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Ruby On Rails CVE-2013-6414

MEDIUM
Improper Input Validation (CWE-20)
2013-12-07 secalert@redhat.com
Denial Of Service Rails Ruby On Rails Rubyonrails
5.0
CVSS 2.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
CWE-20
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 5.0 (MEDIUM). Attack characteristics: network attack vector, low complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 70.84%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 70.8% exploitation probability (EPSS)

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AnalysisAI

actionpack/lib/action_view/lookup_context.rb in Action View in Ruby on Rails 3.x before 3.2.16 and 4.x before 4.0.2 allows remote attackers to cause a denial of service (memory consumption) via a. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 70.8%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

rubygems actionpack fix: 3.2.16, 4.0.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in rubygems

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Technical ContextAI · show details

This vulnerability is classified under CWE-20. actionpack/lib/action_view/lookup_context.rb in Action View in Ruby on Rails 3.x before 3.2.16 and 4.x before 4.0.2 allows remote attackers to cause a denial of service (memory consumption) via a header containing an invalid MIME type that leads to excessive caching. Affected products include: Rubyonrails Rails, Rubyonrails Ruby On Rails. Version information: before 3.2.16.

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Severity by source

NVD PRIMARY 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
None
Availability
P

DescriptionCVE.org

actionpack/lib/action_view/lookup_context.rb in Action View in Ruby on Rails 3.x before 3.2.16 and 4.x before 4.0.2 allows remote attackers to cause a denial of service (memory consumption) via a header containing an invalid MIME type that leads to excessive caching.

Threat Intelligence Overview

Threat Score
4.6/10
Composite threat intelligence
EPSS Score
70.8%
Top 1% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS POC (1)

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 70.8%
Patch available Yes
Active threat Yes
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

116
Low Medium High Critical
KEV: 0
EPSS: +71
CVSS: +25
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:rubyonrails:rails:*:-:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:4.0.0:-:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:4.0.0:beta:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:4.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:4.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:4.0.1:rc1:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.0:beta:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.0:rc:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.1:pre:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.2:pre:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.4:rc1:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:3.0.5:*:*:*:*:*:*:*
+ 88 more

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References

Advisories & patches
PATCH http://weblog.rubyonrails.org/2013/12/3/Rails_3_2_16_and_4_0_2_have_been_released/ REF http://lists.opensuse.org/opensuse-updates/2013-12/msg00079.html REF http://lists.opensuse.org/opensuse-updates/2013-12/msg00081.html REF http://lists.opensuse.org/opensuse-updates/2013-12/msg00082.html REF http://lists.opensuse.org/opensuse-updates/2014-01/msg00003.html REF http://rhn.redhat.com/errata/RHSA-2013-1794.html REF http://rhn.redhat.com/errata/RHSA-2014-0008.html REF http://rhn.redhat.com/errata/RHSA-2014-1863.html REF http://secunia.com/advisories/57836 REF http://www.debian.org/security/2014/dsa-2888 REF http://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/ REF https://groups.google.com/forum/message/raw?msg=ruby-security-ann/A-ebV4WxzKg/KNPTbX8XAQUJ REF https://puppet.com/security/cve/cve-2013-6414

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