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prowler/checks/check39
2021-01-22 00:19:45 +01:00

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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/>.
#
# Remediation:
#
# https://d1.awsstatic.com/whitepapers/compliance/AWS_CIS_Foundations_Benchmark.pdf
#
# aws logs put-metric-filter \
# --region us-east-1 \
# --log-group-name CloudTrail/CloudWatchLogGroup \
# --filter-name AWSConfigChanges \
# --filter-pattern '{ ($.eventSource = config.amazonaws.com) && (($.eventName = StopConfigurationRecorder)||($.eventName = DeleteDeliveryChannel)||($.eventName = PutDeliveryChannel)||($.eventName = PutConfigurationRecorder)) }' \
# --metric-transformations metricName=ConfigEventCount,metricNamespace=CloudTrailMetrics,metricValue=1
#
# aws cloudwatch put-metric-alarm \
# --region us-east-1 \
# --alarm-name AWSConfigChangesAlarm \
# --alarm-description "Triggered by AWS Config changes." \
# --metric-name ConfigEventCount \
# --namespace CloudTrailMetrics \
# --statistic Sum \
# --comparison-operator GreaterThanOrEqualToThreshold \
# --evaluation-periods 1 \
# --period 300 \
# --threshold 1 \
# --actions-enabled \
# --alarm-actions arn:aws:sns:us-east-1:123456789012:CloudWatchAlarmTopic
CHECK_ID_check39="3.9"
CHECK_TITLE_check39="[check39] Ensure a log metric filter and alarm exist for AWS Config configuration changes (Scored)"
CHECK_SCORED_check39="SCORED"
CHECK_TYPE_check39="LEVEL2"
CHECK_SEVERITY_check39="Medium"
CHECK_ASFF_TYPE_check39="Software and Configuration Checks/Industry and Regulatory Standards/CIS AWS Foundations Benchmark"
CHECK_ASFF_RESOURCE_TYPE_check39="AwsCloudTrailTrail"
CHECK_ALTERNATE_check309="check39"
CHECK_SERVICENAME_check39="configservice"
check39(){
check3x '\$\.eventSource\s*=\s*config.amazonaws.com.+\$\.eventName\s*=\s*StopConfigurationRecorder.+\$\.eventName\s*=\s*DeleteDeliveryChannel.+\$\.eventName\s*=\s*PutDeliveryChannel.+\$\.eventName\s*=\s*PutConfigurationRecorder'
}