CVE-2011-3187

Ruby on Rails 3.0.5 - 'WEBrick::HTTPRequest' Module HTTP Header Injection

Severity Score

4.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

El método to_s en actionpack/lib/action_dispatch/middleware/remote_ip.rb en Ruby on Rails v3.0.5 no valida la cabecera X-Forwarded-For de las peticiones de direcciones IP en una red de Clase C, lo que podría permitir a atacantes remotos la ejecución de documentos de texto en los archivos de registro o evitar análisis de direcciones intencionadas a través de una cabecera modificada.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-02-16 First Exploit
2011-08-19 CVE Reserved
2011-08-29 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (10)

URL	Tag	Source
http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html	Mailing List

URL	Date	SRC
https://www.exploit-db.com/exploits/35352	2011-02-16
http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.html	2024-08-06
http://www.openwall.com/lists/oss-security/2011/08/22/14	2024-08-06
https://bugzilla.novell.com/show_bug.cgi?id=673010	2024-08-06

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2011/08/17/1	2019-08-08
http://www.openwall.com/lists/oss-security/2011/08/19/11	2019-08-08
http://www.openwall.com/lists/oss-security/2011/08/20/1	2019-08-08
http://www.openwall.com/lists/oss-security/2011/08/22/13	2019-08-08
http://www.openwall.com/lists/oss-security/2011/08/22/5	2019-08-08

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rubyonrails Search vendor "Rubyonrails"		Rails Search vendor "Rubyonrails" for product "Rails"				3.0.5 Search vendor "Rubyonrails" for product "Rails" and version "3.0.5"		-		Affected