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NVD / CVE Program· CNA redhat

CVE-2016-6317: Action Record in Ruby on Rails 4.2.x before 4.2.7.1 does not properly consider differences in parameter handling between the Active Record…

HighCVSS 7.5 · v3.0—Proof of concept Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.9% (FIRST EPSS); higher than 90.4% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: rails (Debian:12) 2:4.2.7.1-1; rh-ror42-rubygem-actionpack (Red Hat:rhel_software_collections:2::el7) 1:4.2.6-3.el7; rh-ror42-rubygem-actionpack-doc (Red Hat:rhel_software_collections:2::el7) 1:4.2.6-3.el7.

Low priority for now. Upgrade to rails (Debian:12) 2:4.2.7.1-1; rh-ror42-rubygem-actionpack (Red Hat:rhel_software_collections:2::el7) 1:4.2.6-3.el7; rh-ror42-rubygem-actionpack-doc (Red Hat:rhel_software_collections:2::el7) 1:4.2.6-3.el7 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Action Record in Ruby on Rails 4.2.x before 4.2.7.1 does not properly consider differences in parameter handling between the Active Record component and the JSON implementation, which allows remote attackers to bypass intended database-query restrictions and perform NULL checks or trigger missing WHERE clauses via a crafted request, as demonstrated by certain "[nil]" values, a related issue to CVE-2012-2660, CVE-2012-2694, and CVE-2013-0155.

Published
Sep 7, 2016
Updated
Jun 16, 2026
EPSS
3.9% · 90th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.9%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
rubyonrailsrails

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • rubyonrails rails4.2.0
  • rubyonrails rails4.2.1
  • rubyonrails rails4.2.2
  • rubyonrails rails4.2.3
  • rubyonrails rails4.2.4
  • rubyonrails rails4.2.5
  • rubyonrails rails4.2.5.1
  • rubyonrails rails4.2.5.2
  • rubyonrails rails4.2.6
  • rubyonrails rails4.2.7

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12railsbefore 2:4.2.7.1-12:4.2.7.1-1
Red Hat:rhel_software_collections:2::el7rh-ror42-rubygem-actionpackbefore 1:4.2.6-3.el71:4.2.6-3.el7
Red Hat:rhel_software_collections:2::el7rh-ror42-rubygem-actionpack-docbefore 1:4.2.6-3.el71:4.2.6-3.el7
Red Hat:rhel_software_collections:2::el7rh-ror42-rubygem-actionviewbefore 0:4.2.6-3.el70:4.2.6-3.el7
Red Hat:rhel_software_collections:2::el7rh-ror42-rubygem-actionview-docbefore 0:4.2.6-3.el70:4.2.6-3.el7
Red Hat:rhel_software_collections:2::el7rh-ror42-rubygem-activerecordbefore 1:4.2.6-3.el71:4.2.6-3.el7
Red Hat:rhel_software_collections:2::el7rh-ror42-rubygem-activerecord-docbefore 1:4.2.6-3.el71:4.2.6-3.el7
RubyGemsactiverecordfrom 4.2.0 · before 4.2.7.14.2.7.1
SUSE:OpenStack Cloud 6rubygem-actionmailer-4_2before 4.2.9-3.3.14.2.9-3.3.1
SUSE:OpenStack Cloud 6rubygem-actionpack-4_2before 4.2.9-7.3.14.2.9-7.3.1
SUSE:OpenStack Cloud 6rubygem-actionview-4_2before 4.2.9-9.3.14.2.9-9.3.1
SUSE:OpenStack Cloud 6rubygem-activejob-4_2before 4.2.9-3.3.14.2.9-3.3.1
SUSE:OpenStack Cloud 6rubygem-activemodel-4_2before 4.2.9-6.3.14.2.9-6.3.1
SUSE:OpenStack Cloud 6rubygem-activerecord-4_2before 4.2.9-6.3.14.2.9-6.3.1
SUSE:OpenStack Cloud 6rubygem-activesupport-4_2before 4.2.9-7.3.14.2.9-7.3.1
SUSE:OpenStack Cloud 6rubygem-rails-4_2before 4.2.9-3.3.14.2.9-3.3.1
SUSE:OpenStack Cloud 6rubygem-rails-html-sanitizerbefore 1.0.3-8.3.11.0.3-8.3.1
SUSE:OpenStack Cloud 6rubygem-railties-4_2before 4.2.9-3.3.14.2.9-3.3.1

Same product

rubyonrails: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-5418There is a File Content Disclosure vulnerability in Action View <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 and v3 where specially crafted…KEV
    90Now
  • CVE-2016-0752Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1…KEV
    89Now
  • CVE-2019-5420A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically…
    66This week

Published before and after this one in the same product

  • ← EarlierCVE-2016-2097Apr 7, 2016 · Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.2 and 4.x before 4.1.14.2 allows remote attackers to read…
    22Monitor
  • ← EarlierCVE-2016-6316Sep 7, 2016 · Cross-site scripting (XSS) vulnerability in Action View in Ruby on Rails 3.x before 3.2.22.3, 4.x before 4.2.7.1, and 5.x before 5.0.0.1…
    25Monitor
  • Later →CVE-2017-17916Dec 29, 2017 · SQL injection vulnerability in the 'find_by' method in Ruby on Rails 5.1.4 and earlier allows remote attackers to execute arbitrary SQL…
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:rails2:4.2.7.1-1 · Debian:12Package registry (OSV)
red hat:rh-ror42-rubygem-actionpack1:4.2.6-3.el7 · Red Hat:rhel_software_collections:2::el7Package registry (OSV)
red hat:rh-ror42-rubygem-actionpack-doc1:4.2.6-3.el7 · Red Hat:rhel_software_collections:2::el7Package registry (OSV)
red hat:rh-ror42-rubygem-actionview0:4.2.6-3.el7 · Red Hat:rhel_software_collections:2::el7Package registry (OSV)
red hat:rh-ror42-rubygem-actionview-doc0:4.2.6-3.el7 · Red Hat:rhel_software_collections:2::el7Package registry (OSV)
red hat:rh-ror42-rubygem-activerecord1:4.2.6-3.el7 · Red Hat:rhel_software_collections:2::el7Package registry (OSV)
red hat:rh-ror42-rubygem-activerecord-doc1:4.2.6-3.el7 · Red Hat:rhel_software_collections:2::el7Package registry (OSV)
RubyGems:activerecord4.2.7.1Package registry (OSV)
suse:rubygem-actionmailer-4_24.2.9-3.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-actionpack-4_24.2.9-7.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-actionview-4_24.2.9-9.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-activejob-4_24.2.9-3.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-activemodel-4_24.2.9-6.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-activerecord-4_24.2.9-6.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-activesupport-4_24.2.9-7.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-rails-4_24.2.9-3.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-rails-html-sanitizer1.0.3-8.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)
suse:rubygem-railties-4_24.2.9-3.3.1 · SUSE:OpenStack Cloud 6Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02017-09-26

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+383 d
  3. TodayNov 15, 2026+3721 d

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-284 · Improper Access Control

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records