CVE-2014-0087

First published: Thu Feb 20 2014(Updated: )

Jan Rusnacko of the Red Hat Product Security Team reports: CFME contains an authorization bypass issue in the action rbac_user_edit, which allows authenticated users with minimal privileges to gain access to additional privileges. The problem is in the method check_privileges in vmdb/app/controllers/application_controller.rb: def check_generic_rbac ident = "#{controller_name}_#{action_name}" if MiqProductFeature.feature_exists?(ident) passed = role_allows(:feature =&gt; ident, :any =&gt; true) unless passed if request.xml_http_request? render :update do |page| page.redirect_to :controller =&gt; 'dashboard', :action =&gt; 'auth_error' end else redirect_to(:controller =&gt; 'dashboard', :action =&gt; 'auth_error') end end passed else validate_route(controller_name, request.env['REQUEST_METHOD'], action_name) end end Since there is no else branch for the "if MiqProductFeature.feature_exists?(ident)", any feature that is missing from the list of known features, will be allowed by default. One of these such features is ops_rbac_user_edit. This is the same exact place in code that is causing <a href="https://access.redhat.com/security/cve/CVE-2014-0078">CVE-2014-0078</a>, however, the fix for this issue solves only <a href="https://access.redhat.com/security/cve/CVE-2014-0078">CVE-2014-0078</a>, not the problem itself. After the fix is applied, privileges for x_button are checked, but other actions like rbac_user_edit are allowed by default.

Credit: secalert@redhat.com

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