From 85106decc41f1695ff6fe54452168237fd0f98d0 Mon Sep 17 00:00:00 2001 From: Tamir Duberstein Date: Tue, 4 Jun 2013 15:01:08 -0700 Subject: make sure both headers are set before checking for ip spoofing --- actionpack/CHANGELOG.md | 8 ++++++++ actionpack/lib/action_dispatch/middleware/remote_ip.rb | 2 +- railties/test/application/middleware/remote_ip_test.rb | 10 ++++++++++ 3 files changed, 19 insertions(+), 1 deletion(-) diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md index 906592874d..31136d91b3 100644 --- a/actionpack/CHANGELOG.md +++ b/actionpack/CHANGELOG.md @@ -1,5 +1,13 @@ ## unreleased ## +* Fix `ActionDispatch::RemoteIp::GetIp#calculate_ip` to only check for spoofing + attacks if both `HTTP_CLIENT_IP` and `HTTP_X_FORWARDED_FOR` are set. + + Fixes #12410 + Backports #10844 + + *Tamir Duberstein* + * Fix the assert_recognizes test method so that it works when there are constraints on the querystring. diff --git a/actionpack/lib/action_dispatch/middleware/remote_ip.rb b/actionpack/lib/action_dispatch/middleware/remote_ip.rb index 66ece60860..f4545bd95e 100644 --- a/actionpack/lib/action_dispatch/middleware/remote_ip.rb +++ b/actionpack/lib/action_dispatch/middleware/remote_ip.rb @@ -49,7 +49,7 @@ module ActionDispatch forwarded_ips = ips_from('HTTP_X_FORWARDED_FOR') remote_addrs = ips_from('REMOTE_ADDR') - check_ip = client_ip && @middleware.check_ip + check_ip = client_ip && forwarded_ips.present? && @middleware.check_ip if check_ip && !forwarded_ips.include?(client_ip) # We don't know which came from the proxy, and which from the user raise IpSpoofAttackError, "IP spoofing attack?!" \ diff --git a/railties/test/application/middleware/remote_ip_test.rb b/railties/test/application/middleware/remote_ip_test.rb index da291f061c..126f4832c4 100644 --- a/railties/test/application/middleware/remote_ip_test.rb +++ b/railties/test/application/middleware/remote_ip_test.rb @@ -46,6 +46,16 @@ module ApplicationTests end end + test "works with both headers individually" do + make_basic_app + assert_nothing_raised(ActionDispatch::RemoteIp::IpSpoofAttackError) do + assert_equal "1.1.1.1", remote_ip("HTTP_X_FORWARDED_FOR" => "1.1.1.1") + end + assert_nothing_raised(ActionDispatch::RemoteIp::IpSpoofAttackError) do + assert_equal "1.1.1.2", remote_ip("HTTP_CLIENT_IP" => "1.1.1.2") + end + end + test "can disable IP spoofing check" do make_basic_app do |app| app.config.action_dispatch.ip_spoofing_check = false -- cgit v1.2.3