ConfirmablePasswordController checked the local hash and nothing else:
Auth::guard('web')->validate(['email' => ..., 'password' => ...])
An account provisioned from a directory has no local password. It holds a
Str::password(64) generated at provisioning time that nobody has ever
seen, and the application knows this -- LdapAuthenticator::isDirectoryAccount()
is the question, and the sign-in form asks it before deciding what to
check. This screen did not, so it refused those accounts the only password
they have.
That is not a cosmetic refusal. `password.confirm` stands in front of
enrolling in two-factor, so a directory-provisioned client could not enrol
at all. Set TwoFactorEnforcement to `clients` or `all` and EnforceTwoFactor
redirects every request they make to two-factor.show -- a screen whose
"enable" button leads to a door they cannot open. PR #1708 fixed the
routing half of that ("Let an enforced user reach the far side of the
confirm-password screen"); this is the credential half.
The rule now lives in one place. PasswordVerification is the sibling of
SignIn on the other side of the line SignIn draws -- SignIn is everything
after a credential checks out, this is the one question asked before it --
and it exists for the reason SignIn gives for existing: "the way they get
broken is by being written twice". LoginRequest keeps its ordering, its
provisioning and its rate limiting, and delegates the check itself.
Behaviour preserved exactly on the sign-in path: local hash first so an
account that answers locally generates no directory traffic, directory
only for accounts whose credentials live there, the stale-hash re-hash on
the local branch only, and the ldap_dn stamp on the directory branch. All
23 existing LDAP sign-in tests pass unchanged.
One thing this closes on the way past. Because the old check went straight
to the local hash, a directory account's placeholder *would* have confirmed
if anybody ever learned it -- a door the sign-in form does not have, since
it skips the local branch for those accounts. It now behaves the same on
both screens; there is a test.
**What this does not fix, and should be read as a limitation.** Accounts
provisioned by a social provider are in the same position -- a random local
password nobody holds -- and they are not directory accounts, so this
changes nothing for them. Their route to a local password is the password
reset, which #1748 made work end to end by moving auth_source to Local when
the reset completes. A social account that has never done that still cannot
confirm a password, and so still cannot enrol in two-factor.
Tests: three fail against the unfixed pair, including the placeholder case
above. Two more pin what must not change -- a wrong directory password is
still refused, and a local account with LDAP switched on still confirms
against its own hash.
POST /confirm-password verified the account's password and counted
nothing. Forty wrong guesses, forty identical refusals, no lockout, no
Retry-After, no log line.
routes/auth.php opens by requiring the opposite:
**Every `throttle:` below names its own bucket, and must.**
and every other route in the file has one. POST login is the deliberate
exception, and the file says why -- LoginRequest limits it per email *and*
IP, which is a stronger boundary than a per-IP count. confirm-password had
neither of those things.
It is the wrong door to leave unlatched. Re-proving the password is what
stands between a stolen session and disabling two-factor, regenerating
recovery codes, or minting an API token -- credentials that outlive the
session, which is the reason routes/settings.php gives for putting those
routes behind it. An attacker who already holds the session can sit on
this endpoint until the password falls out of it, and then has the
password for everything else too.
Two more with the same shape, in routes/settings.php:
- PUT /settings/password -- update() validates `current_password`.
- DELETE /settings/profile -- destroy() validates `current_password`.
Both were equally uncounted, and both answer the same question in the same
way, so an attacker refused at one door simply used the next. Fixing one
of three would have been cosmetic.
All three get named buckets at 6/1, matching the credential-facing routes
already in auth.php. Named rather than bare: a bare `throttle:` keys on
sha1(domain|ip) or sha1(user_id) with no route in it, which is how six
share links once locked a visitor out of the two-factor challenge.
Not changed: POST /logout has no bucket either and does not need one -- it
checks no credential and reveals nothing by being repeated. PATCH
/settings/profile likewise.
Tests: three that fail against the unthrottled routes, and two that pin
what the buckets must not do -- exhausting one must not spend another's,
and one account's guesses must not lock a different account out.
Two accounts reach the same reset with opposite needs, and it answered both by writing a hash and hoping.
A provider account is asked for something it cannot do. The Connected accounts screen refuses to release an account's last provider -- "Set a password first, then disconnect Google" -- and nothing set auth_source back to Local, so the screen went on asking for what had just been done, with no way out from inside the application. AuthSource already states the rule that closes it, for this case by name: a social account may later set a real password, and social only means the account came into existence without anybody choosing one. A reset by emailed token is where somebody chooses one, and the prop the screen reads is literally auth_source === Local under the name has_local_password.
