Correct the S3 posture declaration against Tenancy Posture SS13
Self-audit after reading SS6, SS11, SS12 and SS13 in full rather than the sections cited in review. openbao A:2 -> A:0. The claim was incoherent (it invoked the absence of tenant context to justify E:0 and ignored it to claim A2, which SS4.2 defines in terms of tenant context) and unevidenced at the moment of claiming, which SS13.1 forbids and SS13.1a does not excuse above the floor. The real authorization evidence, openbao-verify-token-grants.py, is consumer-boundary and is now cited under the provider statement. Floor claims carry reason: per SS13.1a; permanent-by-design lines are marked so SS12 guard does not read them as stalled. The provider-versus-consumer finding is narrowed: SS6 plus the flex-auth I1-forever precedent already express a structurally permanent low level, so that half is withdrawn. What survives is that a provider cannot state the level it makes reachable for its consumers. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
parent
868313f335
commit
cc4e659a9e
2 changed files with 87 additions and 25 deletions
|
|
@ -14,6 +14,19 @@ levels below are `0`. None of them is an admission of weakness, and §6 is
|
|||
explicit that a declared low level is conformant while an unevidenced high
|
||||
level is not.
|
||||
|
||||
**Every level below carries what §13 requires of it.** §13.1: a level is
|
||||
claimed only with its evidence artifact present. §13.1a: at or below the
|
||||
"no control" rung, a declaration requires a **stated reason** instead, because
|
||||
there is nothing to overclaim at the bottom of a ladder. Floor claims here
|
||||
carry `reason:`; claims above the floor carry `evidence:`. A claim with
|
||||
neither would be the overclaim §6 prohibits.
|
||||
|
||||
Where `target` equals `current`, that is a **settled position, not a stalled
|
||||
trajectory** — §6 permits a low level to be permanent by design, on the
|
||||
`flex-auth` precedent (`I1` forever, because verifying its own inputs would
|
||||
make it the identity provider its scope refuses to be). Those lines carry
|
||||
`permanent: true` so §12's guard does not nag them.
|
||||
|
||||
## Why this is a vector *set* and not a vector
|
||||
|
||||
§5 asks a **service** for one level per axis. `railiance-platform` is an OAS
|
||||
|
|
@ -84,28 +97,65 @@ tenancy:
|
|||
tenancy:
|
||||
service: openbao
|
||||
role: credential-provider
|
||||
current: { I: 0, A: 2, E: 0, P: 0, R: 0 }
|
||||
target: { I: 0, A: 2, E: 0, P: 0, R: 1 }
|
||||
current: { I: 0, A: 0, E: 0, P: 0, R: 0 }
|
||||
target: { I: 0, A: 0, E: 0, P: 0, R: 1 }
|
||||
permanent: [I, A, E]
|
||||
service_class: latency-critical
|
||||
reviewed: "2026-08-17"
|
||||
reason:
|
||||
I: "No tenant concept. OpenBao authenticates workloads via Kubernetes
|
||||
auth; it never receives, parses or validates a NetKingdom tenant
|
||||
identifier. Permanent by design — a secrets engine that resolved
|
||||
tenant identity would be duplicating tenant-engine."
|
||||
A: "No tenant context is carried, so there is nothing to bind. Permanent
|
||||
by design, on the §6 flex-auth precedent."
|
||||
E: "No tenant-keyed data. OpenBao holds workload secrets, not tenant
|
||||
records."
|
||||
P: "One instance, every consumer shares it. Single-node rail; §17
|
||||
scaling demands apply."
|
||||
R: "No retention position on audit device output or on KV version
|
||||
history."
|
||||
gap:
|
||||
R: "No retention position on audit device output or on KV version history.
|
||||
R1 (platform default) is reachable cheaply and is not yet declared."
|
||||
notes:
|
||||
- "A2 is claimed on the consumer boundary, not a tenant boundary: policy
|
||||
per workload path, bound once, centrally, in OpenBao's own policy
|
||||
engine. It is NOT delegated to flex-auth, so A3 is not claimed and is
|
||||
not currently a target — a PDP in the credential path would put
|
||||
flex-auth on OpenBao's availability path and OpenBao on flex-auth's."
