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.
{ "nvd_published_at": "2011-08-29T18:55:01Z", "cwe_ids": [ "CWE-20" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2020-06-16T20:56:30Z" }