5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
31.0%
A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior) This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(500604);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/24");
script_cve_id("CVE-2021-22800");
script_name(english:"Schneider Electric Modicon Improper Input Validation (CVE-2021-22800)");
script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is
sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior)
This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.
- A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a
crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic
Controller (V5.1.0.6 and prior) (CVE-2021-22800)");
# https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-04
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7f0d7c4d");
script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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: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-2021-22800");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(20);
script_set_attribute(attribute:"vuln_publication_date", value:"2022/02/11");
script_set_attribute(attribute:"patch_publication_date", value:"2022/02/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/02/18");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m218_series_firmware");
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_m218_series_firmware" :
{"versionEndIncluding" : "5.1.0.6", "family" : "ModiconM218"}
};
tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);
Vendor | Product | Version | CPE |
---|---|---|---|
schneider-electric | modicon_m218_series_firmware | cpe:/o:schneider-electric:modicon_m218_series_firmware |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
31.0%