5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
74.3%
A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.
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(500125);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/24");
script_cve_id("CVE-2018-7846");
script_name(english:"Schneider Electric Modicon Exposure of Resource to Wrong Sphere (CVE-2018-7846)");
script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon
M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute
force attack on Modbus protocol to the controller.
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-2018-0735
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?88d42ef7");
# 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:N/A:N");
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-2018-7846");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
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_WARNING);
Vendor | Product | Version | CPE |
---|---|---|---|
schneider-electric | modicon_m580_series_firmware | cpe:/o:schneider-electric:modicon_m580_series_firmware | |
schneider-electric | modicon_m340_series_firmware | cpe:/o:schneider-electric:modicon_m340_series_firmware | |
schneider-electric | modicon_quantum_firmware | cpe:/o:schneider-electric:modicon_quantum_firmware | |
schneider-electric | modicon_premium_firmware | cpe:/o:schneider-electric:modicon_premium_firmware |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
74.3%