Security Best Practices

This outline provides information on security best practices for developing and deploying Docker credential helpers. The information is based on Docker’s security documentation, the OWASP Top 10, and the Docker Security Best Practices repository.

Secure Coding Practices

• Input Validation and Sanitization: Validate and sanitize all user input to prevent injection attacks. OWASP
• Secure Storage: Store credentials securely using encryption and access control mechanisms.
• Error Handling: Implement robust error handling to prevent information leaks. Docker Security Best Practices
• Least Privilege: Limit the permissions of the credential helper to only what is necessary. Docker

Vulnerability Mitigation

• Regular Security Audits: Conduct regular security audits to identify and address vulnerabilities. Docker Security Best Practices
• Secure Development Practices: Use secure coding practices and tools to mitigate vulnerabilities. OWASP
• Code Review: Perform code reviews to identify security vulnerabilities. Docker Security Best Practices

Secure Deployment

• Least Privilege: Deploy the credential helper with minimal privileges. Docker
• Isolation: Isolate the credential helper from other applications to reduce attack surface. Docker Security Best Practices
• Regular Updates: Update the credential helper regularly to address security vulnerabilities. Docker Security Best Practices

Examples

• Input Validation: Using regular expressions to validate user input.
• Secure Storage: Encrypting credentials using the go-crypto/bcrypt package.
• Error Handling: Using a custom error type to track errors and log them.
• Least Privilege: Using the sudo command with specific permissions.
• Code Review: Using the gosec linter to identify security vulnerabilities.
• Isolation: Running the credential helper in a separate container.

References

• Docker Security Documentation
• OWASP Top 10
• Docker Security Best Practices