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e6cfd756ac85d766a1077cf916b6888d8a88946d
7 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 shankar0123
|
e6cfd756ac |
fix(auth): SEC-001 — gate OIDC discovery through SafeHTTPDialContext + ValidateSafeURL
Sprint 1 unified-master-audit closure. Two OIDC discovery call sites
passed the bare request context to gooidc.NewProvider:
- internal/auth/oidc/test_discovery.go:65 (dry-run validator)
- internal/auth/oidc/service.go:1066 (runtime cache load)
gooidc.NewProvider derives its HTTP client from the context via
oidc.ClientContext; with no override it falls through to
http.DefaultClient — no SSRF guard. An admin with auth.oidc.create
could induce server-side HTTPS egress to loopback (127.0.0.1, ::1),
RFC 1918, link-local (169.254.169.254 — cloud-instance metadata),
and IPv6 link-local (fe80::/10). The companion JWKS reachability
probe was already routed through SafeHTTPDialContext via the
Bundle 5 R6 closure; the discovery + claims path bypassed that.
Fix:
- New internal/auth/oidc/safehttp.go: oidcDiscoveryClient (Transport
DialContext = validation.SafeHTTPDialContext) + SafeOIDCContext
helper. Both call sites now wrap ctx through SafeOIDCContext
before NewProvider runs.
- Defense-in-depth: OIDCProvider.Validate calls
validation.ValidateSafeURL on the IssuerURL after the existing
https/parse checks, refusing reserved-address issuers at
provider-creation time.
- TestDiscovery surfaces the SSRF policy error via the result's
Errors slice up-front (early-fail UX rail) before invoking
NewProvider.
Test seams:
- setup_test.go swaps oidcDiscoveryClient + validateIssuerSSRF
for httptest loopback compatibility, mirroring the existing
jwksProbeClient pattern.
Regression coverage:
- internal/auth/oidc/domain/types_test.go: 5-case table pinning
loopback v4/v6, cloud metadata, link-local v4/v6 rejection.
- internal/auth/oidc/coverage_fill_test.go: same 5 cases against
Service.TestDiscovery via temporarily restoring the production
gate.
Closes SEC-001.
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shankar0123
|
21aeed4f4e |
legal: addlicense headers + normalize legacy variants (Phase 0 RED-4)
Phase 0 closure (Path B2, post-rewrite):
addlicense sweep — adds the canonical certctl LLC copyright + BUSL-1.1
SPDX header to every production Go file. Template:
// Copyright 2026 certctl LLC. All rights reserved.
// SPDX-License-Identifier: BUSL-1.1
Coverage: 338 / 338 production Go files (cmd/ + internal/, excluding
*_test.go and **/testdata/**). Pre-sweep coverage was 22 / 338 (6.5%);
post-sweep is 338 / 338 (100%).
Normalized 22 pre-existing legacy headers (`// Copyright (c) certctl`
+ `// SPDX-License-Identifier: BSL-1.1`) and 1 file using a
`Certctl Contributors` attribution. The legacy SPDX ID `BSL-1.1`
is non-standard; the official SPDX identifier for Business Source
License 1.1 is `BUSL-1.1` (capital U). All 338 files now share the
canonical form.
Generated via:
addlicense -c "certctl LLC" -y 2026 \
-f cowork/legal/copyright-header.tpl \
-ignore '**/testdata/**' -ignore '**/*_test.go' \
cmd/ internal/
Verification:
find cmd internal -name '*.go' -not -name '*_test.go' \
-not -path '*/testdata/*' \
-exec grep -L '^// Copyright 2026 certctl LLC' {} \; | wc -l
Returns: 0
gofmt clean. Header additions are comments only, no compile impact.
Closes: cowork/certctl-architecture-diligence-audit.html#fix-RED-4
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shankar0123
|
4e8fb16fc2 |
fix(oidc): test seam for jwksProbeClient — closes the B5 R6 httptest regression
CI break diagnosed from go-build-and-test on 47da13e+596e675:
TestTestDiscovery_HappyPath_AgainstMockIdP + TestTestDiscovery_JWKSFetchFails
fail with "refusing to dial reserved address 127.0.0.1" because my
Bundle 5 R6 closure wrapped jwksReachable in
validation.SafeHTTPDialContext — which is exactly what the production
guard is supposed to refuse for httptest.NewServer's 127.0.0.1 bind.
