CVE-2016-6317

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-09-07 · updated 2026-06-17
Weakness: CWE-284

Description

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.

Affected products

Ruby on Rails: 4.2.0, 4.2.0-beta1, 4.2.0-beta2, 4.2.0-beta3, 4.2.0-beta4, 4.2.0-rc1 (+21)

References

http://rhn.redhat.com/errata/RHSA-2016-1855.html
http://weblog.rubyonrails.org/2016/8/11/Rails-5-0-0-1-4-2-7-2-and-3-2-22-3-have-been-released/
http://www.openwall.com/lists/oss-security/2016/08/11/4
http://www.securityfocus.com/bid/92434
https://groups.google.com/forum/#%21topic/ruby-security-ann/WccgKSKiPZA
http://rhn.redhat.com/errata/RHSA-2016-1855.html
http://weblog.rubyonrails.org/2016/8/11/Rails-5-0-0-1-4-2-7-2-and-3-2-22-3-have-been-released/
http://www.openwall.com/lists/oss-security/2016/08/11/4
http://www.securityfocus.com/bid/92434
https://groups.google.com/forum/#%21topic/ruby-security-ann/WccgKSKiPZA

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