Create a Metric Alarm and Filter for changes to Network Access Control Lists (NACL) - Complete Cloud Security in Minutes - Orca Security

Logging and monitoring

Create a Metric Alarm and Filter for changes to Network Access Control Lists (NACL)

Risk Level

Informational (4)

Platform(s)

Compliance Frameworks

Description

Real-time monitoring of API calls can be achieved 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 within a VPC. Monitoring changes to NACLs will help ensure that AWS resources and services are not unintentionally exposed.

Recommended Mitigation

It is recommended that a metric filter and alarm be established for changes made to NACLs.

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