CVE-2012-3424

Description

The decode_credentials method in actionpack/lib/action_controller/metal/http_authentication.rb in Ruby on Rails 3.x before 3.0.16, 3.1.x before 3.1.7, and 3.2.x before 3.2.7 converts Digest Authentication strings to symbols, which allows remote attackers to cause a denial of service by leveraging access to an application that uses a with_http_digest helper method, as demonstrated by the authenticate_or_request_with_http_digest method.

CVSS Metrics

• v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.98%• Percentile: 77%

Techniques & Countermeasures

• CWE-287•Improper Authentication

  When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Systems

• rubyonrails•rails

  3.0.0 | 3.0.0:beta | 3.0.0:beta2 | 3.0.0:beta3 | 3.0.0:beta4 | 3.0.0:rc | 3.0.0:rc2 | 3.0.1 | 3.0.1:pre | 3.0.2 | 3.0.2:pre | 3.0.3 | 3.0.4:rc1 | 3.0.5 | 3.0.5:rc1 | 3.0.6 | 3.0.6:rc1 | 3.0.6:rc2 | 3.0.7 | 3.0.7:rc1 | 3.0.7:rc2 | 3.0.8 | 3.0.8:rc1 | 3.0.8:rc2 | 3.0.8:rc3 | 3.0.8:rc4 | 3.0.9 | 3.0.9:rc1 | 3.0.9:rc2 | 3.0.9:rc3 | 3.0.9:rc4 | 3.0.9:rc5 | 3.0.10 | 3.0.10:rc1 | 3.0.11 | 3.0.12 | 3.0.12:rc1 | 3.0.13 | 3.0.13:rc1 | 3.0.14 | 3.1.0 | 3.1.0:beta1 | 3.1.0:rc1 | 3.1.0:rc2 | 3.1.0:rc3 | 3.1.0:rc4 | 3.1.0:rc5 | 3.1.0:rc6 | 3.1.0:rc7 | 3.1.0:rc8 | 3.1.1 | 3.1.1:rc1 | 3.1.1:rc2 | 3.1.1:rc3 | 3.1.2 | 3.1.2:rc1 | 3.1.2:rc2 | 3.1.3 | 3.1.4 | 3.1.4:rc1 | 3.1.5 | 3.1.5:rc1 | 3.1.6 | 3.2.0 | 3.2.0:rc1 | 3.2.0:rc2 | 3.2.1 | 3.2.2 | 3.2.2:rc1 | 3.2.3 | 3.2.3:rc1 | 3.2.3:rc2 | 3.2.4 | 3.2.4:rc1 | 3.2.5 | 3.2.6

• rubyonrails•ruby_on_rails

  3.0.4

References (4)

• https://groups.google.com/group/rubyonrails-security/msg/244d32f2fa25147d?hl=en&dmode=source&output=gplain
• http://weblog.rubyonrails.org/2012/7/26/ann-rails-3-2-7-has-been-released/
• http://lists.opensuse.org/opensuse-updates/2012-08/msg00046.html
• http://rhn.redhat.com/errata/RHSA-2013-0154.html