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56 lines
3.0 KiB
Bash
56 lines
3.0 KiB
Bash
#!/usr/bin/env bash
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# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy
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# of the License at http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software distributed
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# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations under the License.
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CHECK_ID_extra7176="7.176"
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CHECK_TITLE_extra7176="[extra7176] EMR Cluster without Public IP"
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CHECK_SCORED_extra7176="NOT_SCORED"
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CHECK_CIS_LEVEL_extra7176="EXTRA"
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CHECK_SEVERITY_extra7176="Medium"
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CHECK_ASFF_TYPE_extra7176="AwsEMR"
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CHECK_ALTERNATE_check7176="extra7176"
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CHECK_SERVICENAME_extra7176="emr"
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CHECK_RISK_extra7176='EMR Cluster should not have Public IP'
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CHECK_REMEDIATION_extra7176='Only make acceptable EMR clusters public'
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CHECK_DOC_extra7176='https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-block-public-access.html'
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CHECK_CAF_EPIC_extra7176='Infrastructure Security'
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extra7176(){
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# Public EMR cluster have their DNS ending with .amazonaws.com while private ones have format of ip-xxx-xx-xx.us-east-1.compute.internal.
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for regx in ${REGIONS}; do
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# List only EMR clusters with the following states: STARTING, BOOTSTRAPPING, RUNNING, WAITING, TERMINATING
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# [NOT TERMINATED AND TERMINATED_WITH_ERRORS]
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LIST_OF_CLUSTERS=$("${AWSCLI}" emr list-clusters ${PROFILE_OPT} --region "${regx}" --query 'Clusters[?(Status.State!=`TERMINATED` && Status.State!=`TERMINATED_WITH_ERRORS`)].Id' --output text 2>&1)
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if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "${LIST_OF_CLUSTERS}"; then
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textInfo "${regx}: Access Denied trying to list clusters of emr" "${regx}"
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continue
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fi
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if [[ "${LIST_OF_CLUSTERS}" ]]
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then
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for cluster_id in ${LIST_OF_CLUSTERS}; do
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master_public_dns=$("${AWSCLI}" emr describe-cluster ${PROFILE_OPT} --cluster-id "${cluster_id}" --query 'Cluster.MasterPublicDnsName' --region "${regx}" --output text 2>&1)
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if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "${master_public_dns}"; then
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textInfo "${regx}: Access Denied trying to describe emr cluster" "${regx}" "${cluster_id}"
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continue
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fi
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if [[ $master_public_dns != None && $master_public_dns != *.internal ]];then
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textFail "${regx}: EMR Cluster ${cluster_id} has a Public IP" "${regx}" "${cluster_id}"
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else
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textPass "${regx}: EMR Cluster ${cluster_id} has not a Public IP" "${regx}" "${cluster_id}"
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fi
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done
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else
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textInfo "${regx}: No EMR Clusters found" "${regx}"
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fi
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done
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}
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