CVE-2011-3187

The to_s method in actionpack/lib/action_dispatch/middleware/remote_ip.rb in Ruby on Rails 3.0.5 does not validate the X-Forwarded-For header in requests from IP addresses on a Class C network, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.

Date published : 2011-08-29

https://bugzilla.novell.com/show_bug.cgi?id=673010

http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html