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prowler/providers/aws/checks/eks/check_extra795
2022-05-25 16:43:54 +02:00

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#!/usr/bin/env bash
# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy
# of the License at http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distributed
# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
# CONDITIONS OF ANY KIND, either express or implied. See the License for the
# specific language governing permissions and limitations under the License.
CHECK_ID_extra795="7.95"
CHECK_TITLE_extra795="[extra795] Ensure EKS Clusters are created with Private Endpoint Enabled and Public Access Disabled"
CHECK_SCORED_extra795="NOT_SCORED"
CHECK_CIS_LEVEL_extra795="EXTRA"
CHECK_SEVERITY_extra795="High"
CHECK_ASFF_RESOURCE_TYPE_extra795="AwsEksCluster"
CHECK_ALTERNATE_check795="extra795"
CHECK_SERVICENAME_extra795="eks"
CHECK_RISK_extra795='Publicly accessible services could expose sensitive data to bad actors.'
CHECK_REMEDIATION_extra795='Enable private access to the Kubernetes API server so that all communication between your nodes and the API server stays within your VPC. Disable internet access to the API server.'
CHECK_DOC_extra795='https://docs.aws.amazon.com/eks/latest/userguide/infrastructure-security.html'
CHECK_CAF_EPIC_extra795='Infrastructure Security'
extra795(){
for regx in $REGIONS; do
CLUSTERS=$($AWSCLI eks list-clusters $PROFILE_OPT --region $regx --query 'clusters[]' --output text 2>&1)
if [[ $(echo "$CLUSTERS" | grep -E 'AccessDenied|UnauthorizedOperation|AuthorizationError') ]]; then
textInfo "$regx: Access Denied trying to list EKS clusters" "$regx"
continue
fi
if [[ $CLUSTERS ]]; then
for CLUSTER in $CLUSTERS;do
CLUSTERDEF=$($AWSCLI eks describe-cluster $PROFILE_OPT --region $regx --name $CLUSTER --query 'cluster.resourcesVpcConfig')
PUB_ENABLED=$(echo $CLUSTERDEF | jq -r '.endpointPublicAccess')
PRIV_ENABLED=$(echo $CLUSTERDEF | jq -r '.endpointPrivateAccess')
if [[ $PUB_ENABLED == "false" ]] && [[ $PRIV_ENABLED == "true" ]] ; then
textPass "$regx: Cluster endpoint access is private for EKS cluster $CLUSTER" "$regx" "$CLUSTER"
else
textFail "$regx: Cluster endpoint access is public for EKS cluster $CLUSTER" "$regx" "$CLUSTER"
fi
done
else
textInfo "$regx: No EKS clusters found" "$regx"
fi
done
}