Details of VAR-202102-0481

ID

VAR-202102-0481

CVE

CVE-2021-20640

TITLE

Multiple vulnerabilities in multiple Logitec products

Trust: 0.8

sources: JVNDB: JVNDB-2021-000010

DESCRIPTION

Buffer overflow vulnerability in LOGITEC LAN-W300N/PGRB allows an attacker with administrative privilege to execute an arbitrary OS command via unspecified vectors. The following multiple vulnerabilities exist in multiple products provided by Logitec Co., Ltd. -Inappropriate restriction of excessive authentication attempts (CWE-307) - CVE-2021-20635 ・ Cross-site request forgery (CWE-352) - CVE-2021-20636, CVE-2021-20641 • Improper checking or handling for exceptional situations (CWE-703) - CVE-2021-20637, CVE-2021-20642 ・ OS Command injection (CWE-78) - CVE-2021-20638 ・ OS Command injection (CWE-78) - CVE-2021-20639 ・ Buffer overflow (CWE-119) - CVE-2021-20640 CVE-2021-20635 This vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Kanagawa Institute of Technology Minegishi Takaaki Mr. Okamoto Tsuyoshi Mr CVE-2021-20636, CVE-2021-20637, CVE-2021-20642 These vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : LAC Co., Ltd. Shuto Kono Mr CVE-2021-20638, CVE-2021-20639, CVE-2021-20640 These vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Mitsui Bussan Secure Direction Co., Ltd. Tsukamoto Taizo Mr CVE-2021-20641 This vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : LAC Co., Ltd. Shuto Kono Mr. Techmatrix Corporation Atsuo Sakurai MrThe expected impact depends on each vulnerability, but it may be affected as follows. ・ Wireless of the corresponding device LAN By a third party within reach PIN Is decrypted and the network provided by the device is accessed. - CVE-2021-20635 ・ Of the product Web The user logged in to the admin page has been crafted URL You can unintentionally change the settings of the product by accessing - CVE-2021-20636, CVE-2021-20641 ・ Of the product Web The user logged in to the admin page has been crafted URL Interfering with service operations by accessing (DoS) Be attacked - CVE-2021-20637, CVE-2021-20642 ・ Of the product Web Arbitrary by an attacker with access to the admin page OS Command is executed - CVE-2021-20638, CVE-2021-20639, CVE-2021-20640. LOGITEC CORPORATION LAN-W300N/PGRB is a wireless router device. LOGITEC CORPORATION LAN-W300N/PGRB has a buffer overflow vulnerability. Logitec LAN-W300N/PGRB is vulnerable to a buffer overflow, caused by improper bounds checking

Trust: 2.25

sources: NVD: CVE-2021-20640 // JVNDB: JVNDB-2021-000010 // CNVD: CNVD-2021-58247 // VULMON: CVE-2021-20640

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-58247

AFFECTED PRODUCTS

vendor:	logitech	model:	lan-w300n\/pgrb	scope:	eq	version:	-	Trust: 1.0
vendor:	logitec	model:	lan-w300n/pgrb	scope:	eq	version:	(cve-2021-20638, cve-2021-20639, cve-2021-20640)	Trust: 0.8
vendor:	logitec	model:	lan-w300n/pr5b	scope:	eq	version:	(cve-2021-20636, cve-2021-20637)	Trust: 0.8
vendor:	logitec	model:	lan-w300n/rs	scope:	eq	version:	(cve-2021-20641, cve-2021-20642)	Trust: 0.8
vendor:	logitec	model:	lan-wh450n/gr	scope:	eq	version:	(cve-2021-20635)	Trust: 0.8
vendor:	logitec	model:	lan-w300n/pgrb	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2021-58247 // JVNDB: JVNDB-2021-000010 // NVD: CVE-2021-20640

CVSS

SEVERITY

CVSSV2

CVSSV3

IPA:	JVNDB-2021-000010
value:	MEDIUM
Trust: 4.8
nvd@nist.gov:	CVE-2021-20640
value:	MEDIUM
Trust: 1.0
CNVD:	CNVD-2021-58247
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202101-2381
value:	MEDIUM
Trust: 0.6

IPA:	JVNDB-2021-000010
severity:	MEDIUM
baseScore:	5.2
vectorString:	AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 2.4
nvd@nist.gov:	CVE-2021-20640
severity:	HIGH
baseScore:	7.7
vectorString:	AV:A/AC:L/AU:S/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	5.1
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
IPA:	JVNDB-2021-000010
severity:	LOW
baseScore:	3.3
vectorString:	AV:A/AC:L/AU:N/C:P/I:N/A:N
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
IPA:	JVNDB-2021-000010
severity:	MEDIUM
baseScore:	4.0
vectorString:	AV:N/AC:H/AU:N/C:P/I:P/A:N
accessVector:	NETWORK
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
IPA:	JVNDB-2021-000010
severity:	LOW
baseScore:	2.6
vectorString:	AV:N/AC:H/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2021-58247
severity:	HIGH
baseScore:	7.7
vectorString:	AV:A/AC:L/AU:S/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	5.1
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

