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Last updated: 4/16/2014

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Vulnerability Summary for CVE-2011-3187

Original release date: 08/29/2011
Last revised: 07/06/2012
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/AU:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification

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External Source: MLIST
Name: [oss-security] 20110822 Re: CVE request: ruby on rails flaws (4)
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20110820 Re: CVE request: ruby on rails flaws (4)
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20110822 Re: CVE request: ruby on rails flaws (4)
External Source: FULLDISC
Name: 20110216 Ruby on Rails Vulnerability
External Source: MLIST
Name: [oss-security] 20110817 CVE request: ruby on rails flaws (4)
Type: Patch Information
External Source: MISC
Name: http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.html
External Source: CONFIRM
Name: https://bugzilla.novell.com/show_bug.cgi?id=673010
External Source: MLIST
Name: [oss-security] 20110819 Re: CVE request: ruby on rails flaws (4)
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20110822 Re: CVE request: ruby on rails flaws (4)
Type: Patch Information

Technical Details

Vulnerability Type (View All)