[APIPOSTURE SYSTEM CONSOLE // DEVOPS AUDIT MATRIX] • TARGET: API DATA DEFENSE & INPUT VALIDATION CONTROLS | STATUS: ACTION REQUIRED
1. Positive Schema Enforcement & Validation
Validate all incoming payload structures directly at the ingress proxy using strict, machine-readable definitions.
[ ] OpenAPI Spec Interception: Configure the API gateway to synchronously validate incoming JSON/XML payloads against runtime OpenAPI 3.x specifications, dropping undefined fields immediately.
[ ] GraphQL Query Introspection & Depth Limits: Disable public GraphQL introspection queries on production endpoints and implement tight query depth and complexity constraints at the ingress proxy layer.
[ ] Mass Assignment Prevention: Enforce precise internal data-transfer object (DTO) parameters at the service boundary to block client modification of sensitive internal object tracking keys.
2. Strict Content-Type & Header Whitelisting
Enforce rigid media-type boundaries at the load balancer to prevent arbitrary payload execution attacks.
[ ] Explicit Header Verification: Deploy edge routing rules that instantly reject any state-changing requests (POST/PUT/PATCH) lacking an explicit, approved Content-Type header value.
[ ] Accept Header Conformance: Enforce matching validation rules checking incoming Accept headers against supported outbound downstream service representation configurations.
3. Injection Defense via Database Parameterization
Isolate untrusted data inputs from backend database command interpreters across all computing tiers.
[ ] Universal Query Parameterization: Audit microservice data-access infrastructure layers to ensure absolute utilization of parameterized prepared statements, completely blocking raw text concatenation.
[ ] NoSQL Object Sanitization: Enforce type-casting frameworks across unstructured data layer brokers to prevent input parameters from introducing active MongoDB/Redis database logic command modifiers.
4. Context-Aware Output Encoding & Content Isolation
Protect consumer runtimes by neutralizing structural payloads emitted via downstream API response bodies.
[ ] Context-Specific Encoding Policies: Enforce absolute string neutralization and HTML/JavaScript context encoding within the internal proxy view-engine whenever text values are processed for external rendering.
[ ] Anti-Sniffing & Security Header Injection: Configure ingress rules to inject a hard X-Content-Type-Options: nosniff directive into all public responses, preventing down-level client browsers from executing string structures as scripts.
