tegwick
eb8d7b2edc
The founder accepted memo r4 in informed-decision. Its hub write-back is off in production, so hub decision e418263e was resolved from the founder's report. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Assistant: claude-code Assistant-Model: opus Assistant-Process: 469893@bnt-lap001 Assistant-Session: 49296f15-2171-4137-b972-2443bab95edb
293 lines
14 KiB
YAML
293 lines
14 KiB
YAML
apiVersion: netkingdom.io/security-case-type/v0.1
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kind: SecurityCaseType
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spec:
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id: oidc-browser-relying-party
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version: "1.0"
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status: acknowledged
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title: "Browser OIDC relying party for an internal service"
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purpose: >-
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Let an internal web service sign its human users in through NetKingdom
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(KeyCape): an exact-redirect OIDC client, optional MFA pin, the LLDAP groups
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the service maps to its own roles, and, for confidential clients, a client
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secret minted straight into OpenBao custody. Replaces the per-client rollout
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scripts in sso-mfa/k8s/keycape. First case: Forgejo (KEY-WP-0038).
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parameters:
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- name: client_id
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type: string
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case_settable: true
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constraints: {pattern: "^[a-z0-9][a-z0-9-]{1,62}$"}
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sensitivity: operational
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description: OAuth2 client_id, unique in KeyCape.
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- name: display_name
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type: string
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case_settable: true
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constraints: {pattern: "^[^\\n\\r]{1,80}$"}
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sensitivity: public
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description: Name shown on the sign-in page.
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- name: redirect_uris
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type: string
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case_settable: true
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constraints: {pattern: "^https://[^*\\s,]+(,https://[^*\\s,]+)*$"}
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sensitivity: security_sensitive
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description: Comma-separated exact https redirect URIs. No wildcards, no plain http.
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- name: allowed_scopes
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type: string
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case_settable: true
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constraints: {enum: ["openid", "openid,profile", "openid,profile,email", "openid,profile,email,groups", "openid,email", "openid,email,groups", "openid,profile,groups", "openid,groups"]}
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sensitivity: security_sensitive
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description: Scopes the client may request, openid first.
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- name: client_type
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type: string
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case_settable: true
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constraints: {enum: ["confidential", "public"]}
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sensitivity: security_sensitive
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description: confidential for server-side services that can hold a secret; public for SPAs and native apps (PKCE only).
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- name: mfa_required
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type: string
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case_settable: true
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constraints: {enum: ["true", "false"]}
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sensitivity: security_sensitive
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description: Pin MFA on this client. Required "true" when the service grants administrative or owner rights.
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- name: access_groups
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type: string
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case_settable: true
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constraints: {pattern: "^[a-z][a-z0-9-]{1,62}(,[a-z][a-z0-9-]{1,62})*$"}
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sensitivity: operational
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description: Comma-separated LLDAP groups that gate sign-in and that the service maps to its roles. Created if absent.
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- name: initial_members
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type: string
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required: false
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case_settable: true
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constraints: {pattern: "^[a-z][a-z0-9-]*=[a-z][a-z0-9._-]*(\\+[a-z][a-z0-9._-]*)*(;[a-z][a-z0-9-]*=[a-z][a-z0-9._-]*(\\+[a-z][a-z0-9._-]*)*)*$"}
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sensitivity: operational
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description: "Initial memberships as group=user+user;group=user. Usernames are directory usernames, never secrets."
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- name: consuming_service
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type: string
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case_settable: true
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constraints: {pattern: "^[a-z0-9][a-z0-9-]*$"}
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sensitivity: operational
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description: The service that signs users in with this client.
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- name: consumer_owner_repo
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type: string
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case_settable: true
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constraints: {pattern: "^[a-z0-9][a-z0-9-]*$"}
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sensitivity: operational
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description: The repository that owns the consuming service's configuration.
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- name: issuer
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type: string
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case_settable: false
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default: https://kc.coulomb.social
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sensitivity: security_sensitive
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description: The NetKingdom issuer; fixed by the type.
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composition:
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authority: netkingdom
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initial_trust: [runtime_secret_trust, runtime_identity_trust]
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capabilities: [c1.lightweight-sso]
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providers:
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c1.lightweight-sso: net-kingdom.keycape-client-registration
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parameter_bindings:
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net-kingdom.keycape-client-registration.client_id: client_id
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net-kingdom.keycape-client-registration.display_name: display_name
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net-kingdom.keycape-client-registration.redirect_uris: redirect_uris
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net-kingdom.keycape-client-registration.allowed_scopes: allowed_scopes
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net-kingdom.keycape-client-registration.client_type: client_type
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net-kingdom.keycape-client-registration.mfa_required: mfa_required
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materialization:
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# Placement follows the live CCR-2026-0033 reference (secrets-engine-openbao,
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# ops-mason plans/keycape-secrets-engine-openbao-client-custody.md). The path
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# is derived, not case-settable, and the policies reuse the existing
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# workload-kv-read-keycape-<client>-<reader> family (MASON-WP-0010-T01).