A directory account is told something untrue. isDirectoryAccount() means the local hash is not consulted at all, so the same reset wrote a password that could never sign anybody in and reported success -- including when the directory it points at is gone, which is exactly the situation that sends somebody to a reset.
The reset now asks where the account's credentials live. social becomes Local, because the new password is the credential now. A directory account is refused, with the reason, and nothing about it moves -- writing Local there would not record something that had happened, it would take the account off its directory as a side effect of a password reset, which is an administrator's decision and already lives in AccountConversion with the password requirement and activity entry that belong to it. Everything else is byte for byte as before.
Verified before merging: 20 passed on the trial-merge, 2 failed / 18 passed with app/ reset, and the wider suites green -- tests/Feature/Auth 96 passed, tests/Feature/Identity 302 passed. Four properties were checked in the framework rather than argued. PasswordBroker::reset() calls validateReset() before the callback, so the refusal only reaches somebody holding a token emailed to that address and nothing is enumerable. It deletes the token after the callback, so a throw leaves the link usable. Every use of AuthSource::Local is in ConnectedAccountsController -- the has_local_password prop and the last-provider guard -- so the social-to-Local flip grants exactly the ability the screen instructs the user to obtain and nothing else, and no new login capability at all, since password login already worked for social accounts. And the check is isDirectoryAccount() rather than an auth_source comparison because LDAP is client-only, so staff are not refused; the test for that is green either way.
One new string is English only for now: "This account signs in through your directory, so its password is not set here."
Reported and fixed by @denkfabrik-li.
Three middleware answer before HandleInertiaRequests and so repeat its 302-to-303 upgrade themselves: EnsureSetupIsComplete, EnsureUserIsActive and EnforceTwoFactor. This file has a write case for each. The rule has a second half -- a read still gets a plain 302, because a 303 there is an upgrade nobody asked for -- and that half was checked once, on the deactivation door, under the name "leaves a read alone in every one of those cases". So a change that upgraded reads at the setup door or the two-factor door would have gone through with the suite green and this test still claiming it would not.
One case per door now, as a dataset. The setup case reads a guest-reachable GET for the same reason the write case posts to /timezone: anything behind auth is answered by the guest redirect before EnsureSetupIsComplete ever sees it. No production code changes -- all three doors answer a read with 302 today, which is what the new cases assert.
Verified before merging: 9 passed on the trial-merge, and the mutation counter-check was run here rather than taken from the PR. With EnsureSetupIsComplete answering 303 to everything, this branch's file goes 1 failed / 8 passed and main's version goes 7 passed. The write case for that door stays green under the mutation, which is right: 303 is what a write should get. The mutation itself was confirmed live first, by making the middleware throw and watching the response become a 500 -- a first attempt at it bound no argument and was a silent no-op, which would have looked exactly like the new test failing to notice.
Reported and fixed by @denkfabrik-li.
Two accounts reach the same reset with opposite needs, and it treated
both as "write a hash and hope".
A provider-created account is told, on the Connected accounts screen, to
"set a password first, then disconnect Google" -- and doing it changed
nothing, because nothing ever set auth_source back to Local.
AccountConversion is the only writer, and that is an administrator. So the
screen went on asking for something that had already been done, and the
person could not release their last provider without help.
AuthSource states the rule that closes this: `social` means the account
came into existence without anybody choosing a password, and, in as many
words, "a social account may later set a real password". A reset by
emailed token is where somebody does. The screen's has_local_password prop
is literally auth_source === Local, so the write is what completes the
sentence it prints.
A directory account is the opposite case and gets the opposite answer.
isDirectoryAccount() means the local hash is not consulted at all, so the
reset reported success and left the person with a password that cannot
sign them in -- including when the directory it points at is gone, which
is exactly when somebody reaches for a reset. It is refused now, with the
reason, and nothing about the account moves: taking one off its directory
is an administrator's decision through AccountConversion, not a side
effect of a reset.
The refusal sits where the token has already been validated, not where the
link is asked for. That endpoint answers "A reset link will be sent if the
account exists" to everybody on purpose, and refusing there would tell a
stranger both that an address is an account and how it signs in. Throwing
before the write also leaves the token unspent, since PasswordBroker
deletes it after the callback returns.
Three middleware answer before HandleInertiaRequests and so have to
repeat its 302→303 upgrade themselves: EnsureSetupIsComplete,
EnsureUserIsActive and EnforceTwoFactor. This file has a write case for
each, and the rule has a second half -- a read still gets a plain 302,
because a 303 there would be an upgrade nobody asked for.
That half was checked once, on the deactivation door, under a name that
said otherwise: "leaves a read alone in every one of those cases". The
setup door and the two-factor door were not covered at all, so a change
that upgraded reads at either of them would have gone through with the
suite green and this test's name still claiming it would not.
