fix(chart): rbac compliance checkbox for dnsendpoints/status

[vflaux]

What does it do ?

Restrict RBAC permissions for dnsendpoints/status resource to patch and update verbs.

Motivation

fix #6434

More

• Yes, this PR title follows Conventional Commits
• Yes, I added unit tests
• Yes, I updated end user documentation accordingly

[coveralls]

Coverage Report for CI Build 26063689081

Coverage remained the same at 80.638%

Details

• Coverage remained the same as the base build.
• Patch coverage: No coverable lines changed in this PR.
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	21403
Covered Lines:	17259
Line Coverage:	80.64%
Coverage Strength:	1450.43 hits per line

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💛 - Coveralls

[ivankatliarchuk]

Silly question, but worth to make it clear. What does removing * actually protect against?

Almost nothing in practice ;-). If the external-dns service account were compromised:

• The attacker could already read dnsendpoints objects (including their status) via get/list/watch on the main resource
• delete and create on a /status subresource are semantically meaningless in Kubernetes — the API server ignores or rejects them.
• The only real reduction is blocking redundant get/list/watch on the status subresource path specifically - which gives no additional data beyond the main resource.

[ivankatliarchuk]

/retitle fix(chart): rbac compliance checkbox for dnsendpoints/status

[ivankatliarchuk]

Probably patch is not required, but not too sure, needs testing

/lgtm

[vflaux]

If a new verb were ever added, "*" would grant it. Afaik, that's why it's considered bad practice.

[k8s-ci-robot]

New changes are detected. LGTM label has been removed.

[k8s-ci-robot]

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