Vulnerabilities > CVE-2014-3120 - Improper Access Control vulnerability in Elasticsearch 1.1.1

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2014:1186. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(77661);
  script_version("1.16");
  script_cvs_date("Date: 2019/10/24 15:35:38");

  script_cve_id("CVE-2014-3120");
  script_bugtraq_id(67731);
  script_xref(name:"RHSA", value:"2014:1186");

  script_name(english:"RHEL 6 : katello-configure (RHSA-2014:1186)");
  script_summary(english:"Checks the rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated katello-configure package that fixes one security issue is
now available for Red Hat Subscription Asset Manager.

Red Hat Product Security has rated this update as having Important
security impact. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available from the
CVE link in the References section.

The katello-configure package provides the katello-configure script,
which configures the Katello installation, and the katello-upgrade
script, which handles upgrades between versions.

It was discovered that the default configuration of Elasticsearch
enabled dynamic scripting, allowing a remote attacker to execute
arbitrary MVEL expressions and Java code via the source parameter
passed to _search. (CVE-2014-3120)

All Subscription Asset Manager users are advised to upgrade to this
updated package. The update provides a script that modifies the
elasticsearch.yml configuration file to disable dynamic scripting.
After updating, run the 'katello-configure' command. This will update
the elasticsearch.yml configuration file and restart the elasticsearch
service."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2014:1186"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2014-3120"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected katello-configure package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'ElasticSearch Dynamic Script Arbitrary Java Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:katello-configure");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/07/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/09/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/09/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2014:1186";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL6", reference:"katello-configure-1.4.5.1-3.el6sam")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "katello-configure");
  }
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2019 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(84411);
  script_version("2.6");
  script_cvs_date("Date: 2019/07/10 16:04:13");

  script_cve_id("CVE-2014-3120");
  script_bugtraq_id(67731);
  script_xref(name:"EDB-ID", value:"33370");

  script_name(english:"FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Elastic reports :

Vulnerability Summary: In Elasticsearch versions 1.1.x and prior,
dynamic scripting is enabled by default. This could allow an attacker
to execute OS commands.

Remediation Summary: Disable dynamic scripting.

Logstash 1.4.2 was bundled with Elasticsearch 1.1.1, which is
vulnerable to CVE-2014-3120. These binaries are used in Elasticsearch
output specifically when using the node protocol. Since a node client
joins the Elasticsearch cluster, the attackers could use scripts to
execute commands on the host OS using the node client's URL endpoint.
With 1.4.3 release, we are packaging Logstash with Elasticsearch 1.5.2
binaries which by default disables the ability to run scripts. This
also affects users who are using the configuration option
embedded=>true in the Elasticsearch output which starts a local
embedded Elasticsearch cluster. This is typically used in development
environment and proof of concept deployments. Regardless of this
vulnerability, we strongly recommend not using embedded in production.

Note that users of transport and http protocol are not vulnerable to
this attack."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.elastic.co/community/security"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.elastic.co/blog/elasticsearch-1-2-0-released"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.elastic.co/blog/logstash-1-4-3-released"
  );
  # http://bouk.co/blog/elasticsearch-rce/
  script_set_attribute(
    attribute:"see_also",
    value:"https://bouk.co/blog/elasticsearch-rce/"
  );
  # http://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rce
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?27fc4ce3"
  );
  # https://www.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearch
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6702767b"
  );
  # https://vuxml.freebsd.org/freebsd/43ac9d42-1b9a-11e5-b43d-002590263bf5.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?a8f9d692"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'ElasticSearch Dynamic Script Arbitrary Java Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:elasticsearch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:logstash");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/06/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/06/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"elasticsearch<1.2.0")) flag++;
if (pkg_test(save_report:TRUE, pkg:"logstash<1.4.3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(76572);
  script_version("1.9");
  script_cvs_date("Date: 2019/11/26");

  script_cve_id("CVE-2014-3120");
  script_bugtraq_id(67731);
  script_xref(name:"EDB-ID", value:"33370");
  script_xref(name:"EDB-ID", value:"33588");

  script_name(english:"Elasticsearch 'source' Parameter RCE");
  script_summary(english:"Attempts to execute arbitrary Java code.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts a Java application that is affected by a
remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Elasticsearch application hosted on the remote web server is
affected by a remote code execution vulnerability due to a failure to
properly sanitize user-supplied input to the 'source' parameter of the
'/_search' page. A remote, unauthenticated attacker can exploit this
flaw to execute arbitrary Java code or manipulate files on the remote
host.");
  script_set_attribute(attribute:"see_also", value:"http://bouk.co/blog/elasticsearch-rce/");
  script_set_attribute(attribute:"see_also", value:"https://www.elastic.co/blog/found-elasticsearch-security");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 1.2.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-3120");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'ElasticSearch Dynamic Script Arbitrary Java Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/12/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/05/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/07/17");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:elasticsearch:elasticsearch");
  script_end_attributes();

  script_category(ACT_ATTACK);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("elasticsearch_detect.nbin");
  script_require_keys("installed_sw/Elasticsearch");
  script_require_ports("Services/www", 9200);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("webapp_func.inc");
include("url_func.inc");

app = "Elasticsearch";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:9200);

install = get_single_install(
  app_name            : app,
  port                : port
);

dir  = install['path'];
url  = build_url(qs:dir, port:port);
vuln = FALSE;

j_int  = rand();
j_int2 = rand();
j_int3 = rand();

attack = '{"size":1,"query":{"filtered":{"query":{"match_all":{}}}},"' +
  'script_fields":{"Java Properties":{"script":"import java.lang.*;\\n' +
  'System.getProperties();"}}}&callback=jQuery' + j_int + '_' + j_int2 +
  '&_=' + j_int3;

attack = urlencode(
  str        : attack,
  unreserved : 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.&=_*()',
  case_type  : HEX_UPPERCASE
);
attack = dir+"_search?source="+attack;

res = http_send_recv3(
  method : "GET",
  port   : port,
  item   : attack,
  exit_on_fail : TRUE
);

vuln = (
  ("jQuery" + j_int + "_" + j_int2)  >< res[2] &&
  "java.specification.version"       >< res[2] &&
  "java.version"                     >< res[2] &&
  '"successful":'                    >< res[2]
);

if (!vuln) 
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app, url);

attack = build_url(qs:attack, port:port);
security_report_v4(
  port       : port,
  severity   : SECURITY_WARNING,
  cmd        : "System.getProperties()",
  output     : res[2],
  request    : make_list(attack),
  line_limit : 25
);