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- id: client-secret-path
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kind: kv_path
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when: "client_type == confidential"
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template: "platform/workloads/keycape/{client_id}"
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body: "field CLIENT_SECRET; minted by the credential broker, never written by hand"
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- id: keycape-reader-policy
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kind: openbao_policy
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when: "client_type == confidential"
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template: "workload-kv-read-keycape-{client_id}-eso"
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body: |
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path "platform/data/workloads/keycape/{client_id}" {{
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capabilities = ["read"]
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}}
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description: KeyCape reads its client secret only through ESO. No metadata, list, parent or sibling access.
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- id: consumer-reader-policy
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kind: openbao_policy
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when: "client_type == confidential"
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template: "workload-kv-read-keycape-{client_id}-{consuming_service}"
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body: |
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path "platform/data/workloads/keycape/{client_id}" {{
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capabilities = ["read"]
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}}
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description: The consuming service reads the same secret. No metadata, list, parent or sibling access.
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- id: eso-role
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kind: openbao_role
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when: "client_type == confidential"
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template: "external-secrets-keycape-{client_id}"
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body: |
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auth: kubernetes
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bound_service_account_names: [external-secrets]
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bound_service_account_namespaces: [external-secrets]
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token_policies: [workload-kv-read-keycape-{client_id}-eso]
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token_no_default_policy: true
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token_ttl: 15m
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token_max_ttl: 15m
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description: The Kubernetes-auth role deliver-secret uses; bound to the ESO service account only.
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- id: catalog-entry
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kind: catalog_entry
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template: "{consuming_service}-keycape-client"
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body: |
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id: {consuming_service}-keycape-client
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owner_repo: key-cape
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warden_executes: false
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risk: high
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status: active once verification passes
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workload_ref: applicable, name {consuming_service}, declaration_ref of the consumer's published declaration or the explicit unknown form, never inferred
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path_template: platform/workloads/keycape/{client_id}
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field: CLIENT_SECRET
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delegation: native, intended_owner key-cape
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rotation: mint-secret then verification; automatable false until a run has been proven
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description: >-
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One entry per case (ops-mason item 5, ops-warden R4'). It carries the
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consumer's workload reference, which ADR-0009 needs for zone selection.
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follow_through:
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- id: ensure-groups
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owner: net-kingdom
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entry_point: "identity-provisioner ensure_service_groups, run inside the provisioner pod through the session's contained cluster access (groups {access_groups}; members exactly {initial_members} as recorded in the accepted case, nothing else)"
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auth: "operator cluster access in the attended register-client session; the in-pod call uses the provisioner's own directory binding, and no provisioner or user-engine token is read or sent"
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lane: key-cape-oidc-login
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warden_executes: false
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attended: true
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value_handling: none
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attended_justification: >-
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The provisioner's only HTTP credential is user-engine's runtime token, and
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its NetworkPolicy admits only user-engine pods. A proxy lane would act as
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user-engine (ops-warden review R8; canon section 3; ops-warden ADR-0002).
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Running it in the session register-client already needs adds no attended
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session. It can become unattended once the provisioner has an operator
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credential of its own and an admitted path.
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- id: mint-secret
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owner: railiance-platform
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when: "client_type == confidential"
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entry_point: "railiance-platform credential broker: generate a client secret inside custody at bao:platform/workloads/keycape/{client_id}"
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auth: "the caller's broker grant for the case's KV path, through its lane; the value is generated in custody and never returned"
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lane: keycape-client-secret-generate
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warden_executes: true
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attended: false
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value_handling: generated_in_custody
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- id: deliver-secret
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owner: railiance-platform
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when: "client_type == confidential"
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entry_point: "ExternalSecret sso/keycape-{client_id}-client (key client-secret) from bao:platform/workloads/keycape/{client_id}"
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auth: "railiance-platform ESO delivery through role external-secrets-keycape-{client_id}; no value leaves custody"
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warden_executes: false
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attended: false
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value_handling: none
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ready_check: "the delivery for sso/keycape-{client_id}-client reports Ready=True (status only, no value read)"
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- id: bind-env
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owner: net-kingdom
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when: "client_type == confidential"
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entry_point: "patch Deployment sso/keycape: env KEYCAPE_<CLIENT_ID>_CLIENT_SECRET from sso/keycape-{client_id}-client"
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auth: "operator kube credentials for namespace sso"
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lane: key-cape-oidc-login
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warden_executes: false
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attended: true
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value_handling: none
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attended_justification: >-
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A change to the live identity provider's Deployment. It runs in the same
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attended operator session as register-client, before it, because
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KeyCape resolves a confidential client's secret at start and fails
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closed if the binding is missing.
