| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
|
|
|
|
| |
Review 3.1, part of finding 12: a signed value's payload bound path,
user, time and prev, but not the swarm. A user with the same name and
key in two swarms could have an envelope replayed from one into the
other, wherever the path holds no envelope yet (prev "").
The payload now names the swarm (`swarm`), and a node takes an envelope
only for its own. /auth/whoami says the swarm, and continuum-signed and
the example in api.md sign it. Wire version 44: nodes before this
refuse such envelopes, and those after refuse the old ones.
|
| |
|
|
|
|
|
|
|
| |
Review finding 11: token::verify checked only that the issuer is a
member, and a ban leaves the member entry. A compromised node's tokens
stayed valid after it was banned, until it was forgotten too.
A token issued by a banned node is now refused (BannedIssuer), as soon
as the ban reaches the node judging it.
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Review finding 8, second part: opening another member's dashboard
handed it a token reading everything (READ_ALL). A member writes its
own dashboard URL, so a malicious one received a read-everything token
under the operator's identity: /admin/config, /admin/changes,
/admin/log and the rest, on every node the user reaches.
The token handed over now reads the member list only (READ_MEMBERS, as
sent to subscribed nodes), which is enough to draw the map; the user
logs in at the other dashboard to see more. With 1151 it lasts five
minutes and isn't refreshed past them.
|
| |
|
|
|
|
|
|
|
|
|
|
| |
Review finding 8, first part: a refreshed token's lifetime came from
the refresh request, and it kept the session's end. So the five-minute
read-all token a dashboard hands to another member's refreshed into a
12-hour one, renewable for seven days.
A token asked to live less (`lifetime`, at login or refresh) now ends
its session with it: nobody refreshes it past its end, its holder
included, and a session begun from it (POST /auth/session) ends then
too.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Under a policy, a remake's decision was taken from its coordinator only.
A node aborting an expired remake whose coordinator is gone
(DELETE /admin/remakes, after abortableAt) was refused by its own
judgement (403), so such a remake could never be decided.
The decision is now also taken from a user who may write it (the
protocol writers), and an abort from any member once the remake expired
a grace period ago (abortableAt, by the coordinator's grace period in
the proposal). The rules have no clock of their own, so that is judged
by the time the change says it was made: the writer's word, so a member
could abort a remake early, as it could ask its coordinator to, but
never commit one. Before then, an abort stays a request the coordinator
applies.
|
| |
|
|
|
|
|
| |
Review 1.3: access.md said a user who may write _continuum/members may
only remove another member's entry, but the rule lets them write any of
it (addresses, dashboard). Those are operators, who may set an entry
right through the store, so the doc now says what the rule does.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Review finding 7, second part: a record carried into a new epoch whole
(proposal and decision in one change) was taken from any member, for
any remake ID. A member could write a forged record, decision included,
for a fresh ID in a single change.
The snapshot's epoch metadata now names the remake's coordinator, as
the quorum built it. The carried-record exception holds only in a
later epoch, only for the remake that made it, and only from the
coordinator its snapshot names, where there is no record yet. Wire
version 43: the snapshot, and so the epoch ID, changes.
The review suggested carrying the record inside the snapshot instead.
The snapshot can't hold the decision, which names the snapshot's own
hash. So the snapshot vouches for who may carry the record instead.
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Review finding 7, first part: the protocol-map rules looked at paths,
not actions. Any member could delete _continuum/members, /votes or
/remakes whole, or rewrite another remake's proposal (its coordinator)
and then write its decision.
What holds the members' entries, votes and remake records, and a
remake's record itself, are now made by a member only where there is
none; a proposal is written only where there is none. Replacing or
removing any of them is left to a user who may write there (the
protocol writers). An abort asked for stays any member's.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Review finding 5: vouching by (actor, seq) isn't bound to a hash. A
member can make a change under another member's actor at a seq that
member's signature covers. The change is then taken as vouched, and if
it breaks a rule, the honest member is refused as a whole and logged as
the one whose own change broke the rules.
A signature now vouches for its change and the changes of its actor it
builds on: in the document, as before; among received changes, those
it reaches through the batch's dependencies. A received change under an
actor at a seq whose change the document holds (a signature verified up
to it) is a fork: refused as forged, never as its actor's node's, not
told back in REFUSALS, and logged with the peer that brought it.
|
| |
|
|
|
|
|
|
|
|
|
|
| |
A node refusing a member as a whole sent it nothing, and lifted that
only when a change of the member's was taken again. But a member that
dropped what was refused (REFUSALS) starts its sync sessions over, and
a fresh session sends no changes until the other side answers: the two
waited for each other, and the member stayed refused.
