CompTIA Security+ Study Guide

scripts/security_scan.py """Basic security configuration scanner.""" import os import json from typing import Dict, List def check_file_permissions(paths: List[str]) -> List[Dict]: """Check for overly permissive file permissions.""" findings = [] for path in paths: if os.path.exists(path): mode = oct(os.stat(path).st_mode)[-3:] if int(mode[2]) > 0: # World-readable/writable findings.append({ "severity": "HIGH", "path": path, "current_mode": mode, "recommendation": "Remove world permissions: chmod o-rwx" }) return findings def check_env_secrets(env_file: str = ".env") -> List[Dict]: """Check for potential secrets in environment files.""" sensitive_patterns = ["PASSWORD", "SECRET", "TOKEN", "KEY", "CREDENTIAL"] findings = [] if os.path.exists(env_file): with open(env_file) as f: for i, line in enumerate(f, 1): line = line.strip() if "=" in line and not line.startswith("#"): key = line.split("=")[0].upper() if any(p in key for p in sensitive_patterns): findings.append({ "severity": "MEDIUM", "file": env_file, "line": i, "key": key, "recommendation": "Use a secrets manager instead of .env files" }) return findings if __name__ == "__main__": print("Running security scan...") results = { "file_permissions": check_file_permissions([".env", "config.yaml", "secrets/"]), "env_secrets": check_env_secrets(), } print(json.dumps(results, indent=2)) # ... 1 more lines ...