bcquality/microsoft/knowledge/security/use-inherent-permissions-to-grant-minimal-access.md
Jesper Schulz-Wedde 9a4198eb28 Add [all] sentinel to bc-version; apply to version-agnostic knowledge
Most of the corpus — FindSet/SetLoadFields/CalcFields patterns, permission
sets, SingleInstance codeunits, DataClassification, IsolatedStorage,
transaction scope, SecretText — describes BC platform behaviour that is
identical across supported versions. The seed [26..28] range on every
file implied a version-specificity the content does not actually have,
and there was no way to express "applies to every version" in the
schema the way [w1] and [all] already do for countries and
application-area.

Extend the v1 schema with a universal sentinel for bc-version, parallel
to the sentinels already defined for the other dimensions:

  bc-version: [all]         # applies to every BC version

[all] is mutually exclusive with explicit versions. Range shorthand
([26..28]) and explicit lists ([26, 27, 28]) continue to work for files
genuinely tied to a version-gated API or deprecation.

Update read.md (field definition, matching semantics, partial-context
rule), write.md (default to [all], use ranges only with a concrete
reason), README.md (frontmatter example), and the CI validator. All
forty existing knowledge files and the three action skills convert to
[all]; none of the current content is version-gated. Validator passes.
2026-04-23 16:00:03 +02:00

1.6 KiB

bc-version domain keywords technologies countries application-area
all
security
inherentpermissions
attribute
least-privilege
al
w1
all

Use InherentPermissions to grant minimal access

Seed article. Converted from an existing security-review prompt to bootstrap the BCQuality security corpus. Domain stewards should expand, restructure, and refine as needed.

Description

The InherentPermissions attribute attaches a minimum access grant to a procedure. Callers can invoke the procedure without holding the underlying tabledata right, because the attribute supplies exactly the right required by the procedure body and nothing more. InherentPermissions currently targets only objects owned by the same extension as the annotated procedure; it cannot be used to grant access to tables in other extensions or in the base application.

Best Practice

Annotate read-only helper procedures with InherentPermissions specifying only the tables and access letters the body uses (typically 'r'). Callers do not need direct read rights on the underlying extension-owned table, so the calling role can be narrower. This is the narrowest of the elevation options and is appropriate for read-only lookup helpers.

See sample: use-inherent-permissions-to-grant-minimal-access.good.al.

Anti Pattern

A helper that reads a single lookup value but forces every calling role to hold tabledata read rights, because the helper does not declare its own inherent permissions. The broad read right then applies to every other code path that role can reach, not just the helper.

See sample: use-inherent-permissions-to-grant-minimal-access.bad.al.