Commit Graph

5 Commits

Author SHA1 Message Date
shankar0123 f5ba17114d fix(audit): close silence-leg of HIGH-6; emit WARN on audit-write failure
Audit 2026-05-10 HIGH-6 partial closure (silence leg). The audit
identified two distinct gaps in the auth surface's audit-emit pattern:

  (1) silence — `_ = audit.RecordEventWithCategory(...)` discards the
      error, so a DB hiccup or connection reset between action and
      audit-row INSERT goes completely unnoticed. CWE-778; SOC 2 / NIST
      AU-9 compliance requires every authorization event to be durably
      logged, and 'we have an audit log' is a weaker claim than 'every
      authorization event is durably logged.'

  (2) non-transactional — the audit row uses a separate connection
      from the action's tx, so partial failure leaves an orphan action
      row that committed with no audit trail. Decision 8 of the
      auth-bundles-index requires action + audit row atomic.

This commit closes leg (1) fully across all six audit-emit call sites
in the auth surface:

  - internal/service/auth/actor_role_service.go::recordAudit
  - internal/service/auth/role_service.go::recordAudit
  - internal/auth/bootstrap/service.go::ValidateAndMint
  - internal/auth/breakglass/service.go::recordAudit
  - internal/auth/session/service.go::recordAudit
  - internal/api/handler/auth_session_oidc.go::recordAudit
  - internal/service/profile.go::Update (Phase 9 approval-bypass)

Each `_ = ...` swallow is replaced with:

  if err := audit.RecordEventWithCategory(...); err != nil {
      slog.WarnContext(ctx, '<surface> audit write failed (action
      committed; audit row may be missing)',
      'action', action, 'actor_id', actor, 'resource_id', resource,
      'err', err)
  }

Operators monitoring audit-write failures now see structured WARN
logs with action + actor + resource attribution; missing audit rows
can be cross-referenced against monitoring without manual SELECT-from-
audit-table.

Infrastructure for leg (2) (transactional commit) is also landed in
this commit:

  - service.AuditService.RecordEventWithCategoryWithTx (new method;
    accepts repository.Querier from postgres.WithinTx — the existing
    helper used by the issuer-coverage audit closure)
  - service/auth.AuditService interface declares the new method
  - test stub fakeAudit.RecordEventWithCategoryWithTx satisfies the
    extended interface

The eight per-path WithinTx-refactors documented in
cowork/auth-bundles-fixes-2026-05-10/10-high-6-atomic-audit-commit.md
(role grant/revoke, session revoke, breakglass set/remove, approval
submit/approve/reject, OIDC provider CRUD, bootstrap consume) are
deferred to a v3 follow-on bundle. Each requires reshaping the
corresponding repository methods to accept *Tx variants; collectively
that's ~2 days of refactor work that warrants its own bundle. The
silence-leg closure is the high-impact, low-risk subset that catches
the common-failure case (DB connection drops, audit-table outage).

Refs: cowork/auth-bundles-audit-2026-05-10.md HIGH-6
Spec: cowork/auth-bundles-fixes-2026-05-10/10-high-6-atomic-audit-commit.md
2026-05-10 21:24:29 +00:00
shankar0123 0f340beb14 fix(auth/ux): cause-aware OIDC + session error surfacing (HIGH-7 + HIGH-8 closure)
Server (HIGH-7): the OIDC callback failure path now 302-redirects to
/login?error=oidc_failed&reason=<category> instead of emitting a blank
400. `category` is the existing audit `failure_category` value;
classifyOIDCFailure was extended with three new sentinel paths
(email_domain_not_allowed, email_missing_but_required, pkce_invalid)
so CRIT-5 + PKCE failures get distinguishable GUI rendering.
Audit-log observability is unchanged — the same failure_category is
written to the auth.oidc_login_failed audit row; the 302 is purely a
UX leg layered on top.

Server (HIGH-8): SessionMiddleware now stashes a cause classification
on the request context when Validate returns an error, mapping the
sentinels via classifySessionError (errors.Is-based, so wrapped
sentinels still classify) to the stable wire-strings idle_timeout /
absolute_timeout / back_channel_revoked / invalid_token. The 401
emit point in bearerSkipIfAuthenticated reads the stashed cause and
emits WWW-Authenticate: Bearer realm="certctl", error="invalid_token",
error_description=<cause> per RFC 6750 §3.

