mirror of
https://github.com/ghndrx/prowler.git
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62 lines
3.2 KiB
Bash
62 lines
3.2 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_extra725="7.25"
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CHECK_TITLE_extra725="[extra725] Check if S3 buckets have Object-level logging enabled in CloudTrail (Not Scored) (Not part of CIS benchmark)"
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CHECK_SCORED_extra725="NOT_SCORED"
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CHECK_TYPE_extra725="EXTRA"
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CHECK_ALTERNATE_check725="extra725"
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# per Object-level logging is not configured at Bucket level but at CloudTrail trail level
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extra725(){
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# "Check if S3 buckets have Object-level logging enabled in CloudTrail (Not Scored) (Not part of CIS benchmark)"
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textInfo "Looking for S3 Buckets Object-level logging information in all trails... "
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# create a file with a list of all buckets
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TEMP_BUCKET_LIST_FILE=$(mktemp -t prowler.bucket-list-XXXXXX)
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$AWSCLI s3api list-buckets --query 'Buckets[*].{Name:Name}' $PROFILE_OPT --region $REGION --output text > $TEMP_BUCKET_LIST_FILE
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# now create a list with all trails available and their region
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TEMP_TRAILS_LIST_FILE=$(mktemp -t prowler.trails-list-XXXXXX)
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for regx in $REGIONS; do
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$AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $regx --query trailList[?HomeRegion==\`$regx\`].[Name,HomeRegion] --output text >> $TEMP_TRAILS_LIST_FILE
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done
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if [ ! -s $TEMP_TRAILS_LIST_FILE ]; then
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textInfo "$regx: No S3 buckets found" "$regx"
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exit
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fi
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# look for buckets being logged per trail and create a list with them
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TEMP_BUCKETS_LOGGING_LIST_FILE=$(mktemp -t prowler.buckets-logging-list-XXXXXX)
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for trail in $(cat $TEMP_TRAILS_LIST_FILE | awk '{ print $1 }'); do
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TRAIL_REGION=$(grep ^$trail $TEMP_TRAILS_LIST_FILE | awk '{ print $2 }')
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BUCKETS_OBJECT_LOGGING_ENABLED=$($AWSCLI cloudtrail get-event-selectors --trail-name $trail $PROFILE_OPT --region $TRAIL_REGION --query "EventSelectors[*].DataResources[?Type == \`AWS::S3::Object\`].Values" --output text |xargs -n1 |cut -d: -f 6|sed 's/\///g')
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echo $BUCKETS_OBJECT_LOGGING_ENABLED |tr " " "\n"|sort >> $TEMP_BUCKETS_LOGGING_LIST_FILE
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if [[ $BUCKETS_OBJECT_LOGGING_ENABLED ]]; then
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for bucket in $BUCKETS_OBJECT_LOGGING_ENABLED; do
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textPass "$regx: S3 bucket $bucket has Object-level logging enabled in trail $trail" "$regx"
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done
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fi
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done
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# diff to get the ones that are not in any trail then they are not logging
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BUCKETS_NOT_LOGGING=$(diff $TEMP_BUCKETS_LOGGING_LIST_FILE $TEMP_BUCKET_LIST_FILE | sed -n 's/^> //p')
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if [[ $BUCKETS_NOT_LOGGING ]]; then
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for bucket in $BUCKETS_NOT_LOGGING; do
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textFail "$regx: S3 bucket $bucket has Object-level logging disabled" "$regx"
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done
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fi
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# delete all temp files
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rm -fr $TEMP_BUCKET_LIST_FILE $TEMP_TRAILS_LIST_FILE $TEMP_BUCKETS_LOGGING_LIST_FILE
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}
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