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MEDIUM · 4.3

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 ...

Vulnerability 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 Score

4.3

MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N
Confidentiality
NONE
Integrity
PARTIAL
Availability
NONE

Affected Products

VendorProductVersions
RubyonrailsRails3.0.5

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2011-3187?

CVE-2011-3187 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 ...

How severe is CVE-2011-3187?

CVE-2011-3187 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2011-3187?

Check the references section above for vendor advisories and patch information. Affected products include: Rubyonrails Rails.