Commit 509d8058 authored by kaniini's avatar kaniini

Merge branch 'security/ir-generic-containment' into 'develop'

security: IR-based generic object containment

See merge request pleroma/pleroma!1417
parents 93701c33 841314c2
......@@ -42,6 +42,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
- Admin API: changed json structure for saving config settings.
- RichMedia: parsers and their order are configured in `rich_media` config.
## [1.0.1] - 2019-07-14
### Security
- OStatus: fix an object spoofing vulnerability.
## [1.0.0] - 2019-06-29
### Security
- Mastodon API: Fix display names not being sanitized
......
......@@ -48,6 +48,9 @@ defmodule Pleroma.Object.Containment do
end
end
def contain_origin(id, %{"attributedTo" => actor} = params),
do: contain_origin(id, Map.put(params, "actor", actor))
def contain_origin_from_id(_id, %{"id" => nil}), do: :error
def contain_origin_from_id(id, %{"id" => other_id} = _params) do
......@@ -60,4 +63,9 @@ defmodule Pleroma.Object.Containment do
:error
end
end
def contain_child(%{"object" => %{"id" => id, "attributedTo" => _} = object}),
do: contain_origin(id, object)
def contain_child(_), do: :ok
end
......@@ -8,6 +8,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
alias Pleroma.Conversation
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Object.Containment
alias Pleroma.Object.Fetcher
alias Pleroma.Pagination
alias Pleroma.Repo
......@@ -126,6 +127,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
{:ok, map} <- MRF.filter(map),
{recipients, _, _} = get_recipients(map),
{:fake, false, map, recipients} <- {:fake, fake, map, recipients},
:ok <- Containment.contain_child(map),
{:ok, map, object} <- insert_full_object(map) do
{:ok, activity} =
Repo.insert(%Activity{
......
......@@ -68,4 +68,34 @@ defmodule Pleroma.Object.ContainmentTest do
"[error] Could not decode user at fetch https://n1u.moe/users/rye, {:error, :error}"
end
end
describe "containment of children" do
test "contain_child() catches spoofing attempts" do
data = %{
"id" => "http://example.com/whatever",
"type" => "Create",
"object" => %{
"id" => "http://example.net/~alyssa/activities/1234",
"attributedTo" => "http://example.org/~alyssa"
},
"actor" => "http://example.com/~bob"
}
:error = Containment.contain_child(data)
end
test "contain_child() allows correct origins" do
data = %{
"id" => "http://example.org/~alyssa/activities/5678",
"type" => "Create",
"object" => %{
"id" => "http://example.org/~alyssa/activities/1234",
"attributedTo" => "http://example.org/~alyssa"
},
"actor" => "http://example.org/~alyssa"
}
:ok = Containment.contain_child(data)
end
end
end
......@@ -416,6 +416,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
|> Map.put("attributedTo", user.ap_id)
|> Map.put("to", ["https://www.w3.org/ns/activitystreams#Public"])
|> Map.put("cc", [])
|> Map.put("id", user.ap_id <> "/activities/12345678")
data = Map.put(data, "object", object)
......@@ -439,6 +440,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
|> Map.put("attributedTo", user.ap_id)
|> Map.put("to", nil)
|> Map.put("cc", nil)
|> Map.put("id", user.ap_id <> "/activities/12345678")
data = Map.put(data, "object", object)
......
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