IPA:	JVNDB-2021-000010
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 2.4
nvd@nist.gov:	CVE-2021-20640
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.9
impactScore:	5.9
version:	3.1
Trust: 1.0
IPA:	JVNDB-2021-000010
baseSeverity:	MEDIUM
baseScore:	4.3
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8
IPA:	JVNDB-2021-000010
baseSeverity:	MEDIUM
baseScore:	4.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	REQUIRED
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	LOW
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8
IPA:	JVNDB-2021-000010
baseSeverity:	MEDIUM
baseScore:	4.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	REQUIRED
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-58247 // JVNDB: JVNDB-2021-000010 // JVNDB: JVNDB-2021-000010 // JVNDB: JVNDB-2021-000010 // JVNDB: JVNDB-2021-000010 // JVNDB: JVNDB-2021-000010 // JVNDB: JVNDB-2021-000010 // CNNVD: CNNVD-202101-2381 // NVD: CVE-2021-20640

PROBLEMTYPE DATA

problemtype:	CWE-120	Trust: 1.0
problemtype:	CWE-78	Trust: 0.8
problemtype:	CWE-Other	Trust: 0.8
problemtype:	CWE-352	Trust: 0.8
problemtype:	CWE-119	Trust: 0.8
problemtype:	CWE-287	Trust: 0.8

sources: JVNDB: JVNDB-2021-000010 // NVD: CVE-2021-20640

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202101-2381

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202101-2381

CONFIGURATIONS

sources: JVNDB: JVNDB-2021-000010

PATCH

title:	無線LANルーターなどネットワーク製品の一部における脆弱性に関して	url:	https://www.elecom.co.jp/news/security/20210126-01/	Trust: 0.8
title:	Patch for LOGITEC CORPORATION LAN-W300N/PGRB buffer overflow vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/283996	Trust: 0.6

sources: CNVD: CNVD-2021-58247 // JVNDB: JVNDB-2021-000010

EXTERNAL IDS

db:	NVD	id:	CVE-2021-20640	Trust: 3.1
db:	JVN	id:	JVN96783542	Trust: 2.4
db:	JVNDB	id:	JVNDB-2021-000010	Trust: 1.4
db:	CNVD	id:	CNVD-2021-58247	Trust: 0.6
db:	CNNVD	id:	CNNVD-202101-2381	Trust: 0.6
db:	VULMON	id:	CVE-2021-20640	Trust: 0.1

sources: CNVD: CNVD-2021-58247 // VULMON: CVE-2021-20640 // JVNDB: JVNDB-2021-000010 // CNNVD: CNNVD-202101-2381 // NVD: CVE-2021-20640

REFERENCES

url:	https://www.elecom.co.jp/news/security/20210126-01/	Trust: 2.2
url:	https://jvn.jp/en/jp/jvn96783542/index.html	Trust: 1.6
url:	https://lists.apache.org/thread.html/rc1778b38e74b5b6142414d57623bd55b023a72361f422836782fca3c%40%3cdev.tomcat.apache.org%3e	Trust: 1.0
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20641	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20642	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20635	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20636	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20637	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20638	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20639	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20640	Trust: 0.8
url:	https://jvn.jp/jp/jvn96783542/index.html	Trust: 0.8
url:	https://lists.apache.org/thread.html/rc1778b38e74b5b6142414d57623bd55b023a72361f422836782fca3c@%3cdev.tomcat.apache.org%3e	Trust: 0.6
url:	https://jvndb.jvn.jp/en/contents/2021/jvndb-2021-000010.html	Trust: 0.6
url:	https://nvd.nist.gov/vuln/detail/cve-2021-20640	Trust: 0.6
url:	https://exchange.xforce.ibmcloud.com/vulnerabilities/195622	Trust: 0.1

sources: CNVD: CNVD-2021-58247 // VULMON: CVE-2021-20640 // JVNDB: JVNDB-2021-000010 // CNNVD: CNNVD-202101-2381 // NVD: CVE-2021-20640

SOURCES

db:	CNVD	id:	CNVD-2021-58247
db:	VULMON	id:	CVE-2021-20640
db:	JVNDB	id:	JVNDB-2021-000010
db:	CNNVD	id:	CNNVD-202101-2381
db:	NVD	id:	CVE-2021-20640

LAST UPDATE DATE

2024-08-14T13:23:51.001000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-58247	date:	2021-08-04T00:00:00
db:	VULMON	id:	CVE-2021-20640	date:	2021-02-15T00:00:00
db:	JVNDB	id:	JVNDB-2021-000010	date:	2021-01-26T03:17:11
db:	CNNVD	id:	CNNVD-202101-2381	date:	2022-02-11T00:00:00
db:	NVD	id:	CVE-2021-20640	date:	2023-11-07T03:29:09.473

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-58247	date:	2021-08-04T00:00:00
db:	VULMON	id:	CVE-2021-20640	date:	2021-02-12T00:00:00
db:	JVNDB	id:	JVNDB-2021-000010	date:	2021-01-26T03:17:11
db:	CNNVD	id:	CNNVD-202101-2381	date:	2021-01-26T00:00:00
db:	NVD	id:	CVE-2021-20640	date:	2021-02-12T07:15:14.810