Merge pull request from GHSA-3fjr-858r-92rw
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* Fix insufficient origin validation

* Bump version to v4.0.13
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Claire 2024-02-01 15:56:46 +01:00 committed by GitHub
parent 60a78595b0
commit befd534eb8
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19 changed files with 49 additions and 46 deletions

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@ -5,9 +5,15 @@ All notable changes to this project will be documented in this file.
## End of life notice ## End of life notice
**The 4.0.x branch will not receive any update after 2023-10-31.** **The 4.0.x branch has reached its end of life and will not receive any further update.**
This means that no security fix will be made available for this branch after this date, and you will need to update to a more recent version (such as the 4.2.x branch) to receive security fixes. This means that no security fix will be made available for this branch after this date, and you will need to update to a more recent version (such as the 4.2.x branch) to receive security fixes.
## [4.0.13] - 2024-02-01
### Security
- Fix insufficient origin validation (CVE-2024-23832, [GHSA-3fjr-858r-92rw](https://github.com/mastodon/mastodon/security/advisories/GHSA-3fjr-858r-92rw))
## [4.0.12] - 2023-10-10 ## [4.0.12] - 2023-10-10
### Changed ### Changed

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@ -13,6 +13,5 @@ A "vulnerability in Mastodon" is a vulnerability in the code distributed through
| Version | Supported | | Version | Supported |
| ------- | ------------------ | | ------- | ------------------ |
| 4.1.x | Yes | | 4.1.x | Yes |
| 4.0.x | Until 2023-10-31 | | 4.0.x | No |
| 3.5.x | Until 2023-12-31 | | < 4.0 | No |
| < 3.5 | No |

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@ -246,7 +246,7 @@ module SignatureVerification
stoplight_wrap_request { ResolveAccountService.new.call(key_id.gsub(/\Aacct:/, ''), suppress_errors: false) } stoplight_wrap_request { ResolveAccountService.new.call(key_id.gsub(/\Aacct:/, ''), suppress_errors: false) }
elsif !ActivityPub::TagManager.instance.local_uri?(key_id) elsif !ActivityPub::TagManager.instance.local_uri?(key_id)
account = ActivityPub::TagManager.instance.uri_to_actor(key_id) account = ActivityPub::TagManager.instance.uri_to_actor(key_id)
account ||= stoplight_wrap_request { ActivityPub::FetchRemoteKeyService.new.call(key_id, id: false, suppress_errors: false) } account ||= stoplight_wrap_request { ActivityPub::FetchRemoteKeyService.new.call(key_id, suppress_errors: false) }
account account
end end
rescue Mastodon::PrivateNetworkAddressError => e rescue Mastodon::PrivateNetworkAddressError => e

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@ -157,8 +157,8 @@ module JsonLdHelper
end end
end end
def fetch_resource(uri, id, on_behalf_of = nil) def fetch_resource(uri, id_is_known, on_behalf_of = nil)
unless id unless id_is_known
json = fetch_resource_without_id_validation(uri, on_behalf_of) json = fetch_resource_without_id_validation(uri, on_behalf_of)
return if !json.is_a?(Hash) || unsupported_uri_scheme?(json['id']) return if !json.is_a?(Hash) || unsupported_uri_scheme?(json['id'])

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@ -152,7 +152,9 @@ class ActivityPub::Activity
def fetch_remote_original_status def fetch_remote_original_status
if object_uri.start_with?('http') if object_uri.start_with?('http')
return if ActivityPub::TagManager.instance.local_uri?(object_uri) return if ActivityPub::TagManager.instance.local_uri?(object_uri)
ActivityPub::FetchRemoteStatusService.new.call(object_uri, id: true, on_behalf_of: @account.followers.local.first)
ActivityPub::FetchRemoteStatusService.new.call(object_uri, on_behalf_of: @account.followers.local.first)
elsif @object['url'].present? elsif @object['url'].present?
::FetchRemoteStatusService.new.call(@object['url']) ::FetchRemoteStatusService.new.call(@object['url'])
end end

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@ -19,7 +19,7 @@ class ActivityPub::LinkedDataSignature
return unless type == 'RsaSignature2017' return unless type == 'RsaSignature2017'
creator = ActivityPub::TagManager.instance.uri_to_actor(creator_uri) creator = ActivityPub::TagManager.instance.uri_to_actor(creator_uri)
creator ||= ActivityPub::FetchRemoteKeyService.new.call(creator_uri, id: false) creator ||= ActivityPub::FetchRemoteKeyService.new.call(creator_uri)
return if creator.nil? return if creator.nil?

