AWS::Config::ConfigRule.Description length not validated

cfn-lint version: (cfn-lint --version)

~ cfn-lint --version
cfn-lint 0.32.1

Description of issue.

 validation  error detected: Value 'Checks .... ' at 'configRule.description' failed to satisfy
constraint: Member must  have length less than or equal to 256 (Service: AmazonConfig; Status  Code: 400; Error Code: ValidationException; Request ID:  xxxx; Proxy: null).

Please provide as much information as possible:

• Template linting issues:
  • Please provide a CloudFormation sample that generated the issue.

  S3BucketPublicWriteProhibitedConfigRule:
    Type: "AWS::Config::ConfigRule"
    Properties:
      ConfigRuleName: InfoSecS3BucketPublicWriteProhibited
      Description: |
        Checks that your Amazon S3 buckets do not allow public write access.
        The rule checks the Block Public Access settings, the bucket policy,
        and the bucket access control list (ACL). (CIS, NIST-PR.AC-3,
        NIST-PR.AC-5, NIST-PR.DS-5, NIST-PR.PT-3, PCI-1.2.1, PCI-1.3, PCI-7.2)
      MaximumExecutionFrequency: Twelve_Hours
      Scope:
        ComplianceResourceTypes:
          - "AWS::S3::Bucket"
      Source:
        Owner: AWS
        SourceIdentifier: S3_BUCKET_PUBLIC_WRITE_PROHIBITED

• Feature request:
  • Please provide argumentation about the missing feature. Context is key!

• I believe other things are validated for length, and validating description would be awesome.

I have since removed my over-descriptive descriptions 😿

[jbpratt]

@PatMyron No worries, I should have dug in a bit more. Opening up a PR so we can work through this.

[jbpratt]

@PatMyron wonderful, thank you for the link. I will look at contributing this after work.