GUI (HIGH-7): LoginPage reads ?error= + ?reason= from the URL via
react-router useSearchParams and renders an operator-friendly
amber-bordered banner above the form; OIDC_FAILURE_REASON_TEXT maps
all 16 known categories with a defensive 'unspecified' fallback for
forward-compat with future server-side categories.

GUI (HIGH-8): api/client fetchJSON parses the WWW-Authenticate cause
via parseWWWAuthenticateCause and attaches it to the
'certctl:auth-required' CustomEvent detail; AuthProvider redirects
to /login?session_expired=<cause> on cause-aware 401s; LoginPage
renders a blue-bordered session-cause banner. invalid_token stays
on the current page (no hard redirect for opaque failures).

Misc cleanup: ErrorState now accepts the title/message/data-testid
form added by CRIT-4 BreakglassPage (was erroring tsc on master).

Regression matrix:
- internal/api/handler/oidc_redirect_categories_test.go pins all 16
  failure categories to the 302 + reason= location + audit-row leg
- internal/auth/session/www_authenticate_test.go pins the 4 stable
  cause categories on classifySessionError (incl. errors.Is wrapped
  sentinels) + the WWW-Authenticate emission across all 4 categories
  + the no-session-context fallback case
- internal/api/handler/auth_session_oidc_test.go: 4 pre-existing
  TestLoginCallback_*Returns400 tests updated to assert 302 + reason=
  location (the wire shape changed from 400 to 302, but the audit
  observability and behaviour-equivalent failure-classification are
  preserved)
- web/src/pages/LoginPage.test.tsx: 6 new cases pinning the failure
  banner, session-cause banner, unknown-reason fallback, and
  forward-compat 'unspecified' category

Spec: cowork/auth-bundles-fixes-2026-05-10/08-high-7-8-error-surfacing.md
Closes: HIGH-7, HIGH-8 of cowork/auth-bundles-audit-2026-05-10.md
2026-05-10 21:12:11 +00:00
shankar0123 15435ca02b fix(oidc/bcl): jti replay-cache + iat freshness check (HIGH-3 closure)
Closes HIGH-3 of the 2026-05-10 audit. Pre-fix the BCL handler
accepted any logout_token whose iat + jti were syntactically present
but never checked (a) that iat fell within a skew window or (b) that
jti hadn't been seen before. A captured logout_token was replayable
indefinitely; once CRIT-2 was fixed, every replay would revoke the
user's current sessions — persistent DoS. RFC 9700 §2.7 + OIDC BCL
1.0 §2.5 require jti replay defense.

- Migration 000040_bcl_replay_cache: oidc_bcl_consumed_jtis table with
  composite PK on (jti, issuer_url) — RFC 7519 §4.1.7 per-issuer
  uniqueness — and an expires_at index for the GC sweep.

- repository.BCLReplayRepository interface + ErrBCLJTIAlreadyConsumed
  sentinel. Postgres impl uses INSERT...ON CONFLICT DO NOTHING
  RETURNING true for atomic single-use semantics in one round-trip.

- handler.DefaultBCLVerifier gains WithMaxAge + nowFn clock seam. iat
  freshness check rejects tokens whose iat is in the future beyond
  max-age OR stale beyond it. Verifier signature extended:
  Verify(ctx, jwt) (iss, sub, sid, jti string, iat int64, err error).

- handler.AuthSessionOIDCHandler gains BCLReplayConsumer (interface)
  + WithBCLReplayConsumer(consumer, maxAge) setter. BackChannelLogout
  consumes the jti post-verify with TTL = max(24h, 2*maxAge):
  - first-receive → 200, sessions revoked, audit outcome=revoked
  - replay (ErrBCLJTIAlreadyConsumed) → 200 + Cache-Control: no-store,
    audit outcome=jti_replayed, sessions NOT re-revoked
  - transient (non-AlreadyConsumed error) → 503 so the IdP retries

- internal/scheduler/scheduler.go: SetBCLReplayGarbageCollector wires
  SweepExpired into the existing session-GC tick (no separate ticker
  for short-lived replay rows).

- cmd/server/main.go: bclMaxAge from cfg.Auth.OIDCBCLMaxAgeSeconds
  (default 60s, env CERTCTL_OIDC_BCL_MAX_AGE_SECONDS); bclReplayRepo
  wired into the verifier + handler + scheduler.

- Three regression tests in internal/api/handler/bcl_replay_test.go:
  TestBackChannelLogout_FirstReceiveConsumesJTI,
  TestBackChannelLogout_ReplayedJTIReturns200WithAudit,
  TestBackChannelLogout_TransientConsumeFailureReturns503.

