> 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/compute/appsec-k8s-7.md).

# Containers with NET\_RAW capability admitted misconfiguration detected in code

## Rule Details

|                        |                                                        |
| ---------------------- | ------------------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC\_K8S\_7                                         |
| Category - Subcategory | Kubernetes - Access Control                            |
| Provider               | OTHER                                                  |
| Severity               | LOW                                                    |
| Framework              | Helm, Kubernetes, Kustomize, Terraform, Terraform Plan |

## Impact

NET\_RAW is a default permissive setting in Kubernetes allowing ICMP traffic between containers and grants an application the ability to craft raw packets. In the hands of an attacker NET\_RAW can enable a wide variety of networking exploits from within the cluster.

## How to Fix

*Resource:* PodSecurityPolicy

* *Arguments:* requiredDropCapabilities (Optional) Defines the capabilities which must be dropped from containers.

These capabilities are removed from the default set, and must not be added. NET\_RAW capability is removed when the field includes it specifically, or when it includes *ALL*.

To use a *PodSecurityPolicy* resource, the requesting user or target pod’s service account must be authorized to use the policy. The preferred method is to grant access to the service account. In the following example we use *RBAC*, a standard Kubernetes authorization mode.

First, a *Role* or *ClusterRole* needs to grant access to use the desired policies.

*Kind*: ClusterRole

The *ClusterRole* is then bound to the authorized service(s):

## *Kind*: ClusterRoleBinding \[source,go]

apiVersion: policy/v1beta1 kind: PodSecurityPolicy metadata: name: spec: requiredDropCapabilities:

* -ALL or
* -NET\_RAW

***

apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: name: rules:

* apiGroups: \['policy'] resources: \['podsecuritypolicies'] verbs: \['use'] resourceNames:
*

***

apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: roleRef: kind: ClusterRole name: apiGroup: rbac.authorization.k8s.io subjects:

* kind: ServiceAccount name: namespace:

***


---

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