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Control: Ensure a log metric filter and alarm exist for changes to Network Access Control Lists (NACL)
Description
You can do real-time monitoring of API calls by directing CloudTrail logs to CloudWatch Logs and establishing corresponding metric filters and alarms. NACLs are used as a stateless packet filter to control ingress and egress traffic for subnets in a VPC. Security Hub recommends that you create a metric filter and alarm for changes to NACLs. Monitoring these changes helps ensure that AWS resources and services aren't unintentionally exposed.
Usage
Run the control in your terminal:
powerpipe control run aws_compliance.control.log_metric_filter_network_acl
Snapshot and share results via Turbot Pipes:
powerpipe loginpowerpipe control run aws_compliance.control.log_metric_filter_network_acl --share
SQL
This control uses a named query:
log_metric_filter_network_acl