Network interface should not have a public IP unless required
Medium
AWS
General
aws-ec2-networkinterface-network-interface-public
Applies to
AWS::EC2::NetworkInterface
What CGPulse checks
A resource passes this rule when publicIp must not be set true. Anything else is reported as a finding with the evaluated property value attached as evidence.
How to fix it
Remove public IPs from NICs that do not need direct internet access; use load balancers or NAT gateways. In AWS Console: EC2 > Network interfaces > disassociate public IP. See: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html
Terraform
# Remove public IP via aws_eip disassociation or launch in private subnet
Compliance frameworks
Is your environment compliant with this rule?
CGPulse checks it — and 621 others — against your Azure and AWS accounts with read-only access.
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