Same shape as the Slack/Teams test-seam fix in
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shankar0123
|
596e675ec7 |
fix(security): close BUNDLE 5 — auth, OIDC, MCP, API + browser security edges
Bundle 5 closure (2026-05-13 acquisition diligence audit). 13-finding
security audit pass across the auth / OIDC / MCP / API / browser-
security surface. Five real closures shipped in code, two false-as-
stated findings annotated with the existing implementation, three
operator-decision items documented for v3 follow-up, three doc-only
fixes (auth architecture narrative aligned with shipped OIDC).
Source findings closed (code):
S1 break-glass /auth/breakglass/login lacked the documented
5/min per-source-IP rate limit; handler now owns its own
SlidingWindowLimiter wired at startup. Doc claim turns true.
R6 OIDC test_discovery JWKS probe ran on http.DefaultClient;
now uses an http.Client whose transport wraps
validation.SafeHTTPDialContext. JWKS URI can no longer
pivot into reserved-address ranges via DNS rebinding.
R7 Slack + Teams notifiers built http.Client without the SSRF
dial-time guard. Both New() constructors now install
validation.SafeHTTPDialContext; webhook URLs (operator-
configured via dynamic-config GUI) cannot dial 169.254.x or
in-cluster reserved ranges. Test seam: newForTest bypasses
the guard for httptest's 127.0.0.1 binds, mirroring the
existing internal/connector/notifier/webhook pattern.
RT-L2 CERTCTL_ACME_INSECURE=true now emits a prominent
logger.Warn at server boot. Pre-Bundle-5 the knob silently
disabled ACME directory TLS verification.
Source findings closed (doc):
finding 1 + HIGH-5 Architecture doc claimed no in-process JWT/
OIDC/mTLS/SAML and pointed everyone at the
authenticating-gateway pattern. Auth Bundle 2
(commit dea5053) shipped native OIDC + sessions +
break-glass. New §"In-process authentication surface"
table (api-key / oidc / none) supersedes the old framing;
"Authenticating-gateway pattern (SAML, mTLS-as-auth,
LDAP)" section retained for protocols certctl still
doesn't ship natively.
Source findings verified false (existing implementation):
S4 OIDC email-domain allowlist — `email_domain_test.go`
already pins the strict-equality semantics (subdomain not
auto-accepted, multi-entry no-match path, empty allowlist
accepts all by-design per RFC 9700 §4.1.1).
SEC-L1 CSP / HSTS / referrer-policy headers — already shipped at
internal/api/middleware/securityheaders.go and wired at
cmd/server/main.go L2003+L2027+L2115.
Operator-decision / deferred (tracked in bundle-5 closure doc):
S3 CERTCTL_API_KEYS_NAMED parsing is wired, end-to-end
validation is partial. Operator decides: complete the
named-key middleware path or deprecate the syntax.
S5 Audit-middleware best-effort for read paths;
security-critical writes use WithinTx. Operator decides
per-path escalation.
S8 MCP threat model — the binary is a thin protocol bridge,
no privileges of its own; every tool call carries
CERTCTL_API_KEY and is auth'd + RBAC-gated server-side.
Optional CERTCTL_MCP_READ_ONLY gate tracked as v3.
SEC-H1 2026-05-10 audit CRIT-1/2/4 already closed on master;
CRIT-3/5 status against the spec folder is operator-
workstation-validation-only. Documented for follow-up.
SEC-L2 WebAuthn / FIDO2 / step-up — already documented in
docs/operator/auth-threat-model.md "Threats Bundle 2 does
NOT close". v3 work item per CLAUDE.md decision 12.
Full per-finding rationale + receipts at
docs/operator/security-bundle-5-audit-closure.md.
