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
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
AI Score
Confidence
High
EPSS
Percentile
73.9%
Session fixation vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are β02β or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are β01β or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are β08β or before, RD81MES96N MES Interface Module First 2 digits of serial number are β04β or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are β04β or before) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.
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(500586);
script_version("1.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/04");
script_cve_id("CVE-2020-5654");
script_xref(name:"ICSA", value:"20-303-02");
script_name(english:"Mitsubishi Electric MELSEC iQ-R Session Fixation (CVE-2020-5654)");
script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"Session fixation vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP
Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module
First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial
number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and
RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated
attacker to stop the network functions of the products via a specially crafted packet.
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/2020-012_en.pdf
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?68cc937d");
script_set_attribute(attribute:"see_also", value:"https://jvn.jp/vu/JVNVU92513419/index.html");
script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-20-303-02");
# https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdf
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?51cd1baa");
script_set_attribute(attribute:"solution", value:
"The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original
can be found at CISA.gov.
Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting these
vulnerabilities:
- Block access from untrusted networks and hosts through firewalls.
Please refer to Mitsubishi ElectricΓ’ΒΒs website for details on available patches. Mitsubishi recommends users update their
products by downloading and applying the latest versions. Please contact a Mitsubishi Electric representative for
additional details.");
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-2020-5654");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(384);
script_set_attribute(attribute:"vuln_publication_date", value:"2020/11/02");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/02");
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:mitsubishielectric:melsec_iq-rj71eip91_firmware:-");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mitsubishielectric:melsec_iq-rj71pn92_firmware:-");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mitsubishielectric:melsec_iq-rd81dl96_firmware:-");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mitsubishielectric:melsec_iq-rd81mes96n_firmware:-");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mitsubishielectric:melsec_iq-rd81opc96_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/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-rj71eip91_firmware:-" :
{"family" : "MELSECiQRCP"},
"cpe:/o:mitsubishielectric:melsec_iq-rj71pn92_firmware:-" :
{"family" : "MELSECiQRCP"},
"cpe:/o:mitsubishielectric:melsec_iq-rd81dl96_firmware:-" :
{"family" : "MELSECiQRCP"},
"cpe:/o:mitsubishielectric:melsec_iq-rd81mes96n_firmware:-" :
{"family" : "MELSECiQRCP"},
"cpe:/o:mitsubishielectric:melsec_iq-rd81opc96_firmware:-" :
{"family" : "MELSECiQRCP"}
};
tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);
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
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
AI Score
Confidence
High
EPSS
Percentile
73.9%