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Fencer Intel
medium 4.3

CVE-2012-2694 json

actionpack allows remote attackers to bypass database-query restrictions, perform NULL checks via crafted request

published 2012-06-22 14 y ago modified 2026-06-16 4 mo ago also GHSA-q34c-48gc-m9g8 , EUVD-2017-0284

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

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.

Patch / fix

  • rubygems actionpack 3.0.14, 3.1.6, 3.2.6
  • php openshift 1 5.3.3-22.el6
  • graphviz openshift 1 2.26.0-10.el6
  • php-imap openshift 1 5.3.3-22.el6
  • php-bcmath openshift 1 5.3.3-22.el6
  • graphviz-gd openshift 1 2.26.0-10.el6
  • php-process openshift 1 5.3.3-22.el6
  • php-mbstring openshift 1 5.3.3-22.el6
  • ruby193-ruby openshift 1 1.9.3.327-25.el6

red hat advisories RHSA-2013:0582

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-2694 updated cvss 4.0

rubygem-actionpack: Unsafe query generation (a different flaw than CVE-2012-2660)

  • Red Hat CloudForms Cloud Engine for RHEL 6 Server puppet 2.6.17-2.el6cf, rubygem-mail 2.3.0-3.el6cf, puppet-server 2.6.17-2.el6cf, rubygem-compass 0.11.5-2.el6cf, rubygem-net-ldap 0.1.1-3.el6cf, rubygem-chunky_png 1.2.0-3.el6cf, +6 more Red Hat CloudForms System Engine for RHEL 6 Server puppet 2.6.17-2.el6cf, rubygem-mail 2.3.0-3.el6cf, puppet-server 2.6.17-2.el6cf, rubygem-compass 0.11.5-2.el6cf, rubygem-net-ldap 0.1.1-3.el6cf, rubygem-chunky_png 1.2.0-3.el6cf, +6 more
    fixed: vendor fix RHSA-2012:1542
  • Red Hat OpenShift Enterprise Infrastructure graphviz 2.26.0-10.el6, graphviz-gd 2.26.0-10.el6, rubygem-bson 1.8.1-2.el6op, graphviz-ruby 2.26.0-10.el6, rubygem-mongo 1.8.1-2.el6op, ruby193-ruby 1.9.3.327-25.el6, +25 more Red Hat OpenShift Enterprise JBoss EAP add-on openshift-origin-cartridge-jbosseap-6.0 1.0.4-1.el6op Red Hat OpenShift Enterprise Node php 5.3.3-22.el6, php-imap 5.3.3-22.el6, php-bcmath 5.3.3-22.el6, php-process 5.3.3-22.el6, php-mbstring 5.3.3-22.el6, rubygem-bson 1.8.1-2.el6op, +32 more
    fixed: vendor fix RHSA-2013:0582
  • Red Hat Subscription Asset Manager for RHEL 6 Server rubygem-actionpack 3.0.10-11.el6cf, rubygem-activerecord 3.0.10-8.el6cf, rubygem-activesupport 3.0.10-5.el6cf
    fixed: vendor fix RHSA-2013:0154

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.89% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • groups.google.com https://groups.google.com/group/rubyonrails-security/msg/e2d3a87f2c211def?dmode=source&output=gplain referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected packages

ecosystem package affected fixed in
rubygems actionpack
>=3.0.13, <3.0.14
>=3.1.0, <3.1.6
>=3.2.0, <3.2.6
3.0.14
3.1.6
3.2.6

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.