REAL THREATS
CRITICAL AUTHENTICATION FLAWS
• Token exposure in verbose mode (2): Token values printed in verbose output could leak to logs.
• Unauthenticated token publishing (3,4): / endpoint returns tokens without any authentication, allowing anyone to obtain valid tokens.
• Token endpoint lacks authentication (22,55): Token publishing endpoint has no auth, enabling token harvesting.
COMMAND INJECTION & SHELL VULNERABILITIES
• Shell injection via eval (6,7,8,9): Multiple shell scripts use eval with unsanitized environment variables, allowing command injection.
• SSH command injection (27): SSH command in token.sh uses variable substitution without sanitization.
• Command injection via os.Args (28): Daemon.go manipulates os.Args without proper validation.
INSECURE DATA HANDLING
• PII stored unencrypted (10,13): Reservation files and SQLite database store MACs, IPs, hostnames without encryption.
• No rate limiting (17,20,62): API endpoints and token validation lack rate limiting, enabling brute force and DoS.
• Non-cryptographically secure tokens (18): Tokens generated with UUIDs, not cryptographically random.
• Unbounded JSON input (11): Reservation endpoints accept unlimited JSON payloads, enabling memory exhaustion.
• No file size limits (37): Reservation writes have no size limits.
INSECURE CONFIGURATION & DEPLOYMENT
• Gin debug mode enabled (47): Debug mode exposes sensitive information.
• No TLS enforcement (48): All traffic unencrypted, exposing PII and tokens.
• No connection timeouts (49): Enables connection exhaustion attacks.
• Unix socket permissions not configured (50): Default permissions may allow unauthorized access.
• Token checking can be disabled (53): -T 0 disables all authentication.
• Missing security headers (56,57): No X-Frame-Options or CSP headers.
AUDIT & LOGGING DEFICIENCIES
• Missing audit logging (12,21,30,38,41,43,45,65): Critical operations lack audit trails for security monitoring.
• No log rotation (54): Logs can fill disk space.
INPUT VALIDATION & DOS VULNERABILITIES
• Path traversal (35): Insufficient path validation in host directory operations.
• Information disclosure (36,63): Detailed error messages reveal internal logic.
• MAC address validation insufficient (34): May not catch all malformed inputs.
• No query complexity limits (42): Database endpoints can be abused for resource exhaustion.
• Unbounded query results (14): Database queries can return unlimited results, causing memory exhaustion.
DATA GOVERNANCE ISSUES
• No consent tracking (31): No mechanism for data collection consent.
• No data retention policy (39): PII stored indefinitely.
• Missing data classification (40): No classification for sensitive fields.
• No cross-border transfer tracking (46): No mechanism to track data location.
ATTACK CHAINS
1. Unauthenticated Token Harvesting → Full System Compromise: Attacker accesses unauthenticated token endpoint (3,4,22,55) → obtains valid token → uses token to access all API endpoints → performs command injection via eval vulnerabilities (6,7,8,9) → gains shell access on server.
2. Memory Exhaustion DoS: Attacker sends unbounded JSON payloads (11) or queries returning unlimited results (14) → exhausts server memory → causes service disruption.
3. PII Data Exfiltration: Attacker accesses unencrypted SQLite database (13) or reservation files (10) → extracts all PII → combines with network sniffing (48) to capture tokens and sensitive data in transit.
VERDICT
IMMEDIATE FIXES REQUIRED:
1. Implement proper authentication on all endpoints, especially token publishing
2. Remove eval usage from shell scripts or implement strict input sanitization
3. Enable TLS encryption for all network traffic
4. Implement rate limiting on all API endpoints
5. Add audit logging for all security-relevant operations
6. Fix command injection vulnerabilities in daemon.go and shell scripts
The system has multiple critical vulnerabilities that allow unauthenticated access, command injection, and data exposure. The authentication system is fundamentally broken, allowing anyone to obtain tokens and access all functionality. This must be addressed before deployment.