Schneider Electric Modicon Improper Authentication (CVE-2018-7847)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(500328);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/24");

  script_cve_id("CVE-2018-7847");

  script_name(english:"Schneider Electric Modicon Improper Authentication (CVE-2018-7847)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A CWE-284: Improper Access Control vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon
Quantum, and Modicon Premium which could cause denial of service or potential code execution by overwriting
configuration settings of the controller over Modbus.  

This plugin only works with Tenable.ot. Please visit
https://www.tenable.com/products/tenable-ot for more information.");
  # https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0743
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c0ded1b9");
  # https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0742
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f3265e28");
  # https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2019-134-11
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a432fe19");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-7847");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(284);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/02/07");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_quantum_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_premium_firmware");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  script_copyright(english:"This script is Copyright (C) 2022-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Schneider");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Schneider');

var asset = tenable_ot::assets::get(vendor:'Schneider');

var vuln_cpes = {
    "cpe:/o:schneider-electric:modicon_m580_series_firmware" :
        {"versionEndExcluding" : "2.90", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m340_series_firmware" :
        {"versionEndExcluding" : "3.10", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_quantum_firmware" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:modicon_premium_firmware" :
        {"family" : "Premium"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);