Descriptionactionpack/lib/action_dispatch/http/request.rb in Ruby on Rails before 3.2.16 and 4.x before 4.0.2 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 that leverages (1) third-party Rack middleware or (2) custom Rack middleware. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-0155.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs731288, 731290

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rails (PTS)wheezy2:
jessie (security), jessie2:4.1.8-1+deb8u4fixed
stretch, sid2:
ruby-actionpack-2.3 (PTS)wheezy2.3.14-5fixed
ruby-actionpack-3.2 (PTS)wheezy3.2.6-6+deb7u2fixed
wheezy (security)3.2.6-6+deb7u3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
railssource(unstable)(not affected)
ruby-actionpack-2.3source(unstable)(not affected)


- ruby-actionpack-2.3 <not-affected> (vulnerable code not present)
- rails <not-affected> (vulnerable code not present)
Starting with rails is a transition package
CVE for incomplete fix for CVE-2013-0155

Search for package or bug name: Reporting problems