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Security audit

Netstat

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed, small network-diagnostics wrapper with no evidence of hidden execution, exfiltration, or privilege persistence.

Install only if you are comfortable with a local diagnostic script showing network/socket information and creating a small per-user data directory under ~/.local/share/netstat.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Whitespace Padding

Medium
Category
Prompt Injection
Confidence
80% confidence
Finding

Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.

Content

Scanner excerpt · scripts/script.sh (reported line 9)May include surrounding context.

sh
DATA_DIR="$HOME/.local/share/netstat"
mkdir -p "$DATA_DIR"

#
#
#
#

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
88% confidence
Finding

This code writes to the user's filesystem by creating $HOME/.local/share/netstat, but the script provides no comment, help text, or other user-facing disclosure that it will create a persistent directory. For code files, filesystem writes should have some visible warning or explanation unless clearly communicated as part of the skill's stated behavior.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.