Policy: AWS > CIS v1.4 > 4 - Monitoring > 4.11 - Ensure a log metric filter and alarm exist for changes to Network Access Control Lists (NACL) (Automated)

Configures auditing against a CIS Benchmark item.

Level: 2 (Scored)

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

Resource Types

This policy targets the following resource types:

AWS > Account

Primary Policy

This policy is used with the following primary policy:

AWS > CIS v1.4 > 4 - Monitoring

Controls

Policy Specification

Schema Type	`string`
Default	`Per AWS > CIS v1.4 > 4 - Monitoring`
Valid Values [YAML]	`Per AWS > CIS v1.4 > 4 - Monitoring` `Skip` `Check: Level 2 (Scored)`

In Your Workspace

Policy Settings by Type report

Developers

Category URI

tmod:@turbot/cis#/control/categories/v071103

Policy Type URI

tmod:@turbot/aws-cisv1-4#/policy/types/r0411

GraphQL

query policyType(id: "tmod:@turbot/aws-cisv1-4#/policy/types/r0411") { … }

query policySettings(filter: "policyTypeId:'tmod:@turbot/aws-cisv1-4#/policy/types/r0411'") { … }

query policyValues(filter: "policyTypeId:'tmod:@turbot/aws-cisv1-4#/policy/types/r0411'") { … }

CLI

Get Policy Type

turbot graphql policy-type --id "tmod:@turbot/aws-cisv1-4#/policy/types/r0411"

Get Policy Settings

turbot graphql policy-settings --filter "policyTypeId:tmod:@turbot/aws-cisv1-4#/policy/types/r0411"