Vulnerability Monitor

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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 might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.

Published

2011-08-29T18:55:01.707

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	rubyonrails	rails	3.0.5	Yes

References

http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html ([email protected])
http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.html Exploit ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/17/1 Patch ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/19/11 Patch ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/20/1 Patch ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/22/13 Patch ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/22/14 Exploit ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/22/5 Patch ([email protected])
https://bugzilla.novell.com/show_bug.cgi?id=673010 Exploit ([email protected])
http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html (af854a3a-2127-422b-91ae-364da2661108)
http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.html Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/17/1 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/19/11 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/20/1 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/22/13 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/22/14 Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/22/5 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.novell.com/show_bug.cgi?id=673010 Exploit (af854a3a-2127-422b-91ae-364da2661108)