Lambda Public Access Prohibited Check

AWSTemplateFormatVersion: '2010-09-09'
Description: ''
Resources:
  ConfigRule:
    Type: 'AWS::Config::ConfigRule'
    Properties:
      ConfigRuleName: lambda-function-public-access-prohibited
      Description: >-
        A Config rule that checks whether the AWS Lambda function policy
        attached to the Lambda resource prohibits public access. If the Lambda
        function policy allows public access it is noncompliant.
      Scope:
        ComplianceResourceTypes:
          - 'AWS::Lambda::Function'
      Source:
        Owner: AWS
        SourceIdentifier: LAMBDA_FUNCTION_PUBLIC_ACCESS_PROHIBITED
Parameters: {}
Metadata: {}
Conditions: {}