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@ -2,7 +2,7 @@
class ActivityPub::FetchRemoteAccountService < ActivityPub::FetchRemoteActorService class ActivityPub::FetchRemoteAccountService < ActivityPub::FetchRemoteActorService
# Does a WebFinger roundtrip on each call, unless `only_key` is true # Does a WebFinger roundtrip on each call, unless `only_key` is true
def call(uri, id: true, prefetched_body: nil, break_on_redirect: false, only_key: false, suppress_errors: true) def call(uri, prefetched_body: nil, break_on_redirect: false, only_key: false, suppress_errors: true)
actor = super actor = super
return actor if actor.nil? || actor.is_a?(Account) return actor if actor.nil? || actor.is_a?(Account)

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@ -10,15 +10,15 @@ class ActivityPub::FetchRemoteActorService < BaseService
SUPPORTED_TYPES = %w(Application Group Organization Person Service).freeze SUPPORTED_TYPES = %w(Application Group Organization Person Service).freeze
# Does a WebFinger roundtrip on each call, unless `only_key` is true # Does a WebFinger roundtrip on each call, unless `only_key` is true
def call(uri, id: true, prefetched_body: nil, break_on_redirect: false, only_key: false, suppress_errors: true) def call(uri, prefetched_body: nil, break_on_redirect: false, only_key: false, suppress_errors: true)
return if domain_not_allowed?(uri) return if domain_not_allowed?(uri)
return ActivityPub::TagManager.instance.uri_to_actor(uri) if ActivityPub::TagManager.instance.local_uri?(uri) return ActivityPub::TagManager.instance.uri_to_actor(uri) if ActivityPub::TagManager.instance.local_uri?(uri)
@json = begin @json = begin
if prefetched_body.nil? if prefetched_body.nil?
fetch_resource(uri, id) fetch_resource(uri, true)
else else
body_to_json(prefetched_body, compare_id: id ? uri : nil) body_to_json(prefetched_body, compare_id: uri)
end end
rescue Oj::ParseError rescue Oj::ParseError
raise Error, "Error parsing JSON-LD document #{uri}" raise Error, "Error parsing JSON-LD document #{uri}"

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@ -6,23 +6,10 @@ class ActivityPub::FetchRemoteKeyService < BaseService
class Error < StandardError; end class Error < StandardError; end
# Returns actor that owns the key # Returns actor that owns the key
def call(uri, id: true, prefetched_body: nil, suppress_errors: true) def call(uri, suppress_errors: true)
raise Error, 'No key URI given' if uri.blank? raise Error, 'No key URI given' if uri.blank?
if prefetched_body.nil? @json = fetch_resource(uri, false)
if id
@json = fetch_resource_without_id_validation(uri)
if actor_type?
@json = fetch_resource(@json['id'], true)
elsif uri != @json['id']
raise Error, "Fetched URI #{uri} has wrong id #{@json['id']}"
end
else
@json = fetch_resource(uri, id)
end
else
@json = body_to_json(prefetched_body, compare_id: id ? uri : nil)
end
raise Error, "Unable to fetch key JSON at #{uri}" if @json.nil? raise Error, "Unable to fetch key JSON at #{uri}" if @json.nil?
raise Error, "Unsupported JSON-LD context for document #{uri}" unless supported_context?(@json) raise Error, "Unsupported JSON-LD context for document #{uri}" unless supported_context?(@json)

