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| author | Aaron Patterson <aaron.patterson@gmail.com> | 2013-01-08 12:11:18 -0800 |
|---|---|---|
| committer | Aaron Patterson <aaron.patterson@gmail.com> | 2013-01-08 12:11:18 -0800 |
| commit | 88cc1688d0cb828c17706b41a8bd27870f2a2beb (patch) | |
| tree | 1001415a74aa4ba81cc8fc305f4cb7a0bc145afc /actionpack | |
| parent | f049016cd348627bf8db0d72382d7580bf802a79 (diff) | |
| parent | 2ced6f2f8a85957b160710ae5d9fb245a6106550 (diff) | |
| download | rails-88cc1688d0cb828c17706b41a8bd27870f2a2beb.tar.gz rails-88cc1688d0cb828c17706b41a8bd27870f2a2beb.tar.bz2 rails-88cc1688d0cb828c17706b41a8bd27870f2a2beb.zip | |
Merge branch 'master-sec'
* master-sec:
CVE-2013-0156: Safe XML params parsing. Doesn't allow symbols or yaml.
* Strip nils from collections on JSON and XML posts. [CVE-2013-0155] * dealing with empty hashes. Thanks Damien Mathieu
Diffstat (limited to 'actionpack')
5 files changed, 51 insertions, 5 deletions
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb index 452809a689..31b36eedb0 100644 --- a/actionpack/lib/action_dispatch/http/request.rb +++ b/actionpack/lib/action_dispatch/http/request.rb @@ -276,15 +276,14 @@ module ActionDispatch LOCALHOST =~ remote_addr && LOCALHOST =~ remote_ip end - protected - # Remove nils from the params hash def deep_munge(hash) - hash.each_value do |v| + hash.each do |k, v| case v when Array v.grep(Hash) { |x| deep_munge(x) } v.compact! + hash[k] = nil if v.empty? when Hash deep_munge(v) end @@ -293,6 +292,8 @@ module ActionDispatch hash end + protected + def parse_query(qs) deep_munge(super) end diff --git a/actionpack/lib/action_dispatch/middleware/params_parser.rb b/actionpack/lib/action_dispatch/middleware/params_parser.rb index 2c98ca03a8..951f28f535 100644 --- a/actionpack/lib/action_dispatch/middleware/params_parser.rb +++ b/actionpack/lib/action_dispatch/middleware/params_parser.rb @@ -47,12 +47,12 @@ module ActionDispatch when Proc strategy.call(request.raw_post) when :xml_simple, :xml_node - data = Hash.from_xml(request.raw_post) || {} + data = request.deep_munge(Hash.from_xml(request.body.read) || {}) data.with_indifferent_access when :yaml YAML.load(request.raw_post) when :json - data = ActiveSupport::JSON.decode(request.raw_post) + data = request.deep_munge ActiveSupport::JSON.decode(request.body) data = {:_json => data} unless data.is_a?(Hash) data.with_indifferent_access else diff --git a/actionpack/test/controller/webservice_test.rb b/actionpack/test/controller/webservice_test.rb index c0b9833603..2602540fbe 100644 --- a/actionpack/test/controller/webservice_test.rb +++ b/actionpack/test/controller/webservice_test.rb @@ -116,6 +116,19 @@ class WebServiceTest < ActionDispatch::IntegrationTest end end + def test_post_xml_using_a_disallowed_type_attribute + $stderr = StringIO.new + with_test_route_set do + post '/', '<foo type="symbol">value</foo>', 'CONTENT_TYPE' => 'application/xml' + assert_response 500 + + post '/', '<foo type="yaml">value</foo>', 'CONTENT_TYPE' => 'application/xml' + assert_response 500 + end + ensure + $stderr = STDERR + end + def test_register_and_use_yaml with_test_route_set do with_params_parsers Mime::YAML => Proc.new { |d| YAML.load(d) } do diff --git a/actionpack/test/dispatch/request/json_params_parsing_test.rb b/actionpack/test/dispatch/request/json_params_parsing_test.rb index c0c3147e37..2c4a6c2147 100644 --- a/actionpack/test/dispatch/request/json_params_parsing_test.rb +++ b/actionpack/test/dispatch/request/json_params_parsing_test.rb @@ -30,6 +30,21 @@ class JsonParamsParsingTest < ActionDispatch::IntegrationTest ) end + test "nils are stripped from collections" do + assert_parses( + {"person" => nil}, + "{\"person\":[null]}", { 'CONTENT_TYPE' => 'application/json' } + ) + assert_parses( + {"person" => ['foo']}, + "{\"person\":[\"foo\",null]}", { 'CONTENT_TYPE' => 'application/json' } + ) + assert_parses( + {"person" => nil}, + "{\"person\":[null, null]}", { 'CONTENT_TYPE' => 'application/json' } + ) + end + test "logs error if parsing unsuccessful" do with_test_routing do output = StringIO.new diff --git a/actionpack/test/dispatch/request/xml_params_parsing_test.rb b/actionpack/test/dispatch/request/xml_params_parsing_test.rb index cb68667002..f13b64a3c7 100644 --- a/actionpack/test/dispatch/request/xml_params_parsing_test.rb +++ b/actionpack/test/dispatch/request/xml_params_parsing_test.rb @@ -30,6 +30,23 @@ class XmlParamsParsingTest < ActionDispatch::IntegrationTest assert_equal "<ok>bar</ok>", resp.body end + def assert_parses(expected, xml) + with_test_routing do + post "/parse", xml, default_headers + assert_response :ok + assert_equal(expected, TestController.last_request_parameters) + end + end + + test "nils are stripped from collections" do + assert_parses( + {"hash" => { "person" => nil} }, + "<hash><person type=\"array\"><person nil=\"true\"/></person></hash>") + assert_parses( + {"hash" => { "person" => ['foo']} }, + "<hash><person type=\"array\"><person>foo</person><person nil=\"true\"/></person>\n</hash>") + end + test "parses hash params" do with_test_routing do xml = "<person><name>David</name></person>" |