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Security audit

Osop Report

Security checks for vulnerabilities and agentic risk

Overview

This skill coherently converts OSOP workflow files into a local HTML report, with only ordinary file read/write behavior for that purpose.

Before installing, be aware that the skill needs to read OSOP workflow/log files and write an HTML report file. Use it on files you intend to summarize, and review why ~/.osop/config.yaml is listed in metadata if your OSOP config contains sensitive settings.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • 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
Findings (1)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
86% confidence
Finding

The skill clearly instructs reading input files and saving an HTML report next to the source file, which requires file read/write capability, but it does not declare an explicit tool scope such as permissions or allowed-tools. This creates a trust and containment problem: the runtime may grant broader filesystem access than users expect, increasing the chance of unintended file access or overwrite if arguments or fallback file discovery behave unexpectedly.

Content

No source excerpt is available for this finding.