- internal/api/handler/auth_session_oidc_test.go: stubBCLVerifier
  gains jti + iat fields; existing TestBackChannelLogout_* tests
  rewritten for the new Verify return.

Verification gate green: gofmt clean, go vet clean, go test -short
-count=1 on internal/api/handler / internal/api/router /
internal/scheduler / cmd/server / internal/auth/oidc /
internal/auth/breakglass — all pass.

CRIT-1..CRIT-5 + HIGH-1 + HIGH-2 + HIGH-3 of the 2026-05-10 audit
now closed on this branch. Spec at
cowork/auth-bundles-fixes-2026-05-10/07-high-3-bcl-replay-defense.md.

Refs: cowork/auth-bundles-audit-2026-05-10.md HIGH-3
2026-05-10 20:53:29 +00:00
shankar0123 ca1e135aa3 fix(oidc/bcl): resolve sub→actor_id via users.GetByOIDCSubject (CRIT-2 closure)
Closes CRIT-2 of the 2026-05-10 audit. The BCL handler previously called
sessionSvc.RevokeAllForActor(sub, "User") but session rows are keyed by
user.ID (a random "u-" + 16-byte token), not the OIDC subject — the
"Phase 5 simplification" comment in the source was factually wrong about
how internal/auth/oidc/service.go::upsertUser seeds user.ID. As a result,
the SQL lookup returned zero rows on every BCL receive, the error was
silently swallowed (`_ = rerr`), an audit row was written claiming success,
and the handler returned 200 + Cache-Control: no-store. OIDC BCL 1.0 §2.6
("MUST destroy all sessions identified by the sub or sid") was unimplemented.
CWE-613.

This commit:

- Adds userRepo (repository.UserRepository) to AuthSessionOIDCHandler
  struct + NewAuthSessionOIDCHandler constructor. cmd/server/main.go
  injects the existing oidcUserRepo (no new repository instance).

- Replaces the broken sub-as-actor-id path with:
    1. providerRepo.List(ctx, tenantID) + IssuerURL filter to map
       claims.iss → provider row (N is small; typically 1-5).
    2. userRepo.GetByOIDCSubject(ctx, provider.ID, sub) to resolve the
       OIDC subject → user.ID.
    3. sessionSvc.RevokeAllForActor(user.ID, "User") with the RESOLVED
       actor_id (not the OIDC subject).

- Audits four success-shaped outcome categories:
    - outcome=revoked         — happy path
    - outcome=user_unknown    — IdP BCLs a user we never logged in (idempotent 200)
    - outcome=issuer_unknown  — iss doesn't match any configured provider (idempotent 200)
    - outcome=revoke_failed   — RevokeAllForActor returned an error (200, best-effort per §2.8)
  And two transient outcomes that return 503 (IdP retries per §2.8):
    - outcome=provider_lookup_failed  — providerRepo.List error
    - outcome=user_lookup_failed      — non-NotFound userRepo error

- Removes the misleading "Phase 5 simplification" comment block; replaces
  with a doc explaining the resolution path + outcome taxonomy + spec refs.

- Adds 5 regression tests in internal/api/handler/auth_session_oidc_test.go:
    - TestBackChannelLogout_HappyPath_RevokesSubject (updated to seed
      provider + user; asserts RevokeAllForActor was called with the
      resolved user.ID, not the raw OIDC subject — the test that would
      have caught CRIT-2 had it existed)
    - TestBackChannelLogout_UnknownUserReturns200WithAudit
    - TestBackChannelLogout_IssuerUnknownReturns200WithAudit
    - TestBackChannelLogout_TransientUserRepoErrorReturns503
    - TestBackChannelLogout_RevokeFailureReturns200WithAuditFailureOutcome

- Introduces stubUserRepo in the handler test file (matching the four
  repository.UserRepository interface methods) so the existing
  newPhase5Handler fixture seeds a usable user resolver.

Verification gate green:
- gofmt -l . clean
- go vet ./... clean
- go test -short -count=1 ./internal/api/handler/ ./internal/api/router/
  ./internal/auth/... ./internal/domain/auth/ ./internal/service/auth/
  ./cmd/server/ — all pass
- go build ./... clean

CRIT-1 from the same audit is already closed on this branch (commit
68ca42f); CRIT-3 / CRIT-4 / CRIT-5 remain open and continue to block
the v2.1.0 tag. Spec: cowork/auth-bundles-fixes-2026-05-10/02-crit-2-bcl-sub-lookup.md.

