CVE-2011-3186

Home/CVE/CRLF injection vulnerability in actionpack/lib/action_controller/response.rb in Ruby on Rails 2.3.x before 2.3.13 allows

CVE

CRLF injection vulnerability in actionpack/lib/action_controller/response.rb in Ruby on Rails 2.3.x before 2.3.13 allows

CRLF injection vulnerability in actionpack/lib/action_controller/response.rb in Ruby on Rails 2.3.x before 2.3.13 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the Content-Type header.

MEDIUM · CVSS 4.3 EPSS 0.00814

Monitor

No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules1 YARA rules0

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Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')

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Affected Products & Versions

rubyonrails railsall versions

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Affected Packages

Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.

RubyGems actionpack MODERATE fixed in 2.3.13

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

productmediumRuby on Rails Framework Exceptions

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Scoring & Timeline

4.3

MEDIUM · CVSS v2 (legacy) · secalert@redhat.com

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

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

Published to NVD29 Aug 2011 · 06:55 PM

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://groups.google.com/group/rubyonrails-security/msg/bbe342e43abaa78c?dmode=source&output=gplainPatch

http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065137.html

http://secunia.com/advisories/45921

http://www.debian.org/security/2011/dsa-2301

http://www.openwall.com/lists/oss-security/2011/08/17/1Patch

http://www.openwall.com/lists/oss-security/2011/08/19/11Patch

Show all 12 references

http://www.openwall.com/lists/oss-security/2011/08/20/1Patch

http://www.openwall.com/lists/oss-security/2011/08/22/13Patch

http://www.openwall.com/lists/oss-security/2011/08/22/14

http://www.openwall.com/lists/oss-security/2011/08/22/5Patch

https://bugzilla.redhat.com/show_bug.cgi?id=732156Patch

https://github.com/rails/rails/commit/11dafeaa7533be26441a63618be93a03869c83a9Patch

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