The refusal now notes the member's run and epoch_seq when it began; a
member with another document since (it dropped what was refused, or
rejoined) is synced with again.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
The API checks the path a request asks for; the rules judge everything
the change does. Where they disagreed, the honest node's change was
refused by every other node, and with signatures required the node was
refused as a whole. The plan had both gates run the same judgement.
Under a policy, each change a node makes (its own writes and those
through the API) is now judged by rules::judge as receivers will judge
it, before it is signed or sent; one every node would refuse is rolled
back (the document forked at the heads before it, same actor: the
change never left) and the request refused with 403 (StoreError::
Refused). rules::judge_held, judging a change the document holds,
moves from swarm::refusals to access::rules for both.
The simulations that play a member past its own checks write with a
helper that bypasses them (forge).
Review finding 3 (the same judgement at both gates).
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
Two writes the API lets a user make were refused by the rules:
* DELETE /peers/{pk}, with write on _continuum/forgotten alone, writes
the forget record and removes the member's entry in one change; the
rules wanted write on the entry. Removing an entry is now also taken
in a change forgetting that member, from a user who may forget it.
* DELETE /admin/users/{name}/tokens by a user who manages users writes
_continuum/logouts/<name>; the rules wanted write there. One who may
write _continuum/users may now write anyone's logouts entry.
Review finding 3 (DELETE /peers, revoking tokens).
|
| |
|
|
|
|
|
|
|
|
|
|
| |
A write makes the maps on its way where there are none
(store::write_path); the rules judged each made map as a write at its
own path, so a user whose capability lies below a map not made yet
(write on servers/eu, a first PUT at servers/eu/0) had its first write
taken by its node and refused by every other. A map made where there
was none, in a change writing within it, is now judged by what is
written within it.
Review finding 3 (parent maps created on the way).
|
| |
|
|
|
|
|
|
|
|
| |
The rules read the policy at the change's dependencies only for strict
mode, so history from before the policy was judged by today's rules
when a late node caught up, or when REFUSALS had it judged again. A
change written while the document had no policy, or one this node
doesn't know, is now judged by none.
Review finding 6.
|
| |
|
|
|
|
|
|
|
|
| |
A node forgotten swarm-wide while alive cancels its forget record with
a change naming no user; the rules judged _continuum/forgotten by the
registry alone, so every node refused the cancellation and everything
the node wrote after it. A node may now write its own
_continuum/forgotten/<id>, as it may its member entry.
Review finding 4.
|
| |
|
|
|
|
|
|
| |
Opening another member's dashboard passes a token reading only, for
five minutes, in the URL's fragment; its login page begins a session
with it. Tokens may be asked for with a shorter lifetime.
Auth plan M3 (hand-off).
|
| |
|
|
|
|
|
|
|
| |
A node refusing changes a peer brought tells it which broke a rule; the
peer judges them itself, and if its rules refuse them too, drops them
with all built on them (its document forked without them, a fresh
actor), quarantining its own writes among them. Wire version 42.
Auth plan M6 (rejoin on taint).
|
| |
|
|
|
|
|
|
|
| |
With signatures required, a member whose own change broke a rule is
refused as a whole: sent nothing, shown in /peers (refused), in stats
(sync.refusedPeers) and on the dashboard, until a change of its is
taken again or the epoch changes.
Auth plan M6 (diverged standing).
|
| |
|
|
|
|
|
|
| |
The cookie lets in GET, HEAD and the session's own requests; anything
changing something brings the token itself, which no page of another
site or port can make a browser send. The dashboard's writes send it.
Auth plan M3 (browsers).
|
| |
|
|
|
|
|
|
| |
A refused change is remembered by its hash: offered again it is refused
without decoding, judging or logging, so is one built on it, and a peer
offering nothing else is answered later each time, up to a minute.
Auth plan M6 (re-sending).
|
| |
|
|
|
|
|
|
|
| |
GET /login without authentication: log in by password or with a token
(from a login by key). POST/DELETE /auth/session keep the token as an
HttpOnly, SameSite=Strict cookie; the dashboard sends a browser
without a user there and renews the session while open.
Auth plan M2/M3 (browsers).
|
| |
|
|
|
|
|
| |
Clients checking signatures or sealing read the registry and
_continuum/access: operators grant reading them.
Auth plan M7, M8 (docs).
|
| |
|
|
|
|
|
| |
continuum-signed seal and open, with age, for the readers declared or
CONTINUUM_READERS.
Auth plan M8.
|
| |
|
|
|
|
|
|
|
|
| |
cs1.<age file>: a value encrypted with age to its readers' SSH keys,
which no node decrypts. _continuum/access/sealed declares paths whose
values must be sealed, for named readers or anyone; nodes check the
recipients by age's key tags, at the API and on receipt.
Auth plan M8, reworked: sealed values instead of containers, readers
as users only (nodes hold no keys).
|
| |
|
|
|
|
|
|
| |
scripts/continuum-signed (ssh-keygen, curl, jq): login by key, put and
delete signed values, get envelopes, verify one against its user's
keys.
