Test 3

Summary by Bito

This pull request introduces new modules in Python, Java, and Go that extend user management, command execution, file operations, and debugging capabilities while addressing critical security vulnerabilities. The added files implement secure practices such as parameterized queries, input validation, bcrypt hashing, and proper resource management to remediate SQL injection, command injection, path traversal, and insecure deserialization issues, significantly improving the application's overall security posture.

Detailed Changes

• Replaces insecure MD5-based password hashing with bcrypt across Python, Java, and Go modules in (sample.py, src/main/sample.java, user.go).
• Implements SecureRandom for random number generation and custom validating deserialization in Java module (src/main/sample.java).
• Enhances error handling and resource management for file operations using try-with-resources in Java module (src/main/sample.java).
• Secures hardcoded credentials by retrieving them from environment variables in Java module (src/main/sample.java).
• Resolves command injection vulnerabilities through input validation and switching to ProcessBuilder/subprocess arrays in (sample.py, src/main/sample.java, user.go).
• Fixes SQL injection issues with parameterized queries in Python and Go modules (sample.py, user.go), while noting vulnerability in Java implementation (src/main/sample.java).
• Addresses path traversal in file uploads through validation and secure path handling in (sample.py, user.go).
• Prevents information disclosure by filtering sensitive configuration in debug endpoints across all modules (sample.py, src/main/sample.java, user.go).