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Adding check for SSL load balancers
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jonjozwiak
109
checks/check_extra793
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109
checks/check_extra793
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@@ -0,0 +1,109 @@
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#!/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_extra793="7.93"
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CHECK_TITLE_extra793="[extra793] Check if Elastic Load Balancers have SSL listeners (Not Scored) (Not part of CIS benchmark)"
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CHECK_SCORED_extra793="NOT_SCORED"
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CHECK_TYPE_extra793="EXTRA"
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CHECK_ASFF_RESOURCE_TYPE_extra793="AwsElbLoadBalancer"
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CHECK_ALTERNATE_check793="extra793"
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extra793(){
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# "Check if Elastic Load Balancers have encrypted listeners (Not Scored) (Not part of CIS benchmark)"
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for regx in $REGIONS; do
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LIST_OF_ELBS=$($AWSCLI elb describe-load-balancers $PROFILE_OPT --region $regx --query 'LoadBalancerDescriptions[*].LoadBalancerName' --output text|xargs -n1)
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LIST_OF_ELBSV2=$($AWSCLI elbv2 describe-load-balancers $PROFILE_OPT --region $regx --query 'LoadBalancers[?(Type == `application`)].LoadBalancerArn' --output text|xargs -n1)
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if [[ $LIST_OF_ELBS || $LIST_OF_ELBSV2 ]]; then
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if [[ $LIST_OF_ELBS ]]; then
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ENCRYPTEDPROTOCOLS=("HTTPS" "SSL")
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for elb in $LIST_OF_ELBS; do
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ELB_PROTOCOLS=$($AWSCLI elb describe-load-balancers $PROFILE_OPT --region $regx --load-balancer-name $elb --query "LoadBalancerDescriptions[0].ListenerDescriptions[*].Listener.Protocol" --output text)
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passed=true
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potential_redirect=false
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for protocol in $ELB_PROTOCOLS; do
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if array_contains ENCRYPTEDPROTOCOLS "$protocol"; then
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continue
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else
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# Check if both HTTP and HTTPS in use
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if [[ $(echo $ELB_PROTOCOLS | grep HTTPS) ]]; then
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potential_redirect=true
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fi
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passed=false
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fi
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done
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if $passed; then
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textPass "$regx: $elb has encrypted listeners" "$regx"
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else
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if $potential_redirect; then
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textInfo "$regx: $elb has both encrypted and non-encrypted listeners" "$regx"
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else
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textFail "$regx: $elb has non-encrypted listeners" "$regx"
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fi
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fi
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done
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fi
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if [[ $LIST_OF_ELBSV2 ]]; then
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for elbarn in $LIST_OF_ELBSV2; do
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https_only=true
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redirect_rule=false
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elbname=$(echo $elbarn | awk -F 'loadbalancer/app/' '{print $2}' | awk -F '/' '{print $1}')
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ELBV2_LISTENERS=$($AWSCLI elbv2 describe-listeners $PROFILE_OPT --region $regx --load-balancer-arn $elbarn --query "Listeners[*]")
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ELBV2_PROTOCOLS=$(echo $ELBV2_LISTENERS | jq -r '.[].Protocol')
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if [[ $(echo $ELBV2_PROTOCOLS | grep HTTPS) ]]; then
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for line in $(echo $ELBV2_LISTENERS | jq -r '.[] | .Protocol + "," + .ListenerArn'); do
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protocol=$(echo $line | awk -F ',' '{print $1}')
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listenerArn=$(echo $line | awk -F ',' '{print $2}')
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if [[ $protocol == "HTTP" ]]; then
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https_only=false
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# Check for redirect rule
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ELBV2_RULES=$($AWSCLI elbv2 describe-rules $PROFILE_OPT --region $regx --listener-arn $listenerArn --query 'Rules[]')
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if [[ $(echo $ELBV2_RULES | jq -r '.[].Actions[].RedirectConfig.Protocol' | grep HTTPS) ]]; then
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redirect_rule=true
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fi
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fi
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done
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if $https_only; then
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textPass "$regx: $elbname has HTTPS listeners only" "$regx"
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else
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if $redirect_rule; then
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textInfo "$regx: $elbname has HTTP listener that redirects to HTTPS" "$regx"
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else
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textFail "$regx: $elbname has non-encrypted listeners" "$regx"
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fi
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fi
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else
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textFail "$regx: $elbname has non-encrypted listeners" "$regx"
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fi
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done
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fi
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else
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textInfo "$regx: No ELBs found" "$regx"
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fi
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done
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}
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array_contains () {
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local array="$1[@]"
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local seeking=$2
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local in=1
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for element in "${!array}"; do
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if [[ $element == "$seeking" ]]; then
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in=0
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break
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fi
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done
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return $in
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}
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@@ -15,7 +15,7 @@ GROUP_ID[7]='extras'
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GROUP_NUMBER[7]='7.0'
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GROUP_TITLE[7]='Extras - all non CIS specific checks - [extras] ****************'
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GROUP_RUN_BY_DEFAULT[7]='Y' # run it when execute_all is called
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GROUP_CHECKS[7]='extra71,extra72,extra73,extra74,extra75,extra76,extra77,extra78,extra79,extra710,extra711,extra712,extra713,extra714,extra715,extra716,extra717,extra718,extra719,extra720,extra721,extra722,extra723,extra724,extra725,extra726,extra727,extra728,extra729,extra730,extra731,extra732,extra733,extra734,extra735,extra736,extra737,extra738,extra739,extra740,extra741,extra742,extra743,extra744,extra745,extra746,extra747,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra756,extra757,extra758,extra761,extra762,extra763,extra764,extra765,extra767,extra768,extra769,extra770,extra771,extra772,extra773,extra774,extra775,extra776,extra777,extra778,extra779,extra780,extra781,extra782,extra783,extra784,extra785,extra786,extra787,extra788,extra791,extra792'
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GROUP_CHECKS[7]='extra71,extra72,extra73,extra74,extra75,extra76,extra77,extra78,extra79,extra710,extra711,extra712,extra713,extra714,extra715,extra716,extra717,extra718,extra719,extra720,extra721,extra722,extra723,extra724,extra725,extra726,extra727,extra728,extra729,extra730,extra731,extra732,extra733,extra734,extra735,extra736,extra737,extra738,extra739,extra740,extra741,extra742,extra743,extra744,extra745,extra746,extra747,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra756,extra757,extra758,extra761,extra762,extra763,extra764,extra765,extra767,extra768,extra769,extra770,extra771,extra772,extra773,extra774,extra775,extra776,extra777,extra778,extra779,extra780,extra781,extra782,extra783,extra784,extra785,extra786,extra787,extra788,extra791,extra792,extra793'
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# Extras 759 and 760 (lambda variables and code secrets finder are not included)
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# to run detect-secrets use `./prowler -g secrets`
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