Schneider Electric Modicon Devices DoS Vulnerability (SEVD-2017-048-02)

# SPDX-FileCopyrightText: 2017 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

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106630");
  script_version("2025-08-28T05:39:05+0000");
  script_tag(name:"last_modification", value:"2025-08-28 05:39:05 +0000 (Thu, 28 Aug 2025)");
  script_tag(name:"creation_date", value:"2017-03-03 14:24:24 +0700 (Fri, 03 Mar 2017)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-12-24 16:29:00 +0000 (Mon, 24 Dec 2018)");

  script_cve_id("CVE-2017-6017");

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

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

  script_name("Schneider Electric Modicon Devices DoS Vulnerability (SEVD-2017-048-02)");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_schneider_modbus_detect.nasl");
  script_mandatory_keys("schneider_electric/detected", "schneider_electric/product",
                        "schneider_electric/version");

  script_tag(name:"summary", value:"Schneider Electric Modicon devices are prone to a denial of
  service (DoS) vulnerability.");

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

  script_tag(name:"insight", value:"During communication between the operator and PLC using function
  code 0x5A of Modbus, it is possible to send a specially crafted set of packets to the PLC and
  cause it to freeze, requiring the operator to physically press the reset button of the PLC in
  order to recover.");

  script_tag(name:"impact", value:"Successful exploitation of this vulnerability may render the
  device unresponsive requiring a physical reset of the PLC.");

  script_tag(name:"affected", value:"Schneider Electric devices:

  - Modicon M580 CPU (part numbers BMEP* and BMEH*) prior to version 2.30

  - Modicon M340 CPU (part numbers BMXP34*) prior to version 2.90

  - Modicon Quantum CPU (part numbers 140CPU65* and 140CPU67*) prior to version 3.52

  - Modicon Premium CPUs (part numbers TSXP57*) prior to version 3.22");

  script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");

  script_xref(name:"URL", value:"https://www.se.com/us/en/download/document/SEVD-2017-048-02/");
  script_xref(name:"URL", value:"https://ics-cert.us-cert.gov/advisories/ICSA-17-054-03");

  exit(0);
}

include("version_func.inc");

prod = get_kb_item("schneider_electric/product");
if (!prod || (prod !~ "^BME\s*[PH]" && prod !~ "^BMX\s*P34" && prod !~ "^140CPU6[57]" &&
    prod !~ "^TSXP57"))
  exit(0);

if (!version = get_kb_item("schneider_electric/version"))
  exit(0);

if (prod =~ "^BME\s*[PH]" && version_is_less(version: version, test_version: "2.30")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.30");
  security_message(port: 0, data: report);
  exit(0);
}

if (prod =~ "^BMX\s*P34" && version_is_less(version: version, test_version: "2.90")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.90");
  security_message(port: 0, data: report);
  exit(0);
}

if (prod =~ "^140CPU6[57]" && version_is_less(version: version, test_version: "3.52")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "3.52");
  security_message(port: 0, data: report);
  exit(0);
}

if (prod =~ "^TSXP57" && version_is_less(version: version, test_version: "3.22")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "3.22");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);