Support for custom metadata fields

[jchrisfarris]

New feature motivation

I'd love to be able to override the various elements of a check's metadata. Right now we can override Severity, but I'd also like to override:

1. CheckTitle so I can align specific CheckIDs to my policy statements
2. Description & Risk so I can also reference internal documentation
3. RelatedUrl so I can point to internal wikis and KBs
4. Remedation.Code.Terraform / NativeIAC to point to my internal golden modules
5. Same for Recommendation

I'm not sure what the "Notes" element is for, so perhaps that can be left off the list

Solution Proposed

Extend support in the metadata.yaml file for the above elements

Describe alternatives you've considered

I could create my own lookup table and decorate/replace going into reports, but that wouldn't allow me to adjust what is sent to SecurityHub.

Additional context

IIRC we discussed this awhile back when the custom severities were implemented. Not sure if the Issue made it over into the v4 list of issues.

[pedrooot]

Hi! @jchrisfarris this task is really interesing, we are working on it. I'll reach you when it's done. Thanks for using Prowler! 🚀

[pedrooot]

Hi! @jchrisfarris in the pr above you can check the new fields!