We actively provide security updates for the following versions of the WinCC OA VS Code Extension:

We take security vulnerabilities seriously. If you discover a security issue, please follow these steps:

Please do not report security vulnerabilities through public GitHub issues.

Send your report via email to: [security@winccoa-extension.dev] (replace with actual email)

Or use GitHub's private vulnerability reporting:

1. Go to the repository's Security tab
2. Click "Report a vulnerability"
3. Fill out the security advisory form

• Description: Clear description of the vulnerability
• Impact: How the vulnerability could be exploited
• Reproduction: Step-by-step instructions to reproduce
• Environment: VS Code version, OS, extension version
• Proof of Concept: Code or screenshots if applicable
• Suggested Fix: If you have ideas for mitigation

Subject: [SECURITY] Potential Path Traversal in Config File Handling

Environment:
- Extension Version: 1.0.0
- VS Code Version: 1.85.0
- OS: Windows 11

Description:
The extension's config file parsing functionality may be vulnerable to path traversal attacks...

Reproduction Steps:
1. Create a malicious config file with "../" sequences
2. Place it in the WinCC OA project directory
3. Open the project in VS Code
4. Observe that files outside the project directory are accessible

Impact:
An attacker could potentially read sensitive files outside the project directory...

Suggested Fix:
Implement proper path validation and sanitization...

• Code Scanning: Automated security scanning with CodeQL
• Dependency Scanning: Regular vulnerability checks for dependencies
• Input Validation: Sanitization of all user inputs and file paths
• Sandboxing: Extension runs in VS Code's secure extension host
• Minimal Permissions: Only requests necessary VS Code API permissions

• Local Storage Only: No data transmitted to external servers
• File System Access: Limited to project directories only
• Registry Access: Read-only access to WinCC OA installation registry
• Process Execution: Restricted to WinCC OA utilities in safe directories

• Static Analysis: ESLint security rules and TypeScript strict mode
• Dependency Management: Regular updates and vulnerability scanning
• Code Reviews: All changes reviewed for security implications
• Testing: Security-focused test cases and penetration testing

The extension accesses the Windows file system for:

• Reading WinCC OA project configuration files
• Executing WinCC OA utilities (pmon, etc.)
• Parsing registry entries for project discovery

Mitigations:

• Path validation and sanitization
• Restricted to configured project directories
• Read-only access where possible

The extension may execute WinCC OA system utilities:

• pmon.exe for project management operations
• Configuration tools for project setup

Mitigations:

• Whitelist of allowed executables
• Validation of executable paths
• Sandboxed execution environment

The extension reads Windows registry for project discovery:

• HKEY_LOCAL_MACHINE\SOFTWARE\ETM\WinCC_OA
• Project installation paths and versions

Mitigations:

• Read-only registry access
• Validation of registry data
• Graceful handling of missing keys

We recognize and thank security researchers who help make our extension more secure:

No security reports have been received yet. Be the first to help us improve security!

• VS Code Extension Security Guidelines
• Extension Manifest Security
• VS Code Security Model

• OWASP Top 10
• Microsoft SDL
• Secure Coding Practices

• npm audit
• Dependabot
• Snyk

Last Updated: January 2024
Next Review: April 2024

This security policy is reviewed and updated quarterly to ensure it remains current with best practices and emerging threats.