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...
- Published
- Aug 29, 2011
- Updated
- Aug 6, 2024
- Assigning CNA
- redhat
- Evidence observed
- Feb 16, 2011
Primary CVSS
nvd · CVSS 2.0
AV:N/AC:M/Au:N/C:N/I:P/A:NLow · next 30 days
- Percentile
- 93.7%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Jimmy Bandit · multiple · Feb 16, 2011
Responsible use
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