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CVE-2016-6317

27
FAUCET Score

CVE-2016-6317 is a high-severity vulnerability affecting Ruby on Rails 4.2.x before 4.2.7.1, where a flaw in Action Record's parameter handling allows remote attackers to bypass database query restrictions. This can lead to NULL checks or missing WHERE clauses via crafted requests, similar to previous related vulnerabilities. With a CVSS score of 7.5, it has a low attack complexity and high impact on integrity, but no impact on confidentiality or availability. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.2.0:*:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.2.0:beta1:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.2.0:beta2:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.2.0:beta3:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.2.0:beta4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.90%
Probability of exploitation in next 30 days
EPSS Percentile
89.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0390 is in the 81st percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-ror42-rubygem-activerecord-1:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ror42-rubygem-actionpack-1:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ror42-rubygem-actionview-0:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ror42-rubygem-activerecord-1:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: rh-ror42-rubygem-actionpack-1:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: rh-ror42-rubygem-actionview-0:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: rh-ror42-rubygem-activerecord-1:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-ror42-rubygem-actionpack-1:4.2.6-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-ror42-rubygem-actionview-0:4.2.6-3.el7
View patch
rubygemspatch availablevia ghsa
Product: activerecordFixed in: 4.2.7.1

Vendor Advisories (2)

rubygemsGHSA-pr3r-4wrp-r2pvhigh

ActiveRecord in Ruby on Rails allows database-query bypass

Oct 24, 2017
redhatCVE-2016-6317Moderate

rubygem-activerecord: unsafe query generation in Active Record

Aug 11, 2016

References

rhn.redhat.com / errata/RHSA-2016-1855.html
groups.google.com / forum
weblog.rubyonrails.org / 2016/8/11/Rails-5-0-0-1-4-2-7-2-and-3-2-22-3-have-been-released
Release Notes
openwall.com / lists/oss-security/2016/08/11/4
Mailing ListThird Party Advisory
securityfocus.com / bid/92434