Details of VAR-202004-1557

ID

VAR-202004-1557

CVE

CVE-2018-21121

TITLE

plural NETGEAR Authentication vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016302

DESCRIPTION

Certain NETGEAR devices are affected by authentication bypass. This affects GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6. NETGEAR GS810EMX , XS512EM , XS724EM There is an authentication vulnerability in the device.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR XS512EM, etc. are all products of NETGEAR. NETGEAR XS512EM is a switch. NETGEAR XS724EM is a switch. NETGEAR GS810EMX is an Ethernet switch. There are security vulnerabilities in NETGEAR GS810EMX versions before 1.0.0.5, XS512EM versions before 1.0.0.6, and XS724EM versions before 1.0.0.6

Trust: 2.16

sources: NVD: CVE-2018-21121 // JVNDB: JVNDB-2018-016302 // CNVD: CNVD-2021-28038

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-28038

AFFECTED PRODUCTS

vendor:	netgear	model:	gs810emx	scope:	lt	version:	1.0.0.5	Trust: 1.6
vendor:	netgear	model:	xs512em	scope:	lt	version:	1.0.0.6	Trust: 1.6
vendor:	netgear	model:	xs724em	scope:	lt	version:	1.0.0.6	Trust: 1.6
vendor:	netgear	model:	gs810emx	scope:	eq	version:	1.0.0.5	Trust: 0.8
vendor:	netgear	model:	xs512em	scope:	eq	version:	1.0.0.6	Trust: 0.8
vendor:	netgear	model:	xs724em	scope:	eq	version:	1.0.0.6	Trust: 0.8

sources: CNVD: CNVD-2021-28038 // JVNDB: JVNDB-2018-016302 // NVD: CVE-2018-21121

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21121
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2018-21121
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2018-016302
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-28038
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1918
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2018-21121
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	6.5
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
NVD:	JVNDB-2018-016302
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2021-28038
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	6.5
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2018-21121
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2018-21121
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2018-016302
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-28038 // JVNDB: JVNDB-2018-016302 // CNNVD: CNNVD-202004-1918 // NVD: CVE-2018-21121 // NVD: CVE-2018-21121

PROBLEMTYPE DATA

problemtype:

CWE-287

Trust: 1.8

sources: JVNDB: JVNDB-2018-016302 // NVD: CVE-2018-21121

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1918

TYPE

authorization issue

Trust: 0.6

sources: CNNVD: CNNVD-202004-1918

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016302

PATCH

title:	Security Advisory for Authentication Bypass on Some Switches, PSV-2018-0219	url:	https://kb.netgear.com/000060237/Security-Advisory-for-Authentication-Bypass-on-Some-Switches-PSV-2018-0219	Trust: 0.8
title:	Patch for Multiple NETGEAR product authorization issue vulnerabilities (CNVD-2021-28038)	url:	https://www.cnvd.org.cn/patchInfo/show/258021	Trust: 0.6
title:	Multiple NETGEAR Product Authorization Issue Vulnerability Fixing Measures	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117251	Trust: 0.6

sources: CNVD: CNVD-2021-28038 // JVNDB: JVNDB-2018-016302 // CNNVD: CNNVD-202004-1918

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21121	Trust: 3.0
db:	JVNDB	id:	JVNDB-2018-016302	Trust: 0.8
db:	CNVD	id:	CNVD-2021-28038	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1918	Trust: 0.6

sources: CNVD: CNVD-2021-28038 // JVNDB: JVNDB-2018-016302 // CNNVD: CNNVD-202004-1918 // NVD: CVE-2018-21121

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21121	Trust: 2.0
url:	https://kb.netgear.com/000060237/security-advisory-for-authentication-bypass-on-some-switches-psv-2018-0219	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21121	Trust: 0.8

sources: CNVD: CNVD-2021-28038 // JVNDB: JVNDB-2018-016302 // CNNVD: CNNVD-202004-1918 // NVD: CVE-2018-21121

SOURCES

db:	CNVD	id:	CNVD-2021-28038
db:	JVNDB	id:	JVNDB-2018-016302
db:	CNNVD	id:	CNNVD-202004-1918
db:	NVD	id:	CVE-2018-21121

LAST UPDATE DATE

2024-11-23T22:29:38.832000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-28038	date:	2021-04-14T00:00:00
db:	JVNDB	id:	JVNDB-2018-016302	date:	2020-05-21T00:00:00
db:	CNNVD	id:	CNNVD-202004-1918	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2018-21121	date:	2024-11-21T04:02:57.130

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-28038	date:	2021-04-14T00:00:00
db:	JVNDB	id:	JVNDB-2018-016302	date:	2020-05-21T00:00:00
db:	CNNVD	id:	CNNVD-202004-1918	date:	2020-04-22T00:00:00
db:	NVD	id:	CVE-2018-21121	date:	2020-04-22T16:15:12.247