Verification:
gofmt -l # clean
go vet ./internal/connector/notifier/slack
./internal/connector/notifier/teams ./internal/auth/oidc
./internal/api/handler ./cmd/server # clean
go build ./cmd/server [...] # clean
go test -short -count=1 ./internal/connector/notifier/slack
./internal/connector/notifier/teams ./internal/api/handler
./internal/auth/oidc ./internal/config # PASS
# (slack 0.028s + teams
# 0.023s + handler 11.0s;
# newForTest seam keeps
# httptest tests green)
Audit-Closes: BUNDLE-5 S1 R6 R7 RT-L2 finding-1 HIGH-5
Audit-Verifies-False: S4 SEC-L1
Audit-Defers: S3 S5 S8 SEC-H1 SEC-L2
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shankar0123
|
fefeccfa59 |
harden(oidc): relax alg-downgrade IdP-bind check to intersection-empty (Keycloak compat)
Phase-10 live-IdP smoke (Keycloak 26.x via testcontainers-go) revealed
the IdP-bind alg-downgrade check was too strict for real-world IdPs.
6 of the integration tests in internal/auth/oidc/integration_keycloak*_test.go
were failing with:
oidc: IdP advertises weak signing algorithms (HS*/none);
refusing to use as defense against downgrade attacks: HS256
Keycloak 26.x (and several other real-world IdPs — Auth0 when HS-mode is
enabled, some Authentik configs) advertise EVERY alg they're capable of
in the discovery doc's id_token_signing_alg_values_supported field, even
when the realm only signs with RS256 in practice. Pre-fix the IdP-bind
check refused on ANY HS* or 'none' advertisement → no real Keycloak deploy
could ever bind a provider row, hence the integration-test failures.
The strict-deny check was defense-in-depth on top of the load-bearing
per-token alg-pin at sig-verify time (isDisallowedAlg, service.go L1177):
that check rejects every ID token whose JWS header carries an alg outside
DefaultAllowedAlgs, regardless of what the discovery doc advertises.
A forged HS256 token signed with the IdP's RS256 pubkey as HMAC secret
is rejected at sig-verify time → the actual algorithm-confusion attack
is closed by the per-token pin, NOT by the discovery-doc check.
Fix: relax the IdP-bind check to refuse only when the intersection of
advertised vs DefaultAllowedAlgs is EMPTY (the pathological all-weak-alg
IdP case). Keycloak (RS256 + HS256 advertised) now binds successfully;
an HS-only IdP still fails closed.
Changes:
- internal/auth/oidc/service.go: rewrite the alg-check loop at L1067 in
getOrLoad / RefreshKeys to compute the intersection set; refuse only
when no acceptable alg is advertised. ErrIdPDowngradeAdvertised
docstring updated to reflect new contract. DefaultAllowedAlgs
docstring + the package-level design-comment block at L40-72 updated
with v2.1.0-relaxed semantics callouts.
- internal/auth/oidc/test_discovery.go: TestDiscovery dry-run validator
rewritten to surface HS*/none alongside RS* as an informational note
('note: IdP advertises weak algorithms %v alongside acceptable ones')
rather than a hard-fail error. HS-only / none-only still hard-fails.
- internal/auth/oidc/service_test.go: TestService_IdPDowngradeDefense_*
tests updated. Renamed:
- RejectsHSAdvertised → RS256PlusHS256_BindsSuccessfully (positive)
- RejectsNoneAdvertised → RejectsHSOnlyAdvertised (intersection-empty)
- RefreshKeys_CatchesPostLoadDowngrade rotated to HS-only post-load
- internal/auth/oidc/coverage_fill_test.go: TestTestDiscovery_AlgDowngradeDetected
split into _HS256AlongsideRS256_BindsWithNote (positive, asserts note
but no hard-fail) + _HSOnly_StillTrips_HardFail (intersection-empty).
- docs/operator/auth-threat-model.md: OIDC token-validation alg-allow-list
section rewritten to call out the load-bearing-defense hierarchy
(per-token pin first, IdP-bind check defense-in-depth) and document
the v2.1.0 relaxation rationale.
- CHANGELOG.md: ### Security entry under Unreleased.
Verify: go test ./internal/auth/oidc/ -short PASS; gofmt clean; go vet
clean. The Keycloak integration tests should now pass when the operator
re-runs 'make keycloak-integration-test'.