Refs: cowork/auth-bundles-audit-2026-05-10.md CRIT-2
2026-05-10 20:07:29 +00:00
shankar0123 9c679a5960 auth-bundle-2 Phase 5: OIDC + session HTTP surface (13 endpoints),
pre-login store, OpenID Connect Back-Channel Logout 1.0, cookieAuth
scheme, 7 new auth permissions, CI guard, handler tests

Phase 5 of the bundle puts the Phase 3 OIDC service + Phase 4 session
service on the wire. 13 HTTP endpoints split into three logical groups:

Public OIDC handshake (auth-exempt; protocol-mediated):
  GET  /auth/oidc/login?provider=<id>  -> 302 to IdP authorization URL
                                          + sets certctl_oidc_pending cookie
                                          (10-min TTL, Path=/auth/oidc/,
                                          SameSite=Lax)
  GET  /auth/oidc/callback?code=...&state=... -> consume pre-login row,
                                          run Phase 3's 11-step token
                                          validation, mint post-login
                                          session, 302 to dashboard
  POST /auth/oidc/back-channel-logout  -> OpenID Connect BCL 1.0 — IdP
                                          POSTs logout_token JWT; certctl
                                          validates signature against IdP
                                          JWKS via Phase 3 alg allow-list,
                                          required claims (iss/aud/iat/jti/
                                          events; exactly one of sub/sid;
                                          nonce ABSENT per spec §2.4),
                                          revokes matching sessions,
                                          returns 200 with
                                          Cache-Control: no-store
  POST /auth/logout                    -> revoke caller's session

Session management (RBAC-gated auth.session.*):
  GET    /api/v1/auth/sessions         -> auth.session.list (own / all)
  DELETE /api/v1/auth/sessions/{id}    -> auth.session.revoke (own bypass)

OIDC provider + group-mapping CRUD (RBAC-gated auth.oidc.*):
  GET    /api/v1/auth/oidc/providers              -> auth.oidc.list
  POST   /api/v1/auth/oidc/providers              -> auth.oidc.create
                                                     (client_secret encrypted
                                                     at rest via
                                                     internal/crypto.EncryptIfKeySet)
  PUT    /api/v1/auth/oidc/providers/{id}         -> auth.oidc.edit
  DELETE /api/v1/auth/oidc/providers/{id}         -> auth.oidc.delete
                                                     (refused via
                                                     ErrOIDCProviderInUse → 409
                                                     when users authenticated
                                                     via this provider)
  POST   /api/v1/auth/oidc/providers/{id}/refresh -> auth.oidc.edit
                                                     (re-runs IdP downgrade
                                                     defense via
                                                     OIDCService.RefreshKeys)
  GET    /api/v1/auth/oidc/group-mappings         -> auth.oidc.list
  POST   /api/v1/auth/oidc/group-mappings         -> auth.oidc.edit
  DELETE /api/v1/auth/oidc/group-mappings/{id}    -> auth.oidc.edit

Migration 000037 ships:

  - oidc_pre_login_sessions table (10-min absolute TTL, FK CASCADE on
    oidc_provider_id, FK RESTRICT on signing_key_id; index on
    absolute_expires_at for the GC sweep);
  - 7 new permissions seeded into r-admin only:
      auth.session.list, auth.session.list.all, auth.session.revoke,
      auth.oidc.list, auth.oidc.create, auth.oidc.edit, auth.oidc.delete

CanonicalPermissions extended in lockstep at internal/domain/auth/
validate.go.

Pre-login machinery:

  - internal/repository/oidc.go gains PreLoginRepository interface +
    PreLoginSession struct + ErrPreLoginNotFound / ErrPreLoginExpired
    sentinels.
  - internal/repository/postgres/oidc_prelogin.go ships the impl;
    LookupAndConsume uses DELETE ... RETURNING for atomic single-use.
  - internal/auth/oidc/prelogin.go is the PreLoginAdapter that bridges
    the OIDC service's Phase 3 PreLoginStore interface to the new
    repository, signing the cookie value under the active
    SessionSigningKey via the same v1.<id>.<key>.<HMAC> wire format
    Phase 4 uses for post-login cookies. Defense-in-depth: the
    pre-login `pl-` prefix is enforced by ParseCookieValue(prefix);
    a stolen pre-login cookie cannot be replayed against the
    post-login Validate path (pinned by
    TestService_Validate_RejectsPreLoginCookieAtPostLoginGate).

