> 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-azure-145.md).

# Azure Function App doesn't use latest TLS version misconfiguration detected in code

## Rule Details

|                        |                                            |
| ---------------------- | ------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC\_AZURE\_145                         |
| Category - Subcategory | Public Exposure - Encryption And Protocols |
| Provider               | AZURE                                      |
| Severity               | LOW                                        |
| Framework              | ARM, Bicep, Terraform, Terraform Plan      |
| Mapped CSPM/KSPM Rule  | c82a5f89-cd01-4bcf-8fa3-99396a4c848d       |

## Impact

The Transport Layer Security (TLS) protocol secures transmission of data between servers and web browsers, over the Internet, using standard encryption technology. To follow security best practices and the latest PCI compliance standards, enable the latest version of TLS protocol (i.e. TLS 1.2) for all your Azure Function apps.

## How to Fix

*Resource:* azurerm\_function\_app

* *Arguments:* site\_config.min\_tls\_version \[source,go]

***

resource "azurerm\_function\_app" "pass2" { name = "test-azure-functions" location = azurerm\_resource\_group.example.location resource\_group\_name = azurerm\_resource\_group.example.name app\_service\_plan\_id = azurerm\_app\_service\_plan.example.id storage\_account\_name = azurerm\_storage\_account.example.name storage\_account\_access\_key = azurerm\_storage\_account.example.primary\_access\_key https\_only = false

## site\_config { dotnet\_framework\_version = "v4.0" scm\_type = "LocalGit" min\_tls\_version = 1.2 ftps\_state = "AllAllowed" http2\_enabled = false cors { allowed\_origins = \["\*"] } } }


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