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shankar0123
|
09bea664d5 |
chore(fmt): gofmt cleanup on three pre-bundle drift files surfaced by v2.1.0 release-gate Phase 1
Phase 1 (make verify) of cowork/v2.1.0-release-gate.md surfaced three
files with pre-existing gofmt drift that pre-dated the 2026-05-11 fix
bundle work:
internal/auth/oidc/domain/types.go
internal/auth/oidc/integration_keycloak_rotate_test.go
internal/auth/oidc/test_discovery.go
The 2026-05-11 Fix 08 fmt-cleanup commit (
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shankar0123
|
b4b98799d5 |
feat(oidc): POST /api/v1/auth/oidc/test dry-run endpoint (MED-5)
Audit 2026-05-10 MED-5 closure (backend half).
WHAT.
New POST /api/v1/auth/oidc/test endpoint that validates an OIDC
provider configuration without persisting anything. Mirrors the
read-only legs of the production getOrLoad path so operators can
catch typos / network reachability problems / IdP-advertises-weak-
alg conditions BEFORE creating the provider row.
Request body: {issuer_url, client_id, client_secret, scopes} —
client_secret is accepted but unused (discovery + JWKS reachability
do not require it).
Response body: TestDiscoveryResult{
discovery_succeeded — gooidc.NewProvider returned without error
jwks_reachable — explicit GET against jwks_uri succeeded
supported_alg_values — verbatim id_token_signing_alg_values_supported
iss_param_supported — RFC 9207 advertisement parsed off the disco doc
issuer_echo — the iss URL we were called with
authorization_url,
token_url, jwks_uri,
userinfo_endpoint — discovery doc fields for the GUI to preview
errors[] — per-leg failure messages
}
HTTP status:
- 200 even when individual checks fail (the per-leg errors[] carries
detail so the GUI renders per-check status rows)
- 400 only when the request body is malformed or issuer_url empty
- 500 only when the service-layer call itself errors
WHY.
Pre-fix, operators configuring OIDC had to create a provider, then
hit /refresh, then read the audit log to figure out whether the
discovery doc was reachable / whether the IdP advertises HS256
(the alg-downgrade trap). The GUI rendered no per-check feedback.
MED-5 closes the dry-run gap for the same reason every Issuer +
Target connector has a 'Test connection' button — operator
experience parity.
HOW.
internal/auth/oidc/test_discovery.go (NEW):
- TestDiscoveryResult struct with the per-leg projection.
- Service.TestDiscovery(ctx, issuerURL) drives the read-only
subset of getOrLoad: gooidc.NewProvider, claims parse for
alg-supported + iss-param-supported + jwks_uri + userinfo,
alg-downgrade defense, jwksReachable HTTP GET.
- jwksReachable is a package-level closure so tests can swap.
internal/api/handler/auth_session_oidc.go:
- TestProvider HTTP handler. Uses an inline discoveryTester
interface to type-assert against the OIDCAuthHandshaker stub
(the production Service satisfies; test stubs supply via
explicit method). Audit row 'auth.oidc_provider_tested' carries
the summary fields.
internal/api/router/router.go:
- Wired as POST /api/v1/auth/oidc/test under rbacGate('auth.oidc.create').
internal/api/handler/auth_session_oidc_test.go:
- stubOIDCSvc gains testResult + testErr fields + TestDiscovery
method so it satisfies the inline interface.
- 3 regression tests: happy path, missing issuer_url -> 400,
discovery-failure -> 200 with errors[] populated.
VERIFY.
- go vet ./internal/auth/oidc/... ./internal/api/handler/...
./internal/api/router/... PASS
- go test -short -count=1 -run TestProvider
./internal/api/handler/... PASS (3/3)
- go test -short -count=1 ./internal/auth/oidc/... PASS (3.7s)
- go test -short -count=1 ./internal/api/handler/... PASS (4.7s)
Out of scope for this commit: the GUI 'Test connection' button on
OIDCProviderDetailPage — queued with the GUI batch (items 10-19 of
HANDOFF.md).
Refs: cowork/auth-bundles-audit-2026-05-10.md MED-5
cowork/auth-bundles-fixes-2026-05-10/HANDOFF.md item 2
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