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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 6.66% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 93.7% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-08-29 18:00Z15 YR AGO
- Last updated
- 2024-08-06 23:22Z2 YR AGO
- Reserved
- 2011-08-19
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- 83735e38efba3e56495877a20d8888bd9bf4ad7ea0748db89d495345384b8884
05 Affected products
06 References
- archives.neohapsis.com20110216 Ruby on Rails Vulnerabilityhttp://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html
- www.openwall.com[oss-security] 20110817 CVE request: ruby on rails flaws (4)http://www.openwall.com/lists/oss-security/2011/08/17/1
- www.openwall.com[oss-security] 20110822 Re: CVE request: ruby on rails flaws (4)http://www.openwall.com/lists/oss-security/2011/08/22/13
- webservsec.blogspot.comhttp://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.html
- www.openwall.com[oss-security] 20110819 Re: CVE request: ruby on rails flaws (4)http://www.openwall.com/lists/oss-security/2011/08/19/11
- www.openwall.com[oss-security] 20110820 Re: CVE request: ruby on rails flaws (4)http://www.openwall.com/lists/oss-security/2011/08/20/1
- www.openwall.com[oss-security] 20110822 Re: CVE request: ruby on rails flaws (4)http://www.openwall.com/lists/oss-security/2011/08/22/14
- bugzilla.novell.comhttps://bugzilla.novell.com/show_bug.cgi?id=673010
- www.openwall.com[oss-security] 20110822 Re: CVE request: ruby on rails flaws (4)http://www.openwall.com/lists/oss-security/2011/08/22/5
07 Fixed in
Debian 12
- rails No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- rails No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- rails No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.