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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 (c) by Toni de la Fuente
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#
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# This Prowler check is licensed under a
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# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
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#
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# You should have received a copy of the license along with this
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# work. If not, see <http://creativecommons.org/licenses/by-nc-sa/4.0/>.
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#
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# Remediation:
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#
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# https://d1.awsstatic.com/whitepapers/compliance/AWS_CIS_Foundations_Benchmark.pdf
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#
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# aws logs put-metric-filter \
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# --region us-east-1 \
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# --log-group-name CloudTrail/CloudWatchLogGroup \
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# --filter-name RouteTableConfigChanges \
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# --filter-pattern '{ ($.eventName = CreateRoute) || ($.eventName = CreateRouteTable) || ($.eventName = ReplaceRoute) || ($.eventName = ReplaceRouteTableAssociation) || ($.eventName = DeleteRouteTable) || ($.eventName = DeleteRoute) || ($.eventName = DisassociateRouteTable) }' \
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# --metric-transformations metricName=RouteTableEventCount,metricNamespace=CloudTrailMetrics,metricValue=1
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#
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# aws cloudwatch put-metric-alarm \
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# --region us-east-1 \
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# --alarm-name RouteTableConfigChangesAlarm \
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# --alarm-description "Triggered by AWS Route Table config changes." \
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# --metric-name RouteTableEventCount \
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# --namespace CloudTrailMetrics \
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# --statistic Sum \
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# --comparison-operator GreaterThanOrEqualToThreshold \
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# --evaluation-periods 1 \
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# --period 300 \
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# --threshold 1 \
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# --actions-enabled \
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# --alarm-actions arn:aws:sns:us-east-1:123456789012:CloudWatchAlarmTopic
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CHECK_ID_check313="3.13"
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CHECK_TITLE_check313="[check313] Ensure a log metric filter and alarm exist for route table changes (Scored)"
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CHECK_SCORED_check313="SCORED"
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CHECK_TYPE_check313="LEVEL1"
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CHECK_ALTERNATE_check313="check313"
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check313(){
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check3x '\$\.eventName\s*=\s*CreateRoute.+\$\.eventName\s*=\s*CreateRouteTable.+\$\.eventName\s*=\s*ReplaceRoute.+\$\.eventName\s*=\s*ReplaceRouteTableAssociation.+\$\.eventName\s*=\s*DeleteRouteTable.+\$\.eventName\s*=\s*DeleteRoute.+\$\.eventName\s*=\s*DisassociateRouteTable'
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}
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