Fix/mesh isolation 2 disclosure - #160
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All tenant servers share one MongoDB database and are separated only by the
`domain` field, but both of these routines are written for upstream's "one
server owns the whole database" assumption and act on everything they can see.
cleanup() runs unconditionally on every boot. It rewrote every tenant's user
and mesh documents, and ended with
deleteMany({ meshid: { $exists: true, $nin: meshlist } })
which deletes anything whose device group is not in the list it had just read.
That statement sat outside the `if (err == null && docs.length > 0)` guard, so a
transient read error left meshlist empty and `$nin: []` matched every document
with a meshid — one boot could wipe every tenant's nodes. Reproduced on a
two-domain database: a tenant A boot deleted a tenant B device.
The call is now gated out of OpenFrame mode and the delete is removed from the
MongoDB branch entirely, so it cannot fire if the image is run without the flag.
What cleanup() repairs (pre-1.0 field formats, legacy event/power/smbios rows in
the main collection) never existed in this database; routine housekeeping is done
by RemoveMeshDocuments(), the explicit Remove() calls on device deletion, and the
TTL indexes.
removeInactiveDevices() runs hourly. It collected domains out of the fleet-wide
device-group cache, so one tenant enabling expireDevs made all servers delete
that tenant's devices — using the local pod's connectivity state, which never
holds another tenant's agents, so a foreign pod could delete a device that was
online on its own. It is now limited to this pod's domain.
Adds a write guard as a second layer: Set/SetUser/Remove refuse documents whose
domain is not ours, with OPENFRAME_CROSS_TENANT_WRITES=allow as a rollback
switch. It is the only way to show "zero writes outside our domain" in
production, since these writes never pass through the gateway.
Tests run against a real two-domain database; see test/README.md.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WAcuUJKfVLEX4KpvpKd1pS
…nant Two disclosure paths through the shared database, both reachable from a normal tenant admin session (in this product every logged-in user's browser holds one, since the frontend opens control.ashx with the mesh service credentials). getpluginpermissionlist answered with four unscoped GetAllType calls, returning every user in the fleet — ids are user/<domain>/<name>, so other tenants' domain keys and admin names come with it — plus every user group, device group and device. Its sibling command 'users' does filter by domain, so this handler was bypassing the filter its neighbour applies. Verified against a two-domain database from a real admin session: before, both tenants came back; now, one. changeuserpass looked up parent.users[command.userid] with no domain check at all. The guard above it never trips, because our bootstrap admin *is* a full site administrator, and the group check passes for an admin with no groups — so a tenant admin could set the password and strip 2FA on another tenant's admin, with the write landing in the shared database. Adds the same domain check 'deleteuser' already had, and the same to notifyuser, meshmessenger, emailUser, smsUser and msgUser, which had the same shape (their transports are not configured today, but the lookup was equally unscoped). Adds GetAllTypeForDomain for the scoped reads. It deliberately does not project the type field away the way GetAllTypeNoTypeField does: callers keep these documents and write them back, and a document saved without `type` stops being returned by every type query. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WAcuUJKfVLEX4KpvpKd1pS
kirill-567
approved these changes
Sep 8, 2026
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