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Security: dgknttr/Nupack.Server

SECURITY.md

Security Policy

Supported Versions

We actively support the following versions of Nupack Server with security updates:

Version Supported
1.0.x
< 1.0

Reporting a Vulnerability

We take the security of Nupack Server seriously. If you believe you have found a security vulnerability, please report it to us as described below.

How to Report

Please do not report security vulnerabilities through public GitHub issues.

Instead, please report security vulnerabilities using one of the following methods:

  1. GitHub Security Advisories (Preferred): Use the Security tab in the repository
  2. Email: Contact the maintainers directly (see repository for current contact information)

Include the following information in your report:

  • Type of issue (e.g. buffer overflow, SQL injection, cross-site scripting, etc.)
  • Full paths of source file(s) related to the manifestation of the issue
  • The location of the affected source code (tag/branch/commit or direct URL)
  • Any special configuration required to reproduce the issue
  • Step-by-step instructions to reproduce the issue
  • Proof-of-concept or exploit code (if possible)
  • Impact of the issue, including how an attacker might exploit the issue

What to Expect

  • Acknowledgment: We will acknowledge receipt of your vulnerability report within 48 hours.
  • Initial Assessment: We will provide an initial assessment within 5 business days.
  • Regular Updates: We will keep you informed of our progress throughout the process.
  • Resolution Timeline: We aim to resolve critical vulnerabilities within 30 days.

Disclosure Policy

  • Coordinated Disclosure: We follow a coordinated disclosure process.
  • Public Disclosure: Vulnerabilities will be publicly disclosed after a fix is available.
  • Credit: We will credit security researchers who responsibly disclose vulnerabilities.

Security Best Practices

For Deployment

  1. Use HTTPS: Always deploy behind a reverse proxy with TLS/SSL termination
  2. Authentication: Implement authentication for package uploads in production
  3. Network Security: Restrict network access to trusted sources
  4. Regular Updates: Keep the server and dependencies updated
  5. Monitoring: Implement logging and monitoring for security events

For Development

  1. Input Validation: All user inputs are validated and sanitized
  2. File Upload Security: Only .nupkg files are accepted with size limits
  3. Error Handling: Sensitive information is not exposed in error messages
  4. Dependencies: Regular security scanning of NuGet dependencies

Security Features

Current Implementation

  • Input Validation: Strict validation of uploaded packages
  • File Type Validation: Only .nupkg files are accepted
  • Size Limits: Configurable upload size limits
  • Error Handling: Secure error responses without information leakage
  • Logging: Comprehensive security event logging
  • Container Security: Non-root Docker container execution

Recommended for Production

  • 🔄 Authentication: API key or OAuth-based authentication
  • 🔄 Authorization: Role-based access control
  • 🔄 Rate Limiting: Protection against abuse
  • 🔄 HTTPS: TLS encryption for all communications
  • 🔄 WAF: Web Application Firewall protection
  • 🔄 Backup Encryption: Encrypted backup storage

Known Security Considerations

File System Storage

  • Risk: Direct file system access
  • Mitigation: Proper file permissions and access controls
  • Recommendation: Consider cloud storage for enhanced security

Package Validation

  • Risk: Malicious package content
  • Mitigation: Package signature validation (future enhancement)
  • Recommendation: Implement package scanning in CI/CD pipeline

Web UI

  • Risk: XSS vulnerabilities in package metadata display
  • Mitigation: HTML encoding and CSP headers
  • Status: Implemented in current version

Compliance

This project follows security best practices including:

  • OWASP Top 10: Protection against common web vulnerabilities
  • NIST Guidelines: Secure software development practices
  • Industry Standards: Following .NET security recommendations

Security Updates

Security updates will be:

  • Prioritized: Critical security fixes take precedence
  • Documented: Listed in CHANGELOG.md with CVE references
  • Communicated: Announced through GitHub releases and security advisories

Contact

For security-related questions or concerns:

  • GitHub Security: Use the Security tab in the repository
  • Issues: For non-sensitive security questions, open a GitHub issue with the security label
  • Response Time: We aim to acknowledge security reports within 48 hours

Acknowledgments

We thank the security research community for helping keep Nupack Server secure. Responsible disclosure helps protect all users.


Last Updated: December 2024 Next Review: March 2025

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