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.
#%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);