Vulnerabilities > CVE-2006-4111 - Code Injection vulnerability in Rubyonrails Rails and Ruby ON Rails

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
rubyonrails
CWE-94
nessus

Summary

Ruby on Rails before 1.1.5 allows remote attackers to execute Ruby code with "severe" or "serious" impact via a File Upload request with an HTTP header that modifies the LOAD_PATH variable, a different vulnerability than CVE-2006-4112. This vulnerability is fully addressed in the following product release: Ruby on Rails, Ruby on Rails, 1.1.6

Vulnerable Configurations

Part Description Count
Application
Rubyonrails
55

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Manipulating User-Controlled Variables
    This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.

Nessus

NASL familyGentoo Local Security Checks
NASL idGENTOO_GLSA-200608-20.NASL
descriptionThe remote host is affected by the vulnerability described in GLSA-200608-20 (Ruby on Rails: Several vulnerabilities) The Ruby on Rails developers have corrected some weaknesses in action_controller/, relative to the handling of the user input and the LOAD_PATH variable. A remote attacker could inject arbitrary entries into the LOAD_PATH variable and alter the main Ruby on Rails process. The security hole has only been partly solved in version 1.1.5. Version 1.1.6 now fully corrects it. Impact : A remote attacker that would exploit these weaknesses might cause a Denial of Service of the web framework and maybe inject arbitrary Ruby scripts. Workaround : There is no known workaround at this time.
last seen2020-06-01
modified2020-06-02
plugin id22242
published2006-08-21
reporterThis script is Copyright (C) 2006-2019 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/22242
titleGLSA-200608-20 : Ruby on Rails: Several vulnerabilities
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200608-20.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(22242);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:43");

  script_cve_id("CVE-2006-4111", "CVE-2006-4112");
  script_xref(name:"GLSA", value:"200608-20");

  script_name(english:"GLSA-200608-20 : Ruby on Rails: Several vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200608-20
(Ruby on Rails: Several vulnerabilities)

    The Ruby on Rails developers have corrected some weaknesses in
    action_controller/, relative to the handling of the user input and the
    LOAD_PATH variable. A remote attacker could inject arbitrary entries
    into the LOAD_PATH variable and alter the main Ruby on Rails process.
    The security hole has only been partly solved in version 1.1.5. Version
    1.1.6 now fully corrects it.
  
Impact :

    A remote attacker that would exploit these weaknesses might cause a
    Denial of Service of the web framework and maybe inject arbitrary Ruby
    scripts.
  
Workaround :

    There is no known workaround at this time."
  );
  # http://weblog.rubyonrails.org/2006/8/9/rails-1-1-5-mandatory-security-patch-and-other-tidbits
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8fe7cbd6"
  );
  # http://weblog.rubyonrails.org/2006/8/10/rails-1-1-6-backports-and-full-disclosure
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?7eb1d7c6"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200608-20"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Ruby on Rails users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=dev-ruby/rails-1.1.6'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:rails");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/08/21");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/09");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"dev-ruby/rails", unaffected:make_list("ge 1.1.6"), vulnerable:make_list("lt 1.1.6"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Ruby on Rails");
}