> 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-10.md).

# Azure Network Security Group allows all traffic on SSH port 22 misconfiguration detected in code

## Rule Details

|                        |                                       |
| ---------------------- | ------------------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_AZURE\_10                     |
| Category - Subcategory | Public Exposure - Sensitive Ports     |
| Provider               | AZURE                                 |
| Severity               | LOW                                   |
| Framework              | ARM, Bicep, Terraform, Terraform Plan |
| Mapped CSPM/KSPM Rule  | 3beed53c-3f2d-47b6-bb6f-95da39ff0f26  |

## Impact

A potential security problem using SSH over the Internet is that attackers can use various brute force techniques to gain access to Azure Virtual Machines. Once the attackers gain access, they can use a virtual machine as a launch point for compromising other machines on the Azure Virtual Network. The attackers could also access and attack networked devices outside of Azure. We recommend you disable SSH access over the internet to Network Security Groups.

## How to Fix

*Resource:* azurerm\_network\_security\_rule

* *Arguments:* access + protocol + destination\_port\_range + source\_address\_prefix \[source,go]

***

resource "azurerm\_network\_security\_rule" "example" {

* access = "Allow"
* protocol = "TCP"
* destination\_port\_range = \["22" / \<port range including 22>]]
* source\_address\_prefix = "\*" / "0.0.0.0" / "/0" / "/0" / "internet" / "any" }

***


---

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