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# GCP Kubernetes cluster Shielded GKE Nodes feature disabled misconfiguration detected in code

## Rule Details

|                        |                                       |
| ---------------------- | ------------------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_GCP\_71                       |
| Category - Subcategory | Kubernetes - Native Security Controls |
| Provider               | GCP                                   |
| Severity               | LOW                                   |
| Framework              | Terraform, Terraform Plan             |
| Mapped CSPM/KSPM Rule  | 706e0406-3a74-4c5b-b4ef-7a9392d42733  |

## Impact

Shielded GKE Nodes provides verifiable integrity via secure boot, virtual trusted platform module (vTPM)-enabled measured boot, and integrity monitoring. Shielded GKE nodes protects clusters against boot- or kernel-level malware or rootkits which persist beyond infected OS. Shielded GKE nodes run firmware which is signed and verified using Google's Certificate Authority, ensuring that the nodes' firmware is unmodified and establishing the root of trust for Secure Boot. GKE node identity is strongly protected via virtual Trusted Platform Module (vTPM) and verified remotely by the master node before the node joins the cluster. Lastly, GKE node integrity (i.e., boot sequence and kernel) is measured and can be monitored and verified remotely.

## How to Fix

*Resource:* google\_container\_cluster

* *Arguments:* enable\_shielded\_nodes \[source,go]

***

resource "google\_container\_cluster" "success" { name = var.name location = var.location initial\_node\_count = 1 project = data.google\_project.project.name

* enable\_shielded\_nodes = true }

## ", }


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