medium
5
CWE
287
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2012-3424

First published: Fri Jul 27 2012(Updated: )

tenderlove reports: DoS Vulnerability in authenticate_or_request_with_http_digest There is a DoS vulnerability in Action Pack digest authentication handling in Rails. This vulnerability has been assigned the CVE identifier <a href="https://access.redhat.com/security/cve/CVE-2012-3424">CVE-2012-3424</a>. Versions Affected: 3.x. Not affected: 2.3.5 - 2.3.14 Fixed Versions: 3.0.16, 3.1.7, 3.2.7 Impact ------ All users using Digest Authentication support in Rails should upgrade immediately. Impacted code uses any of the `with_http_digest` controller helper methods. For example: class MyController &lt; ApplicationController def index authenticate_or_request_with_http_digest(REALM) do |uname| # ... end end end Releases -------- The 3.0.16, 3.1.7 &amp; 3.2.7 releases are available at the normal locations. Workarounds ----------- There are no feasible workarounds for this issue. Patches ------- To aid users who aren't able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset. * 3-0-digest_auth_dos.patch - Patch for 3.0 series * 3-1-digest_auth_dos.patch - Patch for 3.1 series * 3-2-digest_auth_dos.patch - Patch for 3.2 series Please note that only the 3.1.x and 3.2.x series are supported at present. Users of earlier unsupported releases are advised to upgrade as soon as possible as we cannot guarantee the continued availability of security fixes for unsupported releases. Credits ------- Thanks to Charlie Somerville for reporting this issue! References: <a href="http://weblog.rubyonrails.org/2012/7/26/ann-rails-3-2-7-has-been-released/">http://weblog.rubyonrails.org/2012/7/26/ann-rails-3-2-7-has-been-released/</a> <a href="https://groups.google.com/forum/?fromgroups#!topic/rubyonrails-security/vxJjrc15qYM">https://groups.google.com/forum/?fromgroups#!topic/rubyonrails-security/vxJjrc15qYM</a> diff --git a/actionpack/lib/action_controller/metal/http_authentication.rb b/actionpack/lib/action_controller/metal/http_authentication.rb index 9f2f547..fe4ab65 100644 --- a/actionpack/lib/action_controller/metal/http_authentication.rb +++ b/actionpack/lib/action_controller/metal/http_authentication.rb @@ -227,9 +227,9 @@ module ActionController end def decode_credentials(header) - Hash[header.to_s.gsub(/^Digest\s+/,'').split(',').map do |pair| + HashWithIndifferentAccess[header.to_s.gsub(/^Digest\s+/,'').split(',').map do |pair| key, value = pair.split('=', 2) - [key.strip.to_sym, value.to_s.gsub(/^"|"$/,'').gsub(/'/, '')] + [key.strip, value.to_s.gsub(/^"|"$/,'').delete('\'')] end] end

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/rubygem-actionpack<3.0.16
3.0.16
redhat/rubygem-actionpack<3.1.7
3.1.7
redhat/rubygem-actionpack<3.2.7
3.2.7
rubygems/actionpack<2.3.5
2.3.5
rubygems/actionpack>=3.0.0.beta<3.0.16
3.0.16
rubygems/actionpack>=3.2.0<3.2.7
3.2.7
rubygems/actionpack>=3.1.0<3.1.7
3.1.7
Ruby on Rails=3.0.0
Ruby on Rails=3.0.0-beta
Ruby on Rails=3.0.0-beta2
Ruby on Rails=3.0.0-beta3
Ruby on Rails=3.0.0-beta4
Ruby on Rails=3.0.0-rc
Ruby on Rails=3.0.0-rc2
Ruby on Rails=3.0.1
Ruby on Rails=3.0.1-pre
Ruby on Rails=3.0.2
Ruby on Rails=3.0.2-pre
Ruby on Rails=3.0.3
Ruby on Rails=3.0.4-rc1
Ruby on Rails=3.0.5
Ruby on Rails=3.0.5-rc1
Ruby on Rails=3.0.6
Ruby on Rails=3.0.6-rc1
Ruby on Rails=3.0.6-rc2
Ruby on Rails=3.0.7
Ruby on Rails=3.0.7-rc1
Ruby on Rails=3.0.7-rc2
Ruby on Rails=3.0.8
Ruby on Rails=3.0.8-rc1
Ruby on Rails=3.0.8-rc2
Ruby on Rails=3.0.8-rc3
Ruby on Rails=3.0.8-rc4
Ruby on Rails=3.0.9
Ruby on Rails=3.0.9-rc1
Ruby on Rails=3.0.9-rc2
Ruby on Rails=3.0.9-rc3
Ruby on Rails=3.0.9-rc4
Ruby on Rails=3.0.9-rc5
Ruby on Rails=3.0.10
Ruby on Rails=3.0.10-rc1
Ruby on Rails=3.0.11
Ruby on Rails=3.0.12
Ruby on Rails=3.0.12-rc1
Ruby on Rails=3.0.13
Ruby on Rails=3.0.13-rc1
Ruby on Rails=3.0.14
Ruby on Rails=3.0.4
Ruby on Rails=3.1.0
Ruby on Rails=3.1.0-beta1
Ruby on Rails=3.1.0-rc1
Ruby on Rails=3.1.0-rc2
Ruby on Rails=3.1.0-rc3
Ruby on Rails=3.1.0-rc4
Ruby on Rails=3.1.0-rc5
Ruby on Rails=3.1.0-rc6
Ruby on Rails=3.1.0-rc7
Ruby on Rails=3.1.0-rc8
Ruby on Rails=3.1.1
Ruby on Rails=3.1.1-rc1
Ruby on Rails=3.1.1-rc2
Ruby on Rails=3.1.1-rc3
Ruby on Rails=3.1.2
Ruby on Rails=3.1.2-rc1
Ruby on Rails=3.1.2-rc2
Ruby on Rails=3.1.3
Ruby on Rails=3.1.4
Ruby on Rails=3.1.4-rc1
Ruby on Rails=3.1.5
Ruby on Rails=3.1.5-rc1
Ruby on Rails=3.1.6
Ruby on Rails=3.2.0
Ruby on Rails=3.2.0-rc1
Ruby on Rails=3.2.0-rc2
Ruby on Rails=3.2.1
Ruby on Rails=3.2.2
Ruby on Rails=3.2.2-rc1
Ruby on Rails=3.2.3
Ruby on Rails=3.2.3-rc1
Ruby on Rails=3.2.3-rc2
Ruby on Rails=3.2.4
Ruby on Rails=3.2.4-rc1
Ruby on Rails=3.2.5
Ruby on Rails=3.2.6

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-3424?

    CVE-2012-3424 is classified as a Denial of Service (DoS) vulnerability affecting Ruby on Rails.

  • How do I fix CVE-2012-3424?

    To remediate CVE-2012-3424, upgrade to rubygem-actionpack version 3.0.16, 3.1.7, or 3.2.7, or any higher version.

  • Which versions of Ruby on Rails are affected by CVE-2012-3424?

    CVE-2012-3424 affects Ruby on Rails versions prior to 3.0.16, 3.1.7, and 3.2.7.

  • Is CVE-2012-3424 related to authentication processes in Rails?

    Yes, CVE-2012-3424 specifically impacts the digest authentication handling in Action Pack.

  • What area of the Ruby on Rails application does CVE-2012-3424 target?

    CVE-2012-3424 targets the authentication process within Ruby on Rails applications, leading to potential service disruption.

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