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- id: register-client
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owner: net-kingdom
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entry_point: "sso-mfa/k8s/keycape/keycape-client.py apply --client-file <client-from-case> --case-acceptance <record> (net-kingdom.keycape-client-registration)"
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auth: "operator write access to the live KeyCape client registry in namespace sso"
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lane: key-cape-oidc-login
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warden_executes: false
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attended: true
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value_handling: none
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attended_justification: >-
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The live KeyCape client registry is a Kubernetes Secret, and agents do
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not read or write Secrets. Until KeyCape loads clients from a
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non-secret registry with secrets referenced from custody, one attended
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operator session applies the rendered registration. ops-warden groups
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all attended steps of a run into that one session.
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- id: hand-over
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owner: "{consumer_owner_repo}"
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entry_point: "configure {consuming_service} with issuer {issuer}, client {client_id} and custody bao:platform/workloads/keycape/{client_id}"
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auth: "the consumer owner's own deployment path"
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warden_executes: false
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attended: false
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value_handling: none
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verification:
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- id: authorize-accepts-redirects
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check: "GET {issuer}/authorize with client {client_id} and each of {redirect_uris} returns the login page"
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expect: present
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reads_secret_value: false
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- id: authorize-refuses-other-redirect
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check: "GET {issuer}/authorize with client {client_id} and an unregistered redirect returns an OAuth error"
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expect: deny
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reads_secret_value: false
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- id: custody-denied-to-default
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when: "client_type == confidential"
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check: "a default-only OpenBao identity has no read capability on bao:platform/workloads/keycape/{client_id}"
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expect: deny
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reads_secret_value: false
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- id: custody-allowed-to-consumer
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when: "client_type == confidential"
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check: "policy workload-kv-read-keycape-{client_id}-{consuming_service} grants read on bao:platform/workloads/keycape/{client_id} (capabilities check only)"
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expect: allow
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reads_secret_value: false
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- id: groups-present
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check: "LLDAP groups {access_groups} exist, with exactly the memberships of the accepted case added"
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expect: present
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reads_secret_value: false
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- id: secret-delivered
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when: "client_type == confidential"
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check: "the delivery for sso/keycape-{client_id}-client reports Ready=True (status only)"
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expect: present
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reads_secret_value: false
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- id: mfa-pinned
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when: "mfa_required == true"
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check: "keycape-client.py inspect for {client_id} shows the MFA pin on the registered client (non-secret client view)"
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expect: present
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reads_secret_value: false
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rollback:
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- reverses: hand-over
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action: "remove the OIDC source for {client_id} from {consuming_service} (owner {consumer_owner_repo})"
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- reverses: register-client
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action: "keycape-client.py apply --operation remove for {client_id}"
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- reverses: bind-env
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when: "client_type == confidential"
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action: "remove env KEYCAPE_<CLIENT_ID>_CLIENT_SECRET from Deployment sso/keycape, after register-client is reversed"
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- reverses: deliver-secret
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when: "client_type == confidential"
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action: "delete ExternalSecret sso/keycape-{client_id}-client and its target"
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- reverses: mint-secret
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when: "client_type == confidential"
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action: "covered by client-secret-path: one metadata delete, after deliver-secret is reversed"
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- reverses: ensure-groups
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action: "identity-provisioner revoke_service_groups inside the provisioner pod (attended, as ensure-groups) with the case's memberships; delete_if_empty only if no other case uses {access_groups}"
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- reverses: client-secret-path
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when: "client_type == confidential"
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action: "delete metadata and all versions at platform/workloads/keycape/{client_id}, after the ExternalSecret is gone (this also reverses mint-secret)"
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- reverses: eso-role
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when: "client_type == confidential"
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action: "delete Kubernetes-auth role external-secrets-keycape-{client_id}"
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- reverses: keycape-reader-policy
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when: "client_type == confidential"
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action: "delete policy workload-kv-read-keycape-{client_id}-eso, after eso-role"
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- reverses: consumer-reader-policy
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when: "client_type == confidential"
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action: "delete policy workload-kv-read-keycape-{client_id}-{consuming_service}"
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- reverses: catalog-entry
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action: "remove catalog entry {consuming_service}-keycape-client"
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acceptance:
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accepted_by: [owner, founder]
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risk_class: medium
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