|
||||
- "E is 0 on the TENANT axis and that number is misleading without this
|
||||
sentence: consumer separation in OpenBao is structural — a workload
|
||||
token's policy cannot address another workload's path at all, which is
|
||||
E4-shaped machinery. It scores 0 because the axis measures the tenant
|
||||
boundary and OpenBao has no tenant dimension. See the provider note."
|
||||
- "P0 is accurate and deliberate: one instance, every consumer shares it.
|
||||
Single-node rail; §17 scaling demands apply."
|
||||
R: "R1 (platform default) is reachable cheaply and is not yet declared.
|
||||
The only line here with a real trajectory."
|
||||
```
|
||||
|
||||
**Correction, 2026-08-17.** This vector first declared `A: 2`. That was
|
||||
wrong twice over and both errors are worth recording rather than quietly
|
||||
editing.
|
||||
|
||||
*It was internally incoherent.* `E: 0` was justified on the ground that
|
||||
OpenBao has no tenant dimension. §4.2's `A2` reads "a single local
|
||||
authorization boundary; **tenant context** bound once, centrally" — the same
|
||||
dimension. A declaration cannot invoke the absence of tenant context to claim
|
||||
the floor on one axis and ignore it to claim a rung on the next.
|
||||
|
||||
*It was unevidenced at the moment of claiming.* §13.1 requires the artifact to
|
||||
be present when the level is claimed, and none was cited. §13.1a would not
|
||||
have rescued it: the table defines an artifact from `A2` upward, so `A2` is
|
||||
precisely the first rung where the exemption stops applying.
|
||||
|
||||
The irony is the point. This repo routed a finding about unevidenced claims
|
||||
in the same week it made one.
|
||||
|
||||
**What the corrected zeros conceal, and why the provider note below exists.**
|
||||
`A: 0` now reads as though OpenBao performs no authorization. It performs a
|
||||
great deal, it is central, and it is mechanically evidenced —
|
||||
`scripts/openbao-verify-token-grants.py` mints a scoped child token, asserts
|
||||
it *can* sign with `ssh/sign/agt-role`, and asserts it *cannot* read policy
|
||||
metadata, then revokes by accessor. That is exactly the shape §13 asks for at
|
||||
`A2`: choke point identified, unbound request refused. It is pointed at the
|
||||
**consumer** boundary, and none of the five axes has anywhere to put it.
|
||||
|
||||
That evidence is therefore cited under the provider statement rather than
|
||||
against a consumer axis. Consumer separation in OpenBao is structural — a
|
||||
workload token's policy cannot address another workload's path at all, which
|
||||
is `E4`-shaped machinery — and the framework's honest application scores it
|
||||
`0`.
|
||||
|
||||
`A3` is not a target: a PDP in the credential path would put `flex-auth` on
|
||||
OpenBao's availability path and OpenBao on `flex-auth`'s.
|
||||
|
||||
### `platform-pg` — policy relationship only
|
||||
|
||||
Declared by `rapp-postgres`. This repo does not restate it. What this repo
|
||||
|
|
@ -131,6 +181,18 @@ plus the provider statement is the accurate form. This is routed as a finding.
|
|||
**The five ladders describe a consumer of storage. They do not describe a
|
||||
provider of it.**
|
||||
|
||||
**Narrowed on re-reading, 2026-08-17.** An earlier version of this finding
|
||||
claimed the framework had no way to say "this zero is structural, not weak".
|
||||
That was wrong: §6 says exactly that, and §13.1a supplies the mechanism —
|
||||
`target` equal to `current` with a stated reason is a settled position, on the
|
||||
`flex-auth` `I1`-forever precedent. This declaration now uses it. Half of the
|
||||
finding is withdrawn.
|
||||
|
||||
What survives is the other half, and it is not expressible: a provider cannot
|
||||
state **what level it makes reachable for the workloads it holds**, nor record
|
||||
a control that is real, mechanically evidenced, and simply not on any of the
|
||||
five consumer axes.
|
||||
|
||||
Every service above scores at or near zero on I, A and E, and in each case for
|
||||
the same structural reason rather than for a weakness: a storage or credential
|
||||
platform has no tenant dimension of its own. It is exactly as strong or weak as
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue