# Source: https://docs.datadoghq.com/security/code_security/iac_security/iac_rules/k8s/insecure_bind_address_set.md

---
title: Insecure bind address set
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Infrastructure as Code (IaC)
  Security > IaC Security Rules > Insecure bind address set
---

# Insecure bind address set

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

{% alert level="danger" %}
This product is not supported for your selected [Datadog site](https://docs.datadoghq.com/getting_started/site). ().
{% /alert %}

{% /callout %}

## Metadata{% #metadata %}

**Id:** `b9380fd3-5ffe-4d10-9290-13e18e71eee1`

**Cloud Provider:** Kubernetes

**Platform:** Kubernetes

**Severity:** High

**Category:** Networking and Firewall

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

- [Provider Reference](https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/)

### Description{% #description %}

When using `kube-apiserver`, the `--insecure-bind-address` flag should not be set. This flag causes the API server to listen on an unauthenticated HTTP endpoint, bypassing TLS and potentially exposing the API to unauthenticated access. This rule inspects the `command` fields of `containers` and `initContainers` for invocations of `kube-apiserver` and flags that start with `--insecure-bind-address`.

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

```yaml
apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
  restartPolicy: OnFailure
```

```yaml
apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
      args: []
  restartPolicy: OnFailure
```

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

```yaml
apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
      args: ["--insecure-bind-address=127.0.0.1"]
  restartPolicy: OnFailure
```

```yaml
apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver", "--insecure-bind-address=127.0.0.1"]
  restartPolicy: OnFailure
```