Elastic Logstash 'CVE-2014-4326' RCE Vulnerability

# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:elastic:logstash";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.808095");
  script_version("2026-03-10T10:15:11+0000");
  script_cve_id("CVE-2014-4326");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2026-03-10 10:15:11 +0000 (Tue, 10 Mar 2026)");
  script_tag(name:"creation_date", value:"2016-06-24 17:58:32 +0530 (Fri, 24 Jun 2016)");
  script_name("Elastic Logstash 'CVE-2014-4326' RCE Vulnerability");

  script_tag(name:"summary", value:"Elastic Logstash is prone to a remote code execution (RCE)
  vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The Flaw is due improper validation of inputs passed to
  'zabbix.rb' and 'nagios_nsca.rb' outputs.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to execute
  arbitrary commands.");

  script_tag(name:"qod_type", value:"remote_banner");

  script_tag(name:"affected", value:"Elastic Logstash version prior to 1.4.2.");

  script_tag(name:"solution", value:"Update to version 1.4.2 or later.");

  script_tag(name:"solution_type", value:"VendorFix");

  script_xref(name:"URL", value:"https://www.elastic.co/community/security/");
  script_xref(name:"URL", value:"http://www.securityfocus.com/archive/1/archive/1/532841/100/0/threaded");

  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("General");
  script_dependencies("gb_elastic_logstash_consolidation.nasl");
  script_mandatory_keys("elastic/logstash/detected");

  exit(0);
}

include("version_func.inc");
include("host_details.inc");

if (isnull(port = get_app_port(cpe: CPE)))
  exit(0);

if (!infos = get_app_version_and_location(cpe: CPE, port: port, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
path = infos["location"];

if (version_is_less(version: version, test_version: "1.4.2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.4.2", install_path: path);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);