Both are covered now, as a dataset with one case per door. The setup case
reads a guest-reachable GET for the same reason the write case posts to
/timezone: anything behind `auth` is answered by the guest redirect before
EnsureSetupIsComplete sees it.
No production code changes; today all three doors answer a read with 302,
which is what the new cases assert. Demonstrated by mutation rather than
reversion: making EnsureSetupIsComplete upgrade every redirect to 303
fails this file (1 failed / 8 passed) and passes the old one (7 passed).
The unique index on `email` spans soft-deleted rows -- AvailableEmailRule
is built on exactly that, so a deleted account keeps its address until
erasure removes the row. The registration form learns this from
validation. The machine paths have no form: a directory or an identity
provider hands over an address and provision() inserts it.
Measured on main, a client deleted last week signing in through a
provider that may auto-provision:
GET /auth/google/callback → 500 (QueryException, unique constraint)
Same shape through LDAP at POST /login. Nothing is created, nothing is
signed in, and what the person meets is a server error.
Both provisioners now ask ClientProvisioning::addressIsFree() first and
refuse. The social flow already has a refusal for an identity it cannot
provision -- "There is no account here for that address." -- which is also
all a stranger should learn: whether an address was once an account here
is not the provider's to publish. The LDAP flow falls through to the
ordinary failed sign-in.
Deliberately not resurrecting the deleted account. Restoring one because
a directory says the address exists is a decision for a person, not a
side effect of somebody logging in.
Two tests, one per path: the sign-in is refused, nothing is created, and
the trashed row is still trashed. Both go red without the fix.
An installation brought over from v1 before the migration tool learned to
relabel carries $2a$ or $2b$ digests in users.password. All three bcrypt
labels name the same algorithm and password_verify() reads any of them,
but Laravel's hasher asks password_get_info() first, gets "unknown", and
throws before it looks at the password -- so the login form answers 500
for every migrated account while accounts created in v2 sign in fine.
Relabelling the stored digest is the whole fix. Four bytes change; salt
and digest are the same, so nobody resets anything and there is no mail to
send. Guarded on password_get_info() reading bcrypt afterwards, so a
truncated row is left visibly broken rather than quietly rewritten to no
effect.
$2x$ is left alone on purpose -- it asks for the pre-2011 handling of
bytes above 127, so relabelling it would lock out anybody whose password
is not plain ASCII.
The 500 itself is asserted, not just the repair, so nobody removes the
migration later on the grounds that bcrypt is bcrypt.
Reported by @pabloalvarez44 in #1706.
#1680 fixed the redirect rendered from an exception and said plainly
what it did not cover: EnsureSetupIsComplete, EnsureAccountIsActive and
EnforceTwoFactor answer before HandleInertiaRequests is ever entered, so
a response they return never unwinds through Inertia's 302 to 303
upgrade either. Same 405, reached a different way — an account
deactivated while its owner was part-way through a form, or one being
made to enrol in two-factor.
The rule now lives in one place rather than four. Three copies of "if
the method is PUT, PATCH or DELETE" is how the fourth caller gets it
wrong, and WriteSafeRedirect can carry the explanation of why 303 —
which is worth more than the three lines it replaces, because nothing
about a bare setStatusCode call says what a browser does with a 302.
PUT /timezone is the route the setup test uses: it is one of only two
writes a guest can reach and the only one that middleware does not
exempt, so the case is real rather than defensive. All three new tests
were run against the unfixed middleware and fail there.
Extends the work of @denkfabrik-li, who found the gap and wrote it down.
A redirect born in exception handling - the guest redirect after an
expired login, above all - never travels back through the middleware
stack, so Inertia's usual 302-to-303 upgrade cannot reach it. Browsers
follow a 302 by replaying the request method on the redirect target
(only POST is downgraded to GET), so a widget save whose session just
died replays as PUT /login and fails with a 405 that hides the real
"please sign in again" (#1673).
Repeat the upgrade in the exception pipeline: any 302 answered to a
PUT, PATCH or DELETE becomes a 303. Reads keep their 302, POST needs
nothing - browsers already downgrade it.
Client file sharing, rebuilt from the ground up: a private area per
client, resumable uploads, folders, groups and categories, sharing with
expiry dates and download limits, comments, file versions, an activity
log, a REST API, and sixteen languages.
This repository begins here. ProjectSend 2 was developed privately, and
that development history is not published — the previous generation
remains available, with its own history, at projectsend/legacy.
Free software under the GNU General Public License v2, or (at your
option) any later version.
ignacionelson