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@ -4,12 +4,12 @@ class ActivityPub::FetchRemoteStatusService < BaseService
include JsonLdHelper include JsonLdHelper
# Should be called when uri has already been checked for locality # Should be called when uri has already been checked for locality
def call(uri, id: true, prefetched_body: nil, on_behalf_of: nil) def call(uri, prefetched_body: nil, on_behalf_of: nil)
@json = begin @json = begin
if prefetched_body.nil? if prefetched_body.nil?
fetch_resource(uri, id, on_behalf_of) fetch_resource(uri, true, on_behalf_of)
else else
body_to_json(prefetched_body, compare_id: id ? uri : nil) body_to_json(prefetched_body, compare_id: uri)
end end
end end
@ -52,7 +52,7 @@ class ActivityPub::FetchRemoteStatusService < BaseService
def account_from_uri(uri) def account_from_uri(uri)
actor = ActivityPub::TagManager.instance.uri_to_resource(uri, Account) actor = ActivityPub::TagManager.instance.uri_to_resource(uri, Account)
actor = ActivityPub::FetchRemoteAccountService.new.call(uri, id: true) if actor.nil? || actor.possibly_stale? actor = ActivityPub::FetchRemoteAccountService.new.call(uri) if actor.nil? || actor.possibly_stale?
actor actor
end end

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@ -257,7 +257,7 @@ class ActivityPub::ProcessAccountService < BaseService
def moved_account def moved_account
account = ActivityPub::TagManager.instance.uri_to_resource(@json['movedTo'], Account) account = ActivityPub::TagManager.instance.uri_to_resource(@json['movedTo'], Account)
account ||= ActivityPub::FetchRemoteAccountService.new.call(@json['movedTo'], id: true, break_on_redirect: true) account ||= ActivityPub::FetchRemoteAccountService.new.call(@json['movedTo'], break_on_redirect: true)
account account
end end

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@ -47,7 +47,15 @@ class FetchResourceService < BaseService
body = response.body_with_limit body = response.body_with_limit
json = body_to_json(body) json = body_to_json(body)
[json['id'], { prefetched_body: body, id: true }] if supported_context?(json) && (equals_or_includes_any?(json['type'], ActivityPub::FetchRemoteActorService::SUPPORTED_TYPES) || expected_type?(json)) return unless supported_context?(json) && (equals_or_includes_any?(json['type'], ActivityPub::FetchRemoteActorService::SUPPORTED_TYPES) || expected_type?(json))
if json['id'] != @url
return if terminal
return process(json['id'], terminal: true)
end
[@url, { prefetched_body: body }]
elsif !terminal elsif !terminal
link_header = response['Link'] && parse_link_header(response) link_header = response['Link'] && parse_link_header(response)

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@ -56,7 +56,7 @@ services:
web: web:
build: . build: .
image: ghcr.io/mastodon/mastodon:v4.0.12 image: ghcr.io/mastodon/mastodon:v4.0.13
restart: always restart: always
env_file: .env.production env_file: .env.production
command: bash -c "rm -f /mastodon/tmp/pids/server.pid; bundle exec rails s -p 3000" command: bash -c "rm -f /mastodon/tmp/pids/server.pid; bundle exec rails s -p 3000"
@ -77,7 +77,7 @@ services:
streaming: streaming:
build: . build: .
image: ghcr.io/mastodon/mastodon:v4.0.12 image: ghcr.io/mastodon/mastodon:v4.0.13
restart: always restart: always
env_file: .env.production env_file: .env.production
command: node ./streaming command: node ./streaming
@ -95,7 +95,7 @@ services:
sidekiq: sidekiq:
build: . build: .
image: ghcr.io/mastodon/mastodon:v4.0.12 image: ghcr.io/mastodon/mastodon:v4.0.13
restart: always restart: always
env_file: .env.production env_file: .env.production
command: bundle exec sidekiq command: bundle exec sidekiq

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@ -13,7 +13,7 @@ module Mastodon
end end
def patch def patch
12 13
end end
def flags def flags

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@ -16,7 +16,7 @@ RSpec.describe ActivityPub::FetchRemoteAccountService, type: :service do
end end
describe '#call' do describe '#call' do
let(:account) { subject.call('https://example.com/alice', id: true) } let(:account) { subject.call('https://example.com/alice') }
shared_examples 'sets profile data' do shared_examples 'sets profile data' do
it 'returns an account' do it 'returns an account' do

