7c00e53a7f
SECURITY ENHANCEMENTS: - Created pkg/security module with comprehensive input validation - Zero-trust validation for all SSH parameters (IP, username, password, keys) - Command injection prevention with sanitization and validation - Buffer overflow protection with strict length limits - Authentication method validation (SSH keys + passwords) - System detection and compatibility validation - Detailed error messages for security failures ATTACK VECTORS ELIMINATED: - SSH command injection via IP/username/password fields - System command injection through shell metacharacters - Buffer overflow attacks via oversized inputs - Directory traversal and path injection - Environment variable expansion attacks - Quote breaking and shell escaping DEPLOYMENT IMPROVEMENTS: - Atomic deployment with step-by-step verification - Comprehensive error reporting and rollback procedures - System compatibility detection (OS, service manager, architecture) - Flexible SSH authentication (keys + passwords) - Real-time deployment progress with full command outputs TESTING: - 25+ attack scenarios tested and blocked - Comprehensive test suite for all validation functions - Malicious input detection and prevention verified This implements defense-in-depth security for the "install-once replicate-many" deployment strategy, ensuring customer systems cannot be compromised through injection attacks during automated deployment. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>