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ID

VAR-202201-1492


CVE

CVE-2021-20612


TITLE

Mitsubishi Electric MELSEC-F Series Trust Management Issue Vulnerability

Trust: 0.6

sources: CNNVD: CNNVD-202201-1079

DESCRIPTION

Lack of administrator control over security vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.14 and prior, FX3U-ENET-L Firmware version 1.14 and prior and FX3U-ENET-P502 Firmware version 1.14 and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in communication function of the product or other unspecified effects by sending specially crafted packets to an unnecessary opening of TCP port. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.

Trust: 1.0

sources: NVD: CVE-2021-20612

AFFECTED PRODUCTS

vendor:mitsubishielectricmodel:fx3u-enetscope:lteversion:1.14

Trust: 1.0

vendor:mitsubishielectricmodel:fx3u-enet-lscope:lteversion:1.14

Trust: 1.0

vendor:mitsubishielectricmodel:fx3u-enet-p502scope:lteversion:1.14

Trust: 1.0

sources: NVD: CVE-2021-20612

CVSS

SEVERITY

CVSSV2

CVSSV3

NVD: CVE-2021-20612
value: HIGH

Trust: 1.0

CNNVD: CNNVD-202201-1079
value: HIGH

Trust: 0.6

NVD: CVE-2021-20612
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: FALSE
obtainAllPrivilege: FALSE
obtainUserPrivilege: FALSE
obtainOtherPrivilege: FALSE
userInteractionRequired: FALSE
version: 2.0

Trust: 1.0

NVD: CVE-2021-20612
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

sources: CNNVD: CNNVD-202201-1079 // NVD: CVE-2021-20612

PROBLEMTYPE DATA

problemtype:CWE-798

Trust: 1.0

sources: NVD: CVE-2021-20612

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202201-1079

TYPE

trust management problem

Trust: 0.6

sources: CNNVD: CNNVD-202201-1079

CONFIGURATIONS

sources:
            
            
            NVD: CVE-2021-20612

PATCH
title:Mitsubishi Electric MELSEC-F Series Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=177947
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202201-1079

EXTERNAL IDS
db:JVNid:JVNVU93268332
Trust: 1.6
db:ICS CERTid:ICSA-22-013-01
Trust: 1.6
db:NVDid:CVE-2021-20612
Trust: 1.6
db:CNNVDid:CNNVD-202201-1079
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202201-1079 // 
            
            
            
            NVD: CVE-2021-20612

REFERENCES
url:https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf
Trust: 1.6
url:https://jvn.jp/vu/jvnvu93268332/index.html
Trust: 1.6
url:https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01
Trust: 1.6
url:https://nvd.nist.gov/vuln/detail/cve-2021-20612
Trust: 0.6
url:https://us-cert.cisa.gov/ics/advisories/icsa-22-013-01
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202201-1079 // 
            
            
            
            NVD: CVE-2021-20612

CREDITS
Mitsubishi Electric reported this vulnerability to CISA.
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202201-1079

SOURCES
db:CNNVDid:CNNVD-202201-1079
db:NVDid:CVE-2021-20612

LAST UPDATE DATE
2022-05-04T09:08:18.981000+00:00

SOURCES UPDATE DATE
db:CNNVDid:CNNVD-202201-1079date:2022-02-09T00:00:00
db:NVDid:CVE-2021-20612date:2022-01-21T18:11:00

SOURCES RELEASE DATE
db:CNNVDid:CNNVD-202201-1079date:2022-01-13T00:00:00
db:NVDid:CVE-2021-20612date:2022-01-14T20:15:00