[ GLSA 200912-02 ] Ruby on Rails: Multiple vulnerabilities

[Alex Legler <a3li () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200912-02
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Ruby on Rails: Multiple vulnerabilities
      Date: December 20, 2009
      Bugs: #200159, #237385, #247549, #276279, #283396, #294797
        ID: 200912-02

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Synopsis
========

Multiple vulnerabilities have been discovered in Rails, the worst of
which leading to the execution of arbitrary SQL statements.

Background
==========

Ruby on Rails is a web-application and persistence framework.

Affected packages
=================

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  dev-ruby/rails       < 2.2.2                             >= 2.3.5
                                                          *>= 2.2.3-r1

Description
===========

The following vulnerabilities were discovered:

* sameer reported that lib/action_controller/cgi_process.rb removes
  the :cookie_only attribute from the default session options
  (CVE-2007-6077), due to an incomplete fix for CVE-2007-5380 (GLSA
  200711-17).

* Tobias Schlottke reported that the :limit and :offset parameters of
  ActiveRecord::Base.find() are not properly sanitized before being
  processed (CVE-2008-4094).

* Steve from Coderrr reported that the CRSF protection in
  protect_from_forgery() does not parse the text/plain MIME format
  (CVE-2008-7248).

* Nate reported a documentation error that leads to the assumption
  that a block returning nil passed to
  authenticate_or_request_with_http_digest() would deny access to the
  requested resource (CVE-2009-2422).

* Brian Mastenbrook reported an input sanitation flaw, related to
  multibyte characters (CVE-2009-3009).

* Gabe da Silveira reported an input sanitation flaw in the
  strip_tags() function (CVE-2009-4214).

* Coda Hale reported an information disclosure vulnerability related
  to HMAC digests (CVE-2009-3086).

Impact
======

A remote attacker could send specially crafted requests to a vulnerable
application, possibly leading to the execution of arbitrary SQL
statements or a circumvention of access control. A remote attacker
could also conduct session fixation attacks to hijack a user's session
or bypass the CSRF protection mechanism, or furthermore conduct
Cross-Site Scripting attacks or forge a digest via multiple attempts.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Ruby on Rails 2.3.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-ruby/rails-2.3.5"

All Ruby on Rails 2.2.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose "=dev-ruby/rails-2.2.3-r1"

NOTE: All applications using Ruby on Rails should also be configured to
use the latest version available by running "rake rails:update" inside
the application directory.

References
==========

  [ 1 ] CVE-2007-5380
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5380
  [ 2 ] CVE-2007-6077
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6077
  [ 3 ] CVE-2008-4094
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4094
  [ 4 ] CVE-2008-7248
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-7248
  [ 5 ] CVE-2009-2422
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2422
  [ 6 ] CVE-2009-3009
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3009
  [ 7 ] CVE-2009-3086
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3086
  [ 8 ] CVE-2009-4214
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4214
  [ 9 ] GLSA 200711-17
        http://www.gentoo.org/security/en/glsa/glsa-200711-17.xml

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200912-02.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security () gentoo org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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