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prowler/checks/check315
2018-04-09 15:09:30 -04:00

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#!/usr/bin/env bash
# Prowler - the handy cloud security tool (c) by Toni de la Fuente
#
# This Prowler check is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
#
# You should have received a copy of the license along with this
# work. If not, see <http://creativecommons.org/licenses/by-nc-sa/4.0/>.
CHECK_ID_check315="3.15"
CHECK_TITLE_check315="[check315] Ensure appropriate subscribers to each SNS topic (Not Scored)"
CHECK_SCORED_check315="SCORED"
CHECK_ALTERNATE_check315="check315"
check315(){
# "Ensure appropriate subscribers to each SNS topic (Not Scored)"
CAN_SNS_LIST_SUBS=1
for regx in $REGIONS; do
TOPICS_LIST=$($AWSCLI sns list-topics $PROFILE_OPT --region $regx --output text --query 'Topics[*].TopicArn')
ntopics=$(echo $TOPICS_LIST | wc -w )
if [[ $TOPICS_LIST && $CAN_SNS_LIST_SUBS -eq 1 ]];then
textInfo "Region $regx has $ntopics topics" "$regx"
for topic in $TOPICS_LIST; do
TOPIC_SHORT=$(echo $topic | awk -F: '{ print $6 }')
CHECK_TOPIC_LIST=$($AWSCLI sns list-subscriptions-by-topic --topic-arn $topic $PROFILE_OPT --region $regx --query 'Subscriptions[*].{Endpoint:Endpoint,Protocol:Protocol}' --output text --max-items $MAXITEMS 2> /dev/null)
if [[ $? -eq 255 ]]; then
# Permission error
export CAN_SNS_LIST_SUBS=0
ntopics=$(echo $TOPICS_LIST | wc -w )
textInfo "Region $regx / $ntopics Topics / Subscriptions NO_PERMISSION" "$regx"
break;
fi
if [[ "Z" != "Z${CHECK_TOPIC_LIST}" ]]; then
printf '%s
' "$CHECK_TOPIC_LIST" | while IFS= read -r dest ; do
textInfo "Region $regx / Topic $TOPIC_SHORT / Subscription $dest" "$regx"
done
else
textFail "Region $regx / Topic $TOPIC_SHORT / Subscription NONE" "$regx"
fi
done
elif [[ $CAN_SNS_LIST_SUBS -eq 0 ]]; then
textInfo "Region $regx has $ntopics topics - unable to list subscribers" "$regx"
# break
else
textPass "Region $regx has 0 topics" "$regx"
fi
done
}