NULL pointer dereference in Ruby on Rails - CVE-2012-2694
Published: September 29, 2025
Vulnerability identifier: #VU116162
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-2694
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to actionpack/lib/action_dispatch/http/request.rb in Ruby on Rails does not properly consider differences in parameter handling between the Active Record component and the Rack interface. A remote attacker can bypass intended database-query restrictions and perform NULL checks via a crafted request.
Affected software
Ruby on Rails
How to mitigate CVE-2012-2694
Install updates from vendor's website.
Ruby on Rails - addressed in versions 3.0.14, 3.1.6, 3.2.6
External 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