Mitsubishi Electric MELSEC iQ-F FX5-OPC Denial of Service (CVE-2024-0727)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(502483);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/12/18");

  script_cve_id("CVE-2024-0727");
  script_xref(name:"ICSA", value:"24-275-02");

  script_name(english:"Mitsubishi Electric MELSEC iQ-F FX5-OPC Denial of Service (CVE-2024-0727)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A Denial-of-Service (DoS) vulnerability due to NULL Pointer Dereference 
when processing PKCS#12 format certificate exists in OpenSSL installed on 
MELSEC iQ-F OPC UA Unit. Because OpenSSL does not correctly check if a 
certain field in the PKCS#12 format certificate is NULL, a NULL pointer 
dereference occurs when the field is NULL, causing the product to enter 
a Denial-of-Service condition.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2024-006_en.pdf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1c875ffa");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-24-275-02");
  script_set_attribute(attribute:"solution", value:
"Mitsubishi Electric recommends that customers take the following mitigations 
to minimize the risk of exploiting this vulnerability:
 - Use within a LAN and block access from untrusted networks and hosts through firewalls.
 - Restrict physical access to the product, as well as to computers and network devices 
located within the same network as the product.
 - Use a firewall or virtual private network (VPN), etc. to prevent unauthorized access 
when Internet access is required.
 - Use IP filter function to block access from untrusted hosts. For details on the IP filter 
function, please refer to the following manual; MELSEC iQ-F FX5 OPC UA Module User's Manual '4.4 IP Filter'");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-0727");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(476);

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/10/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/10/09");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mitsubishielectric:melsec_iq-fx5-opc");
  script_end_attributes();

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

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

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Mitsubishi');

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

var vuln_cpes = {
    "cpe:/o:mitsubishielectric:melsec_iq-fx5-opc" :
        {"family" : "MELSECiQFCP"}
};

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