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Benchmark: 3.13.6 Deny network communications traffic by default and allow network communications traffic by exception (i.e., deny all, permit by exception)
Description
This requirement applies to inbound and outbound network communications traffic at the system boundary and at identified points within the system. A deny-all, permit-by-exception network communications traffic policy ensures that only those connections which are essential and approved are allowed.
Usage
Browse dashboards and select 3.13.6 Deny network communications traffic by default and allow network communications traffic by exception (i.e., deny all, permit by exception):
steampipe dashboard
Or run the benchmarks in your terminal:
steampipe check aws_compliance.benchmark.nist_800_171_rev_2_3_13_6
Snapshot and share results via Steampipe Cloud:
steampipe loginsteampipe check --share aws_compliance.benchmark.nist_800_171_rev_2_3_13_6
Controls
- VPC security groups should restrict ingress access on ports 20, 21, 22, 3306, 3389, 4333 from 0.0.0.0/0
- VPC security groups should restrict ingress SSH access from 0.0.0.0/0
- VPC security groups should restrict ingress TCP and UDP access from 0.0.0.0/0