Acts on an adversarial review of the M1 auth and authorization code.
Five findings fixed; the rest recorded in SECURITY-FINDINGS.md as the
M1 exit criteria rather than left in a tool transcript.
- auth: serve /phone-number/request-password-reset, /phone-number/
reset-password and /sign-in/phone-number as 404. better-auth's
phoneNumber() registers all three unconditionally -- they are NOT
gated on emailAndPassword.enabled:false. Left live they form a
silent second credential path: request-password-reset stores an OTP
and sends no SMS (sendPasswordResetOTP was never configured, so the
owner is never told), reset-password mints a bcrypt credential row,
and sign-in/phone-number then accepts it forever with no OTP. The
OTP gate still applies, so this is not remote unauthenticated
takeover -- it converts one momentary OTP compromise into permanent
access the victim cannot see or rotate.
- auth: drop bearer(). It accepts the plaintext sessions.token column
as an Authorization credential, making any single leaked row a
replayable login. The mobile client it was added for is hypothetical.
- auth: pin E.164 via phoneNumberValidator, and add toE164/isE164 to
@linkder/shared. phone is UNIQUE and bans are per-account, so
"+34600111222" and "0034600111222" being separately storable meant
one handset could hold two accounts and a ban was escapable by
retyping. 15 tests.
- auth: NEXT_PUBLIC_APP_URL now throws in production instead of
falling back to localhost, which was silently dropping Secure and
the __Secure- prefix from the production session cookie.
- pro.upsertProfile: actually apply requiresReReview. It was computed,
returned to the client and never acted on, so a verified plumber
could become a verified electrician in another city by ignoring a
response flag. Now demotes to pending in the same transaction and
audits it. Trade changes count as material (they did not before) --
the licence is per-trade. Needed a verified -> pending edge in
VERIFICATION_GRAPH, which did not exist.
Removed two untracked scratch repro files. The impersonation repro
depended on bearer() for transport and no longer applies as written;
the underlying finding (resolveSession drops impersonatedBy, so admin
actions are audited as the victim) is open and documented.
typecheck, lint, build clean; 127 tests pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
