Backport of acls,catalog,mesh: properly authorize workload selectors on writes into release/1.17.x #19296
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Backport
This PR is auto-generated from #19260 to be assessed for backporting due to the inclusion of the label backport/1.17.
The below text is copied from the body of the original PR.
Description
To properly enforce writes on resources that have workload selectors with prefixes, we need another
service
authorization rule that allows us to check whether read is allowed within a given prefix. Specifically we need to only allow writes if the policy prefix allows for a wider set of names than the prefix selector on the resource. We should also not allow policies with exact names for prefix matches.Part of NET-3993
Examples:
(when default is deny)
Decision: deny
selector:
policy:
Decision: allow
selector:
policy:
Decision: deny
selector:
policy:
Testing & Reproduction steps
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