> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/appsec-rules/iac-security/compute/appsec-gcp-68.md).

# 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 } }

***


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://cortex-docs.paloaltonetworks.com/appsec-rules/iac-security/compute/appsec-gcp-68.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.