mirror of
https://github.com/ghndrx/prowler.git
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4961498562
Added a third parameter to checks textFail and textPass to identify resource name in finding.
73 lines
4.4 KiB
Bash
73 lines
4.4 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_extra720="7.20"
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CHECK_TITLE_extra720="[extra720] Check if Lambda functions invoke API operations are being recorded by CloudTrail (Not Scored) (Not part of CIS benchmark)"
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CHECK_SCORED_extra720="NOT_SCORED"
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CHECK_TYPE_extra720="EXTRA"
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CHECK_SEVERITY_extra720="Low"
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CHECK_ASFF_RESOURCE_TYPE_extra720="AwsLambdaFunction"
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CHECK_ALTERNATE_check720="extra720"
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CHECK_SERVICENAME_extra720="lambda"
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CHECK_RISK_extra720='If logs are not enabled; monitoring of service use and threat analysis is not possible.'
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CHECK_REMEDIATION_extra720='Make sure you are logging information about Lambda operations. Create a lifecycle and use cases for each trail.'
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CHECK_DOC_extra720='https://docs.aws.amazon.com/lambda/latest/dg/logging-using-cloudtrail.html'
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CHECK_CAF_EPIC_extra720='Logging and Monitoring'
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extra720(){
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# "Check if Lambda functions invoke API operations are being recorded by CloudTrail (Not Scored) (Not part of CIS benchmark)"
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for regx in $REGIONS; do
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LIST_OF_FUNCTIONS=$($AWSCLI lambda list-functions $PROFILE_OPT --region $regx --query 'Functions[*].FunctionName' --output text 2>&1)
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if [[ $(echo "$LIST_OF_FUNCTIONS" | grep AccessDenied) ]]; then
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textFail "$regx: Access Denied trying to list functions"
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continue
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fi
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if [[ $LIST_OF_FUNCTIONS ]]; then
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LIST_OF_TRAILS=$($AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $regx --query 'trailList[*].TrailARN' --output text 2>&1)
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if [[ $(echo "$LIST_OF_TRAILS" | grep AccessDenied) ]]; then
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textFail "$regx: Access Denied trying to describe trails"
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continue
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fi
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for lambdafunction in $LIST_OF_FUNCTIONS; do
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if [[ $LIST_OF_TRAILS ]]; then
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for trail in $LIST_OF_TRAILS; do
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FUNCTION_ENABLED_IN_TRAIL=$($AWSCLI cloudtrail get-event-selectors $PROFILE_OPT --trail-name $trail --region $regx --query "EventSelectors[*].DataResources[?Type == \`AWS::Lambda::Function\`].Values" --output text |xargs -n1| grep -E "^arn:${AWS_PARTITION}:lambda.*function:$lambdafunction$|^arn:${AWS_PARTITION}:lambda$")
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if [[ $FUNCTION_ENABLED_IN_TRAIL ]]; then
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textPass "$regx: Lambda function $lambdafunction enabled in trail $trail" "$regx" "$trail"
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else
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textFail "$regx: Lambda function $lambdafunction NOT enabled in trail $trail" "$regx" "$trail"
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fi
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done
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# LIST_OF_MULTIREGION_TRAILS=$($AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $regx --query "trailList[?IsMultiRegionTrail == \`true\`].Name" --output text)
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# if [[ $LIST_OF_MULTIREGION_TRAILS ]]; then
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# for trail in $LIST_OF_MULTIREGION_TRAILS; do
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# REGION_OF_TRAIL=$($AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $regx --query "trailList[?IsMultiRegionTrail == \`true\` && Name == \`$trail\` ].HomeRegion" --output text)
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# FUNCTION_ENABLED_IN_THIS_REGION=$($AWSCLI cloudtrail get-event-selectors $PROFILE_OPT --trail-name $trail --region $REGION_OF_TRAIL --query "EventSelectors[*].DataResources[?Type == \`AWS::Lambda::Function\`].Values" --output text |xargs -n1| grep -E "^arn:aws:lambda.*function:$lambdafunction$")
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# if [[ $FUNCTION_ENABLED_IN_THIS_REGION ]]; then
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# textPass "$regx: Lambda function $lambdafunction enabled in trail $trail" "$regx"
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# else
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# textFail "$regx: Lambda function $lambdafunction NOT enabled in trail $trail" "$regx"
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# fi
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# done
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# else
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# textFail "$regx: Lambda function $lambdafunction is not being recorded!" "$regx"
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# fi
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else
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textFail "$regx: Lambda function $lambdafunction is not being recorded no CloudTrail found!" "$regx" "$trail"
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fi
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done
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else
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textInfo "$regx: No Lambda functions found" "$regx"
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fi
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done
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}
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