CVE-2012-2694

Severity: medium (CVSS 4.3 v2.0)
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: yes
Published: 2012-06-22 · updated 2026-06-16
Weakness: CWE-264

Description

actionpack/lib/action_dispatch/http/request.rb in Ruby on Rails before 3.0.14, 3.1.x before 3.1.6, and 3.2.x before 3.2.6 does not properly consider differences in parameter handling between the Active Record component and the Rack interface, which allows remote attackers to bypass intended database-query restrictions and perform NULL checks via a crafted request, as demonstrated by certain "['xyz', nil]" values, a related issue to CVE-2012-2660.

Affected products

Ruby on Rails: 3.0.0, 3.0.0-beta, 3.0.0-beta2, 3.0.0-beta3, 3.0.0-beta4, 3.0.0-rc (+66)
rubyonrails Ruby On Rails: through 3.0.13; 3.0.4

References

http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00017.html
http://lists.opensuse.org/opensuse-updates/2012-08/msg00046.html
http://rhn.redhat.com/errata/RHSA-2013-0154.html
https://groups.google.com/group/rubyonrails-security/msg/e2d3a87f2c211def?dmode=source&output=gplain
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00017.html
http://lists.opensuse.org/opensuse-updates/2012-08/msg00046.html

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