Omron CP1L-EL20DR-D Memory Arbitrary Read/Write (CVE-2023-22357)

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

include('compat.inc');

if (description)
{
  script_id(501149);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/06");

  script_cve_id("CVE-2023-22357");

  script_name(english:"Omron CP1L-EL20DR-D Memory Arbitrary Read/Write (CVE-2023-22357)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"Active debug code exists in OMRON CP1L-EL20DR-D all versions, which
may lead to a command that is not specified in FINS protocol being
executed without authentication. A remote unauthenticated attacker may
read/write in arbitrary area of the device memory, which may lead to
overwriting the firmware, causing a denial-of-service (DoS) condition,
and/or arbitrary code execution.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  script_set_attribute(attribute:"see_also", value:"https://jvn.jp/en/vu/JVNVU97575890/index.html");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-22357");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/01/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/05/22");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:omron:cp1l-el20dr-d_firmware");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Omron');

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

var vuln_cpes = {
    "cpe:/o:omron:cp1l-el20dr-d_firmware" :
        {"versionEndExcluding" : "1.1", "family" : "CP"}
};

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