diff options
author | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2019-10-01 10:57:43 +0000 |
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committer | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2019-10-01 10:57:43 +0000 |
commit | 8d5d5d5609e94b4ab75512c8d036d049fd1af6c2 (patch) | |
tree | eac64868d4b025a40e7ab3802d3aa6654274cec7 | |
parent | 1443dfd7c30fc9847d8316bc522ff32da5fb6fc1 (diff) |
merge revision(s) 3ce238b5f9795581eb84114dcfbdf4aa086bfecc:
WEBrick: prevent response splitting and header injection
This is a follow up to d9d4a28f1cdd05a0e8dabb36d747d40bbcc30f16.
The commit prevented CRLR, but did not address an isolated CR or an
isolated LF.
Co-Authored-By: NARUSE, Yui <naruse@airemix.jp>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67808 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r-- | lib/webrick/httpresponse.rb | 3 | ||||
-rw-r--r-- | test/webrick/test_httpresponse.rb | 46 | ||||
-rw-r--r-- | version.h | 2 |
3 files changed, 47 insertions, 4 deletions
diff --git a/lib/webrick/httpresponse.rb b/lib/webrick/httpresponse.rb index 41a2510e6f..08f7797c4f 100644 --- a/lib/webrick/httpresponse.rb +++ b/lib/webrick/httpresponse.rb @@ -369,7 +369,8 @@ module WEBrick private def check_header(header_value) - if header_value =~ /\r\n/ + header_value = header_value.to_s + if /[\r\n]/ =~ header_value raise InvalidHeader else header_value diff --git a/test/webrick/test_httpresponse.rb b/test/webrick/test_httpresponse.rb index 75861caf8f..cde8efc8ed 100644 --- a/test/webrick/test_httpresponse.rb +++ b/test/webrick/test_httpresponse.rb @@ -29,7 +29,7 @@ module WEBrick @res.keep_alive = true end - def test_prevent_response_splitting_headers + def test_prevent_response_splitting_headers_crlf res['X-header'] = "malicious\r\nCookie: hack" io = StringIO.new res.send_response io @@ -39,7 +39,7 @@ module WEBrick refute_match 'hack', io.string end - def test_prevent_response_splitting_cookie_headers + def test_prevent_response_splitting_cookie_headers_crlf user_input = "malicious\r\nCookie: hack" res.cookies << WEBrick::Cookie.new('author', user_input) io = StringIO.new @@ -50,6 +50,48 @@ module WEBrick refute_match 'hack', io.string end + def test_prevent_response_splitting_headers_cr + res['X-header'] = "malicious\rCookie: hack" + io = StringIO.new + res.send_response io + io.rewind + res = Net::HTTPResponse.read_new(Net::BufferedIO.new(io)) + assert_equal '500', res.code + refute_match 'hack', io.string + end + + def test_prevent_response_splitting_cookie_headers_cr + user_input = "malicious\rCookie: hack" + res.cookies << WEBrick::Cookie.new('author', user_input) + io = StringIO.new + res.send_response io + io.rewind + res = Net::HTTPResponse.read_new(Net::BufferedIO.new(io)) + assert_equal '500', res.code + refute_match 'hack', io.string + end + + def test_prevent_response_splitting_headers_lf + res['X-header'] = "malicious\nCookie: hack" + io = StringIO.new + res.send_response io + io.rewind + res = Net::HTTPResponse.read_new(Net::BufferedIO.new(io)) + assert_equal '500', res.code + refute_match 'hack', io.string + end + + def test_prevent_response_splitting_cookie_headers_lf + user_input = "malicious\nCookie: hack" + res.cookies << WEBrick::Cookie.new('author', user_input) + io = StringIO.new + res.send_response io + io.rewind + res = Net::HTTPResponse.read_new(Net::BufferedIO.new(io)) + assert_equal '500', res.code + refute_match 'hack', io.string + end + def test_set_redirect_response_splitting url = "malicious\r\nCookie: hack" assert_raises(URI::InvalidURIError) do @@ -1,6 +1,6 @@ #define RUBY_VERSION "2.6.5" #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR -#define RUBY_PATCHLEVEL 112 +#define RUBY_PATCHLEVEL 113 #define RUBY_RELEASE_YEAR 2019 #define RUBY_RELEASE_MONTH 10 |