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VPC Has Excessive Subnets

Overview​

Implementing a Minimum Viable Network (MVN) is crucial for reducing the attack surface and improving the security posture of cloud infrastructure. This check identifies VPCs that have more than 20 subnets, which could indicate an overly complex network that is harder to manage and secure. By flagging these VPCs, the check aids in simplifying network designs and adhering to the principle of least privilege.

Vendor​

AWS

Cloud Service​

EC2

CSMM v1 NET-04.2

Severity​

2

Item Types​

AWS::EC2::VPC

AWS::EC2::Subnet