Deterministic Verification of Mandatory Transport Security Headers
A web portal omits strict transport, framing, or content-sniffing headers, leaving browsers exposed to clickjacking and protocol downgrade attacks. The verifier audits the response header matrix and generates an exact edge-injection rule.
Missing security headers weaken browser-side isolation even when backend application logic is sound. Without explicit directives for transport encryption, frame embedding, and content-type enforcement, client sessions remain vulnerable to framing overlays and script-type confusion.
1. Interception and Rule Synthesis Schematic for HDR-SEC
Verification sequence for HDR-SEC: candidate probe inspection by wire rule SEC-ZD-HDR-01, differential confirmation via witness 82f5eb1f4842ff2b, and compilation of gateway contract IMMUNE-HDR-82F5EB1F.
2. In-Path Mutation Blocking and Paired Decoy Verification (HDR-SEC)
Under rule SEC-ZD-HDR-01, header inspection runs via lightweight, non-mutating requests against the target route. The analyzer evaluates the exact directive tokens of Strict-Transport-Security, X-Frame-Options, X-Content-Type-Options, and Content-Security-Policy.
Across four testbed scenarios comparing unhardened endpoints against compliant responses, the verifier records two true positives and two true negatives with zero false alarms.
Class Identifier: HDR-SEC (missing_security_headers)
Execution Mode: Active Safe Probing (AUTO_SCAN)
Candidate Probe: HEAD /api/v1/vuln/headers/portal
Blocked Mutation: None (passive response header verification)
Stand Confusion Matrix: TP = 2, FP = 0, TN = 2, FN = 0 (FPR = 0.0%)
Wire Sandbox Rule: SEC-ZD-HDR-01
Formal Witness Hash: 82f5eb1f4842ff2b
Compiled Sentinel Rule: IMMUNE-HDR-82F5EB1F (synthesis time 20 µs)3. Automatic Synthesis of Gateway Rule IMMUNE-HDR-82F5EB1F
From witness 82f5eb1f4842ff2b, the compiler synthesizes rule IMMUNE-HDR-82F5EB1F in 20 microseconds, supplying the exact response header directives for edge proxies and mcp-sentinel.
4. Related Benchmark Classes on the INDRA Stand
INJ-SQL: Database Query InjectionINJ-CMD: Operating System Command InjectionDIR-TRV: Filesystem Path TraversalAUTH-BOLA: Broken Object Level AuthorizationSSRF-INT: Server-Side Request Forgery and Redirect BypassSEC-LEAK: Authentication Token and Secret ExposureDOS-RSRC: Computational Resource Exhaustion (Isolated Lab Mode)