> 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/public-exposure/appsec-gcp-107.md).

# GCP Cloud Function is publicly accessible misconfiguration detected in code

## Rule Details

|                        |                                      |
| ---------------------- | ------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC\_GCP\_107                     |
| Category - Subcategory | Public Exposure - APIs               |
| Provider               | GCP                                  |
| Severity               | MEDIUM                               |
| Framework              | Terraform, Terraform Plan            |
| Mapped CSPM/KSPM Rule  | 9d657a8a-6c31-4bb5-8bb8-d0d55d04263b |

## Impact

This rule is checking to ensure that cloud functions are not set as public. It falls under the category of Application Security. The rationale behind this check is that making cloud functions public exposes them to potential unauthorized access. This can lead to misuse or exploitation of the functions, potentially causing disruption to services, data breaches, or other security incidents. Therefore, it is crucial to ensure that only authorized entities have access to these functions for the purpose of maintaining robust security.

## How to Fix

*Resource:* "google\_cloudfunctions\_function\_iam\_member", "google\_cloudfunctions\_function\_iam\_binding" "google\_cloudfunctions2\_function\_iam\_member", "google\_cloudfunctions2\_function\_iam\_binding"

* *Arguments:* member, members

## To fix this issue, you need to ensure that the access control is set to allow only specific services or accounts to invoke the function. \[source,go]

resource "google\_cloudfunctions2\_function\_iam\_binding" "fail" { project = google\_cloudfunctions\_function.pikey.project region = google\_cloudfunctions\_function.pikey.region cloud\_function = google\_cloudfunctions\_function.pikey.name role = "roles/viewer" members = \[

* "allUsers", ] }

***


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