Session package extension:

  - internal/auth/session/service.go gains exported SignCookieValue,
    ParseCookieValue (with caller-supplied id-1 prefix), ComputeCookieHMAC,
    DecryptKeyMaterial wrappers so the OIDC pre-login adapter shares
    the same length-prefixed HMAC math without code duplication.
  - parseCookie no longer hardcodes the `ses-` prefix check (moved to
    Validate as defense-in-depth; pre-login cookie verification uses
    the `pl-` prefix via ParseCookieValue).

Cookie attributes (all Phase 5 endpoints honor CERTCTL_SESSION_SAMESITE
+ Secure=true via SessionCookieAttrs from Phase 4 config):

  - certctl_oidc_pending: Path=/auth/oidc/, MaxAge=600s, SameSite=Lax
    (cannot be Strict because the IdP-initiated callback is a top-level
    navigation from a different origin).
  - certctl_session: Path=/, Expires=8h, SameSite=Lax|Strict, HttpOnly.
  - certctl_csrf: Path=/, Expires=8h, HttpOnly=false (intentional —
    GUI must read it to echo into X-CSRF-Token header).

Audit logging on every mutating operation (event_category="auth"):

  auth.oidc_login_succeeded / failed / unmapped_groups
  auth.oidc_back_channel_logout / failed
  auth.session_revoked
  auth.oidc_provider_{created,updated,deleted,refreshed}
  auth.group_mapping_{added,removed}

OpenAPI updates:

  - cookieAuth security scheme added to api/openapi.yaml under
    components.securitySchemes (apiKey / cookie / certctl_session).
  - The 13 Phase 5 routes are added to SpecParityExceptions with a
    deferral note: full per-endpoint OpenAPI rows land in a follow-on
    commit alongside the GUI work (Phase 8) so the ergonomic shape can
    be validated against the live GUI client.

CI guard: scripts/ci-guards/N-bundle-2-security-empty-preserved.sh
asserts api/openapi.yaml has ≥ 14 'security: []' occurrences (the
pre-Bundle-2 baseline). Reducing the count below 14 would silently
force a Bearer-or-cookie requirement onto an endpoint that legitimately
runs without certctl-issued credentials; the guard fires before that
regression lands.

Handler tests (internal/api/handler/auth_session_oidc_test.go):

  - All 6 prompt-mandated negative cases:
      BCL with missing events claim -> 400
      BCL with nonce present -> 400 (per spec §2.4)
      BCL with sig signed by an unknown key -> 400
      Callback with replayed state -> 400
      Callback with PKCE verifier mismatch -> 400
      Callback with expired pre-login row -> 400
  - Plus happy paths for every endpoint, edge cases (missing-cookie,
    duplicate-name, in-use-409, wrong-tenant), and the Helper-function
    coverage (peekIssuer, classifyOIDCFailure, defaultIfBlank,
    defaultIntIfZero, clientIPFromRequest, encryptClientSecret).

Coverage on internal/api/handler/auth_session_oidc.go: 80.9% per-function
(above the Phase 5 spec's ≥ 80% floor).

Server wiring (cmd/server/main.go):

  Wired AFTER sessionService (Phase 4) so the OIDC PreLoginAdapter can
  sign pre-login cookies under the active SessionSigningKey:
    oidcProviderRepo + oidcMappingRepo + oidcUserRepo + oidcPreLoginRepo
    -> preLoginAdapter -> oidcService -> authSessionOIDCHandler.
  sessionMinterAdapter shim bridges *session.Service.Create to the
  oidcsvc.SessionMinter port the OIDC service consumes.

Router wiring (internal/api/router/router.go):

  4 public OIDC routes via direct r.mux.Handle (auth-exempt; pinned in
  AuthExemptRouterRoutes); 9 RBAC-gated routes via r.Register +
  rbacGate(checker, perm, h). Routes only register when
  reg.AuthSessionOIDC != nil so pre-Phase-5 builds skip the block
  entirely.

Verifications: gofmt clean, go vet clean across all touched packages,
go test -short -count=1 green across internal/api/handler (74 tests +
new Phase 5 batch), internal/api/router (parity + auth-exempt
allowlist), internal/auth/oidc + session (no regressions), full domain
+ scheduler + config sweeps green, ci-guard
N-bundle-2-security-empty-preserved.sh green (17 ≥ 14 baseline).
2026-05-10 06:08:27 +00:00