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| Vulnerability | Description | Mitigation | |---------------|-------------|------------| | | An attacker guesses a device ID (e.g., /devices/1 ) and accesses a scanner they don’t own. | Enforce authentication + per‑device authorization checks. | | Unvalidated Input (CWE‑20) | Malformed acquisition parameters can cause driver crashes or memory corruption. | Strict schema validation (JSON Schema) and whitelist acceptable values. | | Cross‑Site Request Forgery (CSRF) | A malicious site forces a logged‑in user’s browser to start a scan. | Use anti‑CSRF tokens, require explicit user interaction (e.g., a “Scan” button). | | Man‑in‑the‑Middle (MITM) on TWAIN Direct | Scanners often expose HTTP endpoints without TLS, allowing eavesdropping or command injection. | Deploy HTTPS with proper certificates; optionally use Mutual TLS for device authentication. | | Out‑of‑Date Drivers / DS | Legacy TWAIN DS may contain known buffer‑overflow bugs. | Keep device firmware and drivers up‑to‑date; prefer TWAIN Direct where possible. | | Denial‑of‑Service (DoS) | Flooding the scanner with acquisition requests can stall legitimate users. | Rate‑limit API calls, implement per‑user quotas. | dynamic web twain crack cracked