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authorYusuke Endoh <mame@ruby-lang.org>2019-10-01 12:29:18 +0900
committerYusuke Endoh <mame@ruby-lang.org>2019-10-01 19:19:56 +0900
commit3ce238b5f9795581eb84114dcfbdf4aa086bfecc (patch)
treee1e07f2e4bce0656e624a65df027ac456a7690c7 /lib/webrick
parent36e057e26ef2104bc2349799d6c52d22bb1c7d03 (diff)
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>
Diffstat (limited to 'lib/webrick')
-rw-r--r--lib/webrick/httpresponse.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/webrick/httpresponse.rb b/lib/webrick/httpresponse.rb
index 62d8056cf7..f61d53230a 100644
--- a/lib/webrick/httpresponse.rb
+++ b/lib/webrick/httpresponse.rb
@@ -400,7 +400,8 @@ 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