Vulnerabilities > CVE-2014-4326 - OS Command Injection vulnerability in Elastic Logstash

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

include("compat.inc");

if (description)
{
  script_id(119461);
  script_version("1.2");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id("CVE-2014-4326");

  script_name(english:"Logstash ESA-2014-02");
  script_summary(english:"Checks the version of Logstash.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts a Java application that is vulnerable.");
  script_set_attribute(attribute:"description", value:
"Logstash 1.4.1 and prior, when configured to use the Zabbix or Nagios
outputs, allows an attacker with access to send crafted events to
Logstash inputs to cause Logstash to execute OS commands.");
  # https://www.elastic.co/community/security
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3f00797e");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Logstash 1.4.2 or later, or disable the Zabbix and Nagios
outputs.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-4326");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/06/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/06/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/06");

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

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

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("logstash_api_detect.nbin");
  script_require_keys("installed_sw/Logstash");
  script_require_ports("Services/www", 9600);

  exit(0);
}

include("audit.inc");
include("http.inc");
include("vcf.inc");

app = "Logstash";

get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:9600);

app_info = vcf::get_app_info(app:app, port:port, webapp:TRUE);

constraints = [
  { "fixed_version" : "1.4.2" }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);

#
# (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(84380);
  script_version("2.3");
  script_cvs_date("Date: 2019/07/10 16:04:13");

  script_cve_id("CVE-2014-4326");

  script_name(english:"FreeBSD : logstash -- Remote command execution in Logstash zabbix and nagios_nsca outputs (2184ccad-1a10-11e5-b43d-002590263bf5)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Elastic reports :

The vulnerability impacts deployments that use the either the zabbix
or the nagios_nsca outputs. In these cases, an attacker with an
ability to send crafted events to any source of data for Logstash
could execute operating system commands with the permissions of the
Logstash process.

Deployments that do not use the zabbix or the nagios_nsca outputs are
not vulnerable and do not need to upgrade for this reason.

We have added this vulnerability to our CVE page and are working on
filling out the CVE.

We would like to thank Jan Karwowski and Danila Borisiuk for reporting
the issue and working with us on the resolution."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.elastic.co/blog/logstash-1-4-2"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.elastic.co/community/security"
  );
  # https://vuxml.freebsd.org/freebsd/2184ccad-1a10-11e5-b43d-002590263bf5.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f568ed62"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  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:freebsd:freebsd:logstash");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/06/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/06/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/06/25");
  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:"logstash<1.4.2")) 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");