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54 lines
2.8 KiB
Bash
54 lines
2.8 KiB
Bash
#!/usr/bin/env bash
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# Prowler - the handy cloud security tool (copyright 2018) 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_extra79="7.9"
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CHECK_TITLE_extra79="[extra79] Check for internet facing Elastic Load Balancers"
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CHECK_SCORED_extra79="NOT_SCORED"
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CHECK_CIS_LEVEL_extra79="EXTRA"
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CHECK_SEVERITY_extra79="Medium"
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CHECK_ASFF_RESOURCE_TYPE_extra79="AwsElbLoadBalancer"
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CHECK_ALTERNATE_extra709="extra79"
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CHECK_ALTERNATE_check79="extra79"
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CHECK_ALTERNATE_check709="extra79"
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CHECK_SERVICENAME_extra79="elb"
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CHECK_RISK_extra79='Publicly accessible load balancers could expose sensitive data to bad actors.'
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CHECK_REMEDIATION_extra79='Ensure the load balancer should be publicly accessible. If publicly exposed ensure a WAF ACL is implemented.'
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CHECK_DOC_extra79='https://docs.aws.amazon.com/waf/latest/developerguide/web-acl-associating-aws-resource.html'
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CHECK_CAF_EPIC_extra79='Data Protection'
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extra79(){
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# "Check for internet facing Elastic Load Balancers "
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for regx in $REGIONS; do
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LIST_OF_PUBLIC_ELBS=$($AWSCLI elb describe-load-balancers $PROFILE_OPT --region $regx --query 'LoadBalancerDescriptions[?Scheme == `internet-facing`].[LoadBalancerName,DNSName]' --output text 2>&1)
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if [[ $(echo "$LIST_OF_PUBLIC_ELBS" | grep AccessDenied) ]]; then
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textInfo "$regx: Access Denied Trying to describe load balancers" "$regx"
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continue
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fi
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LIST_OF_PUBLIC_ELBSV2=$($AWSCLI elbv2 describe-load-balancers $PROFILE_OPT --region $regx --query 'LoadBalancers[?Scheme == `internet-facing`].[LoadBalancerName,DNSName]' --output text 2>&1)
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if [[ $(echo "$LIST_OF_PUBLIC_ELBSV2" | grep AccessDenied) ]]; then
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textInfo "$regx: Access Denied Trying to describe load balancers" "$regx"
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continue
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fi
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LIST_OF_ALL_ELBS=$( echo $LIST_OF_PUBLIC_ELBS; echo $LIST_OF_PUBLIC_ELBSV2)
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LIST_OF_ALL_ELBS_PER_LINE=$( echo $LIST_OF_ALL_ELBS| xargs -n2 )
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if [[ $LIST_OF_ALL_ELBS ]];then
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while read -r elb;do
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ELB_NAME=$(echo $elb | awk '{ print $1; }')
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ELB_DNSNAME=$(echo $elb | awk '{ print $2; }')
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textFail "$regx: ELB: $ELB_NAME at DNS: $ELB_DNSNAME is internet-facing!" "$regx" "$ELB_NAME"
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done <<< "$LIST_OF_ALL_ELBS_PER_LINE"
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else
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textPass "$regx: no Internet Facing ELBs found" "$regx" "$ELB_NAME"
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fi
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done
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}
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