Control: EKS cluster node group should be configured to restrict SSH access from 0.0.0.0/0

Description

EKS cluster node group SSH access should be restricted from internet. If you specify ec2_ssh_key, but do not specify source_security_group_ids configuration when you create an EKS Node Group, port 22 on the worker nodes is opened to the Internet (0.0.0.0/0).

Usage

Run the control in your terminal:

powerpipe control run terraform_aws_compliance.control.eks_cluster_node_group_ssh_access_from_internet

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run terraform_aws_compliance.control.eks_cluster_node_group_ssh_access_from_internet --share

SQL

This control uses a named query:

select
  address as resource,
  case
    when (attributes_std -> 'remote_access') is null then 'ok'
    when (attributes_std -> 'remote_access' ->> 'ec2_ssh_key') is not null and (attributes_std -> 'remote_access' ->> 'source_security_group_ids') is not null then 'ok'
    when (attributes_std -> 'remote_access' ->> 'ec2_ssh_key') is not null and (attributes_std -> 'remote_access' ->> 'source_security_group_ids') is null then 'alarm'
    else 'alarm'
  end status,
  split_part(address, '.', 2) || case
    when (attributes_std -> 'remote_access') is null then ' node group does not have implicit SSH access from 0.0.0.0/0'
    when (attributes_std -> 'remote_access' ->> 'ec2_ssh_key') is not null and (attributes_std -> 'remote_access' ->> 'source_security_group_ids') is not null then ' SSH access restricted to security group(s)'
    when (attributes_std -> 'remote_access' ->> 'ec2_ssh_key') is not null and (attributes_std -> 'remote_access' ->> 'source_security_group_ids') is null then ' has implicit SSH access from 0.0.0.0/0'
    else ' has implicit SSH access from 0.0.0.0/0'
    end || '.' reason
    
    , path || ':' || start_line
from
  terraform_resource
where
  type = 'aws_eks_node_group';

Control: EKS cluster node group should be configured to restrict SSH access from 0.0.0.0/0

Description

Usage

SQL

Tags