperf

Security checks for vulnerabilities and agentic risk

Overview

This skill is a low-risk local reference tool that prints static iperf-themed help text and does not access credentials, network services, or persistent system state.

Install only if you want a static local iperf-themed reference helper. Do not expect it to run real iperf tests or provide complete authoritative iperf documentation; review the generic guidance before relying on it operationally.

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

Tp4

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

The code does not perform any iperf operations; it only echoes canned text for various help-like subcommands. Given the declared purpose is simply "iperf," the reasonable expectation is a skill related to the actual iperf tool or its functionality. Instead, this is a documentation/reference wrapper with generic, largely placeholder content. That is a materially different primary purpose, so this should be flagged as a mismatch.

Content

No source excerpt is available for this finding.

Credential Access

High
Category
Privilege Escalation
Confidence
70% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · scripts/script.sh (reported line 64)May include surrounding context.

sh
## Prerequisites
- Basic understanding of devtools concepts
- Required tools and access credentials
- System meeting minimum requirements

## Installation

Description-Behavior Mismatch

Low
Category
Not specified by scanner
Confidence
94% confidence
Finding

The manifest description is only "iperf," which implies an iperf-related skill but does not describe that this code merely prints canned documentation and guidance text. The implementation performs no iperf execution, testing, or interaction; it acts as a local reference CLI.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Low
Category
Not specified by scanner
Confidence
88% confidence
Finding

The help text says iperf v$VERSION, which suggests the displayed help will include the current version number. Because the heredoc delimiter is single-quoted, $VERSION is not expanded and the literal string is shown instead, contradicting the apparent intent of the inline documentation.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.