---
title: NIFCLOUD RDB has public DB ingress security group rule
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Infrastructure as Code (IaC)
  Security > IaC Security Rules > NIFCLOUD RDB has public DB ingress security
  group rule
---

# NIFCLOUD RDB has public DB ingress security group rule

{% callout %}
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## Metadata{% #metadata %}

**Id:** `terraform-nifcloud-db-security-group-has-public-ingress-sgr` 

**Provider:** Nifcloud

**Platform:** Terraform

**Severity:** High

**Category:** Networking and Firewall

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

- [Provider Reference](https://registry.terraform.io/providers/nifcloud/nifcloud/latest/docs/resources/db_security_group#cidr_ip)

### Description{% #description %}

A `nifcloud_db_security_group` ingress security group rule allows traffic from `/0`. The rule parses `rule[].cidr_ip`, splitting on `/` and converting the suffix to a number; it flags when that numeric mask is less than 1, indicating a CIDR of `/0`. This represents an overly permissive `cidr` range that allows traffic from any IP address.

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

```terraform
resource "nifcloud_db_security_group" "negative" {
  group_name        = "example"
  availability_zone = "east-11"
  rule {
    cidr_ip = "10.0.0.0/16"
  }
}
```

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

```terraform
resource "nifcloud_db_security_group" "positive" {
  group_name        = "example"
  availability_zone = "east-11"
  rule {
    cidr_ip = "0.0.0.0/0"
  }
}
```