T09 · Insecure Skill Coding Practices
Error
- Location
scripts/jf_open_pro_ptz_control.py:108- Finding
Unrestricted API Endpoint Override Can Expose Authentication and Device Data
- Content
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- Remediation
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Security audit
jftech-open-pro-ptz-control
Security checks for vulnerabilities and agentic risk
Overview
The skill appears to be a real JF camera-control tool, but it can send sensitive camera/API credentials to any endpoint named in an environment variable.
Install only if you trust the publisher and can control the runtime environment. Set JF_ENDPOINT only to the official JF API host you intend to use, avoid running this in environments where other software can alter JF_* variables, and review the physical/device-state impact of preset, tour, mask, and PTZ commands before use.
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 (1)
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 (3)
Undeclared Tool Scope
Medium
- Category
- MCP Least Privilege
- Confidence
- 89% confidence
- Finding
The skill explicitly requires environment variables and remote API access, but it does not declare an explicit tool scope such as allowed-tools or permissions. This creates a governance gap: an agent runtime may grant broader-than-necessary access or fail to enforce least privilege, increasing the risk of unintended network use or credential exposure through overly permissive execution context.
- Content
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 92% confidence
- Finding
The skill description and all operational documentation are presented exclusively in Chinese, which effectively imposes a specific language on users. The stated 'language: python' metadata at L051 refers to implementation language, not user-facing locale choice, and there is no indication that users may choose another language or that the restriction is region-specific.
- Content
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 97% confidence
- Finding
This code file contains user-facing documentation and CLI output entirely in Chinese, beginning in the module docstring and continuing throughout the script. Under the policy rule, forcing a specific language without user opt-in is a natural-language policy violation unless the locale restriction is explicitly documented and justified, which is not present here.
- Content