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CloudSploit

AWS / EC2 / VPC Multiple Subnets

Quick Info

Plugin Title VPC Multiple Subnets
Cloud AWS
Category EC2
Description Ensures that VPCs have multiple networks to provide a layered architecture
More Info A single network within a VPC increases the risk of a broader blast radius in the event of a compromise.
AWS Link https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Subnets.html#SubnetSecurity
Recommended Action Create multiple networks/subnets in each VPC and change the architecture to take advantage of public and private tiers.

Detailed Remediation Steps