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45 lines
2.0 KiB
Bash
45 lines
2.0 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_extra731="7.31"
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CHECK_TITLE_extra731="[extra731] Check if SNS topics have policy set as Public (Not Scored) (Not part of CIS benchmark)"
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CHECK_SCORED_extra731="NOT_SCORED"
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CHECK_TYPE_extra731="EXTRA"
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CHECK_ALTERNATE_check731="extra731"
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extra731(){
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for regx in $REGIONS; do
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LIST_SNS=$($AWSCLI sns list-topics $PROFILE_OPT --region $regx --query Topics --output text |grep -v ^None)
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if [[ $LIST_SNS ]]; then
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for topic in $LIST_SNS; do
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# check if the policy has Principal as *
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SNS_TO_CHECK=$($AWSCLI sns get-topic-attributes --topic-arn $topic $PROFILE_OPT --region $regx --query Attributes.Policy --output text | awk -v k="text" '{n=split($0,a,","); for (i=1; i<=n; i++) print a[i]}' | awk '/Principal/ || /Condition/ && !skip { print } { skip = /Deny/}')
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PUBLIC_SNS_WCONDITION=$(echo $SNS_TO_CHECK|grep Condition)
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SHORT_TOPIC=$(echo $topic| cut -d: -f6)
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if [[ $PUBLIC_SNS_WCONDITION ]]; then
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textInfo "$regx: SNS topic $SHORT_TOPIC has a Condition" "$regx"
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else
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PUBLIC_SNS=$(echo $SNS_TO_CHECK|grep \"Principal|grep \*)
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if [[ $PUBLIC_SNS ]]; then
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textFail "$regx: SNS topic $SHORT_TOPIC seems to be public (Principal: \"*\")" "$regx"
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else
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textInfo "$regx: SNS topic $SHORT_TOPIC seems correct" "$regx"
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fi
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fi
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done
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else
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textInfo "$regx: No SNS topics found" "$regx"
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fi
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done
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}
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