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

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