Auth plan M7.
|
| |
|
|
|
|
|
| |
The first users' SSH keys, recorded at genesis with their entries, so a
swarm can be strict from its start.
Auth plan M7.
|
| |
|
|
|
|
|
|
| |
POST /auth/challenge and /auth/login/key: a node-signed challenge,
valid five minutes and taken once, signed with one of the user's SSH
keys (ssh-keygen -Y sign -n continuum-login), for a token.
Auth plan M7 (key login, M2b).
|
| |
|
|
|
|
|
|
|
| |
Inspection gives each operation's kind; under strict every node
refuses, at a signed place, anything but an envelope that checks and
replaces the one there (deleting first as replacing does), anything
within one, and above one anything replacing what holds one.
Auth plan M7.
|
| |
|
|
|
|
|
|
|
| |
Under a policy, a change by a node that isn't a member is refused with
all built on it: a node's registration is written before any write of
its own or through the API, not after (the registration itself
exempt).
Auth plan M6 (fix).
|
| |
|
|
|
|
|
|
|
| |
PUT with application/continuum-signed writes an envelope where values
are signed (403/409 saying why); reads open envelopes and name the
signer (x-continuum-signed-by), ?raw=true shows them. Under strict,
unsigned writes reaching a signed value and the users API are 409.
Auth plan M7.
|
| |
|
|
|
|
|
|
| |
_continuum/logouts/<name> holds when a user's tokens were last revoked,
written by the user itself or by one who may manage users, so users'
entries can be signed by their managers alone.
Auth plan M7.
|
| |
|
|
|
|
|
|
| |
_continuum/banned/<node ID>: every node refuses the banned node's
changes from then on (judged as the ban stood) and leaves its
handshakes unanswered.
Auth plan M6.
|
| |
|
|
|
|
|
|
| |
"signatures": "required": a change counts only once a signature by its
committer vouches for it, and waits until then; every node then signs
every change it makes.
Auth plan M6.
|
| |
|
|
|
|
|
|
| |
_continuum/access/policy ({"version": 1}) has every node screen every
change it receives, on every path changes come in. A policy a node
doesn't know stops its writes through the API. GET /admin/refused.
Auth plan M6.
|
| |
|
|
|
|
|
| |
Each tick's messages of a subscribed node, listed in the console with
this node's own, from its own stream.
Auth plan M3 (live data from every reachable node).
|
| |
|
|
|
|
|
| |
The page reads a subscribed node's message counts from it too, and
draws them as dots on the map, as this node's own.
Auth plan M3 (live data from every reachable node).
|
| |
|
|
|
|
|
|
|
| |
GET /admin/dashboard/links/own and its event stream: a node's own links,
as LINKS_REPLY carried them, for other members' dashboards with a
token. CORS for the members' dashboard origins and --cors-origins,
without credentials.
Auth plan M3.
|
| |
|
|
|
|
|
|
|
| |
POST /auth/login (by htpasswd or the proxy), /auth/refresh,
/auth/logout, GET /auth/whoami; every request may bring
Authorization: Bearer instead of a password. --token-lifetime and
--session-lifetime.
Auth plan M2.
|
| |
|
|
|
|
|
|
| |
/admin/users: list, add (one or several), remove, disable, grant and
revoke capabilities; each one change, refused if it would lock its
writer out. Capabilities as the store's paths name them.
Auth plan M1.
|
| |
|
|
|
|
|
| |
The first users come only from --bootstrap-users; the genesis node
warns of htpasswd users that aren't among them.
Auth plan M1.
|
| |
|
|
|
|
|
| |
The dashboard's document box is read through the store, as its user
may, and the page is told only of changes where its user may read.
Auth plan M1 (the dashboard).
|
| |
|
|
|
|
|
|
| |
Swarms started before the registry keep working without one; the
genesis node's options for a registry apply only to new swarms. What
tests and migration leave is noted in future-work.
Auth plan M1, bootstrap and migration (2.5).
|
| |
|
|
|
|
|
|
|
| |
A write that would leave its own writer unable to manage users
(deleting, disabling or narrowing its entry, removing the registry) is
refused; --protocol-writers can set a registry right that nobody may
manage any more.
Auth plan M1.
|
| |
|
|
|
|
|
|
|
| |
Every request is judged by the registry the node holds: store reads
pruned to what the user may read, writes refused where it may not,
admin endpoints by protocol capabilities. Without a registry, as
before (--protocol-writers for protocol data).
Auth plan M1.
|
|
|
--bootstrap-users gives a new swarm a registry from its first change,
each first user with everything; other users may do nothing until
added. Without it the swarm has no registry and works as before.
Auth plan M1.
|
