Details of VAR-202011-1261

ID

VAR-202011-1261

CVE

CVE-2020-5668

TITLE

Made by Mitsubishi Electric MELSEC iQ-R Resource exhaustion vulnerabilities in the series

Trust: 0.8

sources: JVNDB: JVNDB-2020-009595

DESCRIPTION

Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series modules (R00/01/02CPU firmware version '19' and earlier, R04/08/16/32/120 (EN) CPU firmware version '51' and earlier, R08/16/32/120SFCPU firmware version '22' and earlier, R08/16/32/120PCPU firmware version '25' and earlier, R08/16/32/120PSFCPU firmware version '06' and earlier, RJ71EN71 firmware version '47' and earlier, RJ71GF11-T2 firmware version '47' and earlier, RJ72GF15-T2 firmware version '07' and earlier, RJ71GP21-SX firmware version '47' and earlier, RJ71GP21S-SX firmware version '47' and earlier, and RJ71GN11-T2 firmware version '11' and earlier) allows a remote unauthenticated attacker to cause an error in a CPU unit and cause a denial-of-service (DoS) condition in execution of the program and its communication, or to cause a denial-of-service (DoS) condition in communication via the unit by receiving a specially crafted SLMP packet. Provided by Mitsubishi Electric Corporation MELSEC iQ-R Resource exhaustion vulnerabilities in series units (CWE-400) Exists This vulnerability information is provided by the developer for the purpose of making it known to product users. JPCERT/CC Report to JPCERT/CC Coordinated with the developers.Crafted by a remote third party SLMP Receiving packets can have the following effects: * CPU In the case of a unit, an error occurs and program execution and communication interfere with service operation. (DoS) Become in a state * CPU In the case of other than the unit, communication via the unit interferes with service operation. (DoS) In addition, a reset is required for recovery

Trust: 1.62

sources: NVD: CVE-2020-5668 // JVNDB: JVNDB-2020-009595

AFFECTED PRODUCTS

vendor:	mitsubishielectric	model:	r32cpu	scope:	lte	version:	51	Trust: 1.0
vendor:	mitsubishielectric	model:	rj71en71	scope:	lte	version:	47	Trust: 1.0
vendor:	mitsubishielectric	model:	r16pcpu	scope:	lte	version:	25	Trust: 1.0
vendor:	mitsubishielectric	model:	r01cpu	scope:	lte	version:	19	Trust: 1.0
vendor:	mitsubishielectric	model:	rj71gp21s-sx	scope:	lte	version:	47	Trust: 1.0
vendor:	mitsubishielectric	model:	rj71c24-r4	scope:	lte	version:	47	Trust: 1.0
vendor:	mitsubishielectric	model:	r00cpu	scope:	lte	version:	19	Trust: 1.0
vendor:	mitsubishielectric	model:	r08cpu	scope:	lte	version:	51	Trust: 1.0
vendor:	mitsubishielectric	model:	r32sfcpu	scope:	lte	version:	22	Trust: 1.0
vendor:	mitsubishielectric	model:	rj71c24-r2	scope:	lte	version:	47	Trust: 1.0
vendor:	mitsubishielectric	model:	r04cpu	scope:	lte	version:	51	Trust: 1.0
vendor:	mitsubishielectric	model:	r08psfcpu	scope:	lte	version:	06	Trust: 1.0
vendor:	mitsubishielectric	model:	r16psfcpu	scope:	lte	version:	06	Trust: 1.0
vendor:	mitsubishielectric	model:	r120pcpu	scope:	lte	version:	25	Trust: 1.0
vendor:	mitsubishielectric	model:	r32pcpu	scope:	lte	version:	25	Trust: 1.0
vendor:	mitsubishielectric	model:	r120cpu	scope:	lte	version:	51	Trust: 1.0
vendor:	mitsubishielectric	model:	r02cpu	scope:	lte	version:	19	Trust: 1.0
vendor:	mitsubishielectric	model:	r32psfcpu	scope:	lte	version:	06	Trust: 1.0
vendor:	mitsubishielectric	model:	rj71gf11-t2	scope:	lte	version:	47	Trust: 1.0
vendor:	mitsubishielectric	model:	rj72gf15-t2	scope:	lte	version:	07	Trust: 1.0
vendor:	mitsubishielectric	model:	r08sfcpu	scope:	lte	version:	22	Trust: 1.0
vendor:	mitsubishielectric	model:	r16sfcpu	scope:	lte	version:	22	Trust: 1.0
vendor:	mitsubishielectric	model:	r16cpu	scope:	lte	version:	51	Trust: 1.0
vendor:	mitsubishielectric	model:	r120sfcpu	scope:	lte	version:	22	Trust: 1.0
vendor:	mitsubishielectric	model:	rj71gn11-t2	scope:	lte	version:	11	Trust: 1.0
vendor:	mitsubishielectric	model:	r08pcpu	scope:	lte	version:	25	Trust: 1.0
vendor:	mitsubishielectric	model:	r120psfcpu	scope:	lte	version:	06	Trust: 1.0
vendor:	mitsubishielectric	model:	rj71gp21-sx	scope:	lte	version:	47	Trust: 1.0
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	eq	version:	-	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series rj71gp21s-sx firmware "47" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series rj71gp21-sx firmware "47" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	eq	version:	melsec iq-r series rj71gn11-t2 firmware "11" and later	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series rj72gf15-t2 firmware "07" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series r00/01/02cpu firmware "19" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series rj71en71 firmware "47" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series r08/16/32/120psfcpu firmware "06" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	-	version:	-	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	eq	version:	melsec iq-r series rj71c24 (-r2/r4) all s	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series r08/16/32/120sfcpu firmware "22" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series rj71gf11-t2 firmware "47" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series r08/16/32/120pcpu firmware "25" and earlier	Trust: 0.8
vendor:	三菱電機	model:	melsec iq-r シリーズ	scope:	lte	version:	melsec iq-r series r04/08/16/32/120 (en) cpu firmware "51" and earlier	Trust: 0.8

