Yokogawa STARDOM Authentication Bypass 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:yokogawa:stardom_fcn-fcj";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106271");
  script_version("2025-09-05T15:40:40+0000");
  script_tag(name:"last_modification", value:"2025-09-05 15:40:40 +0000 (Fri, 05 Sep 2025)");
  script_tag(name:"creation_date", value:"2016-09-20 10:41:21 +0700 (Tue, 20 Sep 2016)");
  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:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-11-28 20:21:00 +0000 (Mon, 28 Nov 2016)");

  script_cve_id("CVE-2016-4860");

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

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

  script_name("Yokogawa STARDOM Authentication Bypass Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("General");
  script_dependencies("gb_yokogawa_stardom_detect.nasl");
  script_mandatory_keys("yokogawa_stardom/detected");

  script_tag(name:"summary", value:"Yokogawa STARDOM is prone to an authenticatio bypass vulnerability.");

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

  script_tag(name:"insight", value:"Logic Designer can connect to STARDOM controller without authentication.");

  script_tag(name:"impact", value:"An attacker may be able to exploit this vulnerability to execute commands
such as stop application program, change values, and modify application.");

  script_tag(name:"affected", value:"STARDOM FCN/FCJ controller (from Version R1.01 to R4.01).");

  script_tag(name:"solution", value:"Update to version R4.02 or later.");

  script_xref(name:"URL", value:"https://web-material3.yokogawa.com/YSAR-16-0002-E.pdf");
  script_xref(name:"URL", value:"https://ics-cert.us-cert.gov/advisories/ICSA-16-259-01");

  exit(0);
}

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

if (!version = get_app_version(cpe: CPE))
  exit(0);

if (version_is_less(version: version, test_version: "r4.02")) {
  report = report_fixed_ver(installed_version: toupper(version), fixed_version: "R4.02");
  security_message(port: 0, data: report);
  exit(0);
}

exit(0);