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# GCP Kubernetes cluster shielded GKE node with Secure Boot disabled misconfiguration detected in code

## Rule Details

|                        |                                       |
| ---------------------- | ------------------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_GCP\_68                       |
| Category - Subcategory | Kubernetes - Native Security Controls |
| Provider               | GCP                                   |
| Severity               | LOW                                   |
| Framework              | Terraform, Terraform Plan             |
| Mapped CSPM/KSPM Rule  | f092a573-b0f8-4f02-95bb-85c101e1c005  |

## Impact

Enable Secure Boot for Shielded GKE Nodes to verify the digital signature of node boot components. An attacker may seek to alter boot components to persist malware or root kits during system initialization. Secure Boot helps ensure that the system only runs authentic software by verifying the digital signature of all boot components, and halting the boot process if signature verification fails.

## How to Fix

*Resource:* google\_container\_cluster / google\_container\_node\_pool

* *Arguments:* node\_config.shielded\_instance\_config.enable\_secure\_boot \[source,go]

***

resource "google\_container\_cluster" "success" { name = var.name

... node\_config { workload\_metadata\_config { node\_metadata = "GKE\_METADATA\_SERVER" } shielded\_instance\_config {

* enable\_secure\_boot = false } }

***


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