sources: JVNDB: JVNDB-2020-009595 // NVD: CVE-2020-5668

CVSS

SEVERITY

CVSSV2

CVSSV3

NVD:	CVE-2020-5668
value:	HIGH
Trust: 1.0
IPA:	JVNDB-2020-009595
value:	HIGH
Trust: 0.8
CNNVD:	CNNVD-202011-1663
value:	HIGH
Trust: 0.6

NVD:	CVE-2020-5668
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-2020-5668
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
IPA:	JVNDB-2020-009595
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/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:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2020-009595 // CNNVD: CNNVD-202011-1663 // NVD: CVE-2020-5668

PROBLEMTYPE DATA

problemtype:	CWE-400	Trust: 1.0
problemtype:	Resource exhaustion (CWE-400) [IPA Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2020-009595 // NVD: CVE-2020-5668

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202011-1663

TYPE

resource management error

Trust: 0.6

sources: CNNVD: CNNVD-202011-1663

CONFIGURATIONS

sources: NVD: CVE-2020-5668

PATCH

title:	MELSEC iQ-R Of the series Ethernet Denial of service on port (DoS) Vulnerability	url:	https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-016.pdf	Trust: 0.8
title:	Mitsubishi Electric MELSEC iQ-R series Remediation of resource management error vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=137118	Trust: 0.6

sources: JVNDB: JVNDB-2020-009595 // CNNVD: CNNVD-202011-1663

EXTERNAL IDS

db:	JVN	id:	JVNVU95980140	Trust: 2.4
db:	ICS CERT	id:	ICSA-20-324-05	Trust: 2.4
db:	NVD	id:	CVE-2020-5668	Trust: 2.4
db:	JVNDB	id:	JVNDB-2020-009595	Trust: 0.8
db:	AUSCERT	id:	ESB-2020.4117	Trust: 0.6
db:	CNNVD	id:	CNNVD-202011-1663	Trust: 0.6

sources: JVNDB: JVNDB-2020-009595 // CNNVD: CNNVD-202011-1663 // NVD: CVE-2020-5668

REFERENCES

url:	https://us-cert.cisa.gov/ics/advisories/icsa-20-324-05	Trust: 3.0
url:	https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-016.pdf	Trust: 1.6
url:	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-016_en.pdf	Trust: 1.6
url:	https://jvn.jp/vu/jvnvu95980140/index.html	Trust: 1.6
url:	https://jvn.jp/vu/jvnvu95980140	Trust: 0.8
url:	https://www.auscert.org.au/bulletins/esb-2020.4117/	Trust: 0.6
url:	https://nvd.nist.gov/vuln/detail/cve-2020-5668	Trust: 0.6

sources: JVNDB: JVNDB-2020-009595 // CNNVD: CNNVD-202011-1663 // NVD: CVE-2020-5668

CREDITS

Xiaofei.Zhang reported this vulnerability to Mitsubishi Electric.

Trust: 0.6

sources: CNNVD: CNNVD-202011-1663

SOURCES

db:	JVNDB	id:	JVNDB-2020-009595
db:	CNNVD	id:	CNNVD-202011-1663
db:	NVD	id:	CVE-2020-5668

LAST UPDATE DATE

2022-05-04T09:59:40.179000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2020-009595	date:	2021-09-15T06:01:00
db:	CNNVD	id:	CNNVD-202011-1663	date:	2021-12-20T00:00:00
db:	NVD	id:	CVE-2020-5668	date:	2022-04-29T13:21:00

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2020-009595	date:	2020-11-20T00:00:00
db:	CNNVD	id:	CNNVD-202011-1663	date:	2020-11-19T00:00:00
db:	NVD	id:	CVE-2020-5668	date:	2020-11-20T04:15:00