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…
Does this matter?
Lower severity and a low EPSS score (6.67%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
- EPSS
- 6.67% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- rubyonrails/rails
- Source
- secalert@redhat.com
References
- http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html
- http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.htmlExploit
- http://www.openwall.com/lists/oss-security/2011/08/17/1Patch
- http://www.openwall.com/lists/oss-security/2011/08/19/11Patch
- http://www.openwall.com/lists/oss-security/2011/08/20/1Patch
- http://www.openwall.com/lists/oss-security/2011/08/22/13Patch
- http://www.openwall.com/lists/oss-security/2011/08/22/14Exploit
- http://www.openwall.com/lists/oss-security/2011/08/22/5Patch
- https://bugzilla.novell.com/show_bug.cgi?id=673010Exploit
- http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html
- http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.htmlExploit
- http://www.openwall.com/lists/oss-security/2011/08/17/1Patch
- http://www.openwall.com/lists/oss-security/2011/08/19/11Patch
- http://www.openwall.com/lists/oss-security/2011/08/20/1Patch
- http://www.openwall.com/lists/oss-security/2011/08/22/13Patch
- http://www.openwall.com/lists/oss-security/2011/08/22/14Exploit
- http://www.openwall.com/lists/oss-security/2011/08/22/5Patch
- https://bugzilla.novell.com/show_bug.cgi?id=673010Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.