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@ -16,7 +16,7 @@ RSpec.describe ActivityPub::FetchRemoteActorService, type: :service do
end end
describe '#call' do describe '#call' do
let(:account) { subject.call('https://example.com/alice', id: true) } let(:account) { subject.call('https://example.com/alice') }
shared_examples 'sets profile data' do shared_examples 'sets profile data' do
it 'returns an account' do it 'returns an account' do

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@ -43,7 +43,7 @@ RSpec.describe ActivityPub::FetchRemoteKeyService, type: :service do
end end
describe '#call' do describe '#call' do
let(:account) { subject.call(public_key_id, id: false) } let(:account) { subject.call(public_key_id) }
context 'when the key is a sub-object from the actor' do context 'when the key is a sub-object from the actor' do
before do before do

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@ -54,7 +54,7 @@ RSpec.describe FetchResourceService, type: :service do
let(:json) do let(:json) do
{ {
id: 1, id: 'http://example.com/foo',
'@context': ActivityPub::TagManager::CONTEXT, '@context': ActivityPub::TagManager::CONTEXT,
type: 'Note', type: 'Note',
}.to_json }.to_json
@ -79,14 +79,14 @@ RSpec.describe FetchResourceService, type: :service do
let(:content_type) { 'application/activity+json; charset=utf-8' } let(:content_type) { 'application/activity+json; charset=utf-8' }
let(:body) { json } let(:body) { json }
it { is_expected.to eq [1, { prefetched_body: body, id: true }] } it { is_expected.to eq ['http://example.com/foo', { prefetched_body: body }] }
end end
context 'when content type is ld+json with profile' do context 'when content type is ld+json with profile' do
let(:content_type) { 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' } let(:content_type) { 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' }
let(:body) { json } let(:body) { json }
it { is_expected.to eq [1, { prefetched_body: body, id: true }] } it { is_expected.to eq ['http://example.com/foo', { prefetched_body: body }] }
end end
before do before do
@ -97,14 +97,14 @@ RSpec.describe FetchResourceService, type: :service do
context 'when link header is present' do context 'when link header is present' do
let(:headers) { { 'Link' => '<http://example.com/foo>; rel="alternate"; type="application/activity+json"', } } let(:headers) { { 'Link' => '<http://example.com/foo>; rel="alternate"; type="application/activity+json"', } }
it { is_expected.to eq [1, { prefetched_body: json, id: true }] } it { is_expected.to eq ['http://example.com/foo', { prefetched_body: json }] }
end end
context 'when content type is text/html' do context 'when content type is text/html' do
let(:content_type) { 'text/html' } let(:content_type) { 'text/html' }
let(:body) { '<html><head><link rel="alternate" href="http://example.com/foo" type="application/activity+json"/></head></html>' } let(:body) { '<html><head><link rel="alternate" href="http://example.com/foo" type="application/activity+json"/></head></html>' }
it { is_expected.to eq [1, { prefetched_body: json, id: true }] } it { is_expected.to eq ['http://example.com/foo', { prefetched_body: json }] }
end end
end end
end end

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@ -139,6 +139,7 @@ describe ResolveURLService, type: :service do
stub_request(:get, url).to_return(status: 302, headers: { 'Location' => status_url }) stub_request(:get, url).to_return(status: 302, headers: { 'Location' => status_url })
body = ActiveModelSerializers::SerializableResource.new(status, serializer: ActivityPub::NoteSerializer, adapter: ActivityPub::Adapter).to_json body = ActiveModelSerializers::SerializableResource.new(status, serializer: ActivityPub::NoteSerializer, adapter: ActivityPub::Adapter).to_json
stub_request(:get, status_url).to_return(body: body, headers: { 'Content-Type' => 'application/activity+json' }) stub_request(:get, status_url).to_return(body: body, headers: { 'Content-Type' => 'application/activity+json' })
stub_request(:get, uri).to_return(body: body, headers: { 'Content-Type' => 'application/activity+json' })
end end
it 'returns status by url' do it 'returns status by url' do