'root' account access should be monitored
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Description
Real-time monitoring of API calls can be achieved by directing CloudTrail logs to CloudWatch logs and establishing corresponding metric filters and alarms. It is recommended to set up a metric filter and alarm for root login attempts to provide visibility into the use of the fully privileged root account and to reduce its usage.
For instructions on setting up CloudWatch metric filters and alarms for root login attempts, refer to the AWS CloudWatch Alarms for CloudTrail User Guide.
aws logs put-metric-filter --log-group-name <cloudtrail_log_group_name> \
--filter-name <root_usage_metric> --metric-transformations \
metricName=<root_usage_metric>,metricNamespace='CISBenchmark',metricValue=1 \
--filter-pattern '{ $.userIdentity.type = "Root" && $.userIdentity.invokedBy NOT EXISTS && \
$.eventType != "AwsServiceEvent" }'
You can choose your own metricName and metricNamespace strings. Use the same metricNamespace for all Foundations Benchmark metrics to group them together.
