---
title: Redis cache allows non SSL connections
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Infrastructure as Code (IaC)
  Security > IaC Security Rules > Redis cache allows non SSL connections
---

# Redis cache allows non SSL connections

{% callout %}
# Important note for users on the following Datadog sites: app.ddog-gov.com, us2.ddog-gov.com

{% alert level="danger" %}
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{% /callout %}

## Metadata{% #metadata %}

**Id:** `terraform-azure-redis-cache-allows-non-ssl-connections` 

**Provider:** Azure

**Platform:** Terraform

**Severity:** Medium

**Category:** Insecure Configurations

#### Learn More{% #learn-more %}

- [Provider Reference](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/redis_cache)

### Description{% #description %}

Allowing non-SSL connections to Azure Redis Cache resources exposes sensitive data in transit to potential interception or man-in-the-middle attacks, as information exchanged between clients and the Redis service will not be encrypted. To mitigate this risk, the `enable_non_ssl_port` attribute in the Terraform resource should be set to `false`, ensuring all connections use secure TLS communication. For example:

```
resource "azurerm_redis_cache" "secure_example" {
  name                = "example-cache"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  capacity            = 2
  family              = "C"
  sku_name            = "Standard"
  enable_non_ssl_port = false
  minimum_tls_version = "1.2"

  redis_configuration {
  }
}
```

Neglecting this configuration can lead to exposure of authentication credentials and cached data, increasing the risk of data breaches and compliance violations.

## Compliant Code Examples{% #compliant-code-examples %}

```terraform
resource "azurerm_redis_cache" "negative1" {
  name                = "example-cache"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  capacity            = 2
  family              = "C"
  sku_name            = "Standard"
  enable_non_ssl_port = false
  minimum_tls_version = "1.2"

  redis_configuration {
  }
}

resource "azurerm_redis_cache" "negative2" {
  name                = "example-cache"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  capacity            = 2
  family              = "C"
  sku_name            = "Standard"
 
  minimum_tls_version = "1.2"

  redis_configuration {
  }
}
```

## Non-Compliant Code Examples{% #non-compliant-code-examples %}

```terraform
resource "azurerm_redis_cache" "positive1" {
  name                = "example-cache"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  capacity            = 2
  family              = "C"
  sku_name            = "Standard"
  enable_non_ssl_port = true
  minimum_tls_version = "1.2"

  redis_configuration {
  }
}
```