T09 · Insecure Skill Coding Practices
Error
- Location
scripts/run.py:110- Finding
Unrestricted API Endpoint Can Expose Credentials and Sensitive Medical Data
- Content
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- Remediation
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Security audit
unisound-med-rx-safety-ethics
Security checks for vulnerabilities and agentic risk
Overview
The skill’s medical Q&A purpose is coherent, but it needs Review because it can send medical questions and an API key to any caller-supplied endpoint, including unsafe destinations.
Install only if you control the invocation and endpoint configuration. Do not submit identifiable patient data unless the chosen model provider is approved for that data, avoid overriding --api-url except to a trusted HTTPS endpoint, and prefer a safer secret channel than putting API keys directly in shell commands.
Vulnerability Patterns
- Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
- 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
Findings (2)
T09 · Insecure Skill Coding Practices
Warning
- Location
scripts/run.py:215- Finding
API Credential Accepted Through a Command-Line Argument
- Content
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- Remediation
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Vulnerability Patterns
- Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
- System Prompt LeakageDirect Leakage, Indirect Extraction, Tool-Based Exfiltration
- MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
- Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
- Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (4)
Undeclared Tool Scope
Medium
- Category
- MCP Least Privilege
- Confidence
- 93% confidence
- Finding
The skill documentation exposes code-backed capabilities that can read files, write files, and make network requests, but it does not declare any explicit tool scope or permissions boundary. In a medical QA/prescription-review context, this is risky because the skill may process sensitive healthcare content, and undeclared I/O or outbound network access increases the chance of unintended data access or exfiltration.
- Content
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 94% confidence
- Finding
The markdown states the skill should output answers strictly in the format required by the prompt, and the entire skill description and examples are presented as Chinese-only usage for a general-purpose Q&A skill. There is no indication that users may choose another language or that the Chinese-only constraint is justified as a region-specific requirement.
- Content
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 92% confidence
- Finding
The file-level description and all user-facing CLI/help text are written only in Chinese, and the system prompt is also fixed in Chinese. This imposes a specific language/locale expectation without presenting an explicit language choice or documenting a justified region-specific constraint.
- Content
Missing User Warnings
Medium
- Category
- Not specified by scanner
- Confidence
- 95% confidence
- Finding
The code transmits raw user-supplied medical questions to an external HTTPS API, and those questions may contain sensitive health or personal information. In a medical context, undisclosed off-host transmission materially increases privacy, compliance, and data-governance risk, especially because the tool accepts arbitrary stdin/files and forwards content verbatim.
- Content