Details of VAR-202004-1699

ID

VAR-202004-1699

CVE

CVE-2018-21188

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016373

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D7800 before 1.0.1.30, R7500v2 before 1.0.3.24, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62. plural NETGEAR The device is vulnerable to out-of-bounds writes.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR D7800, etc. are all products of NETGEAR. NETGEAR D7800 is a wireless modem. NETGEAR R7500 is a wireless router. NETGEAR WNDR3700 is a wireless router. The vulnerability stems from the fact that the network system or product performs an operation on the memory, and the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. The attacker The vulnerability can be exploited to cause buffer overflow or heap overflow. This affects D7800 prior to 1.0.1.30, R7500v2 prior to 1.0.3.24, R7800 prior to 1.0.2.40, R9000 prior to 1.0.2.52, WNDR3700v4 prior to 1.0.2.92, WNDR4300 prior to 1.0.2.94, WNDR4300v2 prior to 1.0.0.50, WNDR4500v3 prior to 1.0.0.50, and WNR2000v5 prior to 1.0.0.62

Trust: 2.25

sources: NVD: CVE-2018-21188 // JVNDB: JVNDB-2018-016373 // CNVD: CNVD-2020-28248 // VULMON: CVE-2018-21188

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-28248

AFFECTED PRODUCTS

vendor:	netgear	model:	r7800	scope:	lt	version:	1.0.2.40	Trust: 1.6
vendor:	netgear	model:	r9000	scope:	lt	version:	1.0.2.52	Trust: 1.6
vendor:	netgear	model:	d7800	scope:	lt	version:	1.0.1.30	Trust: 1.6
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.2.94	Trust: 1.6
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.3.24	Trust: 1.0
vendor:	netgear	model:	wndr4500	scope:	lt	version:	1.0.0.50	Trust: 1.0
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.0.50	Trust: 1.0
vendor:	netgear	model:	wnr2000	scope:	lt	version:	1.0.0.62	Trust: 1.0
vendor:	netgear	model:	wndr3700	scope:	lt	version:	1.0.2.92	Trust: 1.0
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.30	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.24	Trust: 0.8
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.40	Trust: 0.8
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.52	Trust: 0.8
vendor:	netgear	model:	wndr3700	scope:	eq	version:	1.0.2.92	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.50	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.94	Trust: 0.8
vendor:	netgear	model:	wndr4500	scope:	eq	version:	1.0.0.50	Trust: 0.8
vendor:	netgear	model:	wnr2000	scope:	eq	version:	1.0.0.62	Trust: 0.8
vendor:	netgear	model:	wnr2000v5	scope:	lt	version:	1.0.0.62	Trust: 0.6
vendor:	netgear	model:	r7500v2	scope:	lt	version:	1.0.3.24	Trust: 0.6
vendor:	netgear	model:	wndr3700v4	scope:	lt	version:	1.0.2.92	Trust: 0.6
vendor:	netgear	model:	wndr4300v2	scope:	lt	version:	1.0.0.50	Trust: 0.6
vendor:	netgear	model:	wndr4500v3	scope:	lt	version:	1.0.0.50	Trust: 0.6

sources: CNVD: CNVD-2020-28248 // JVNDB: JVNDB-2018-016373 // NVD: CVE-2018-21188

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21188
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2018-21188
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016373
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-28248
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-2254
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2018-21188
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2018-21188
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:	5.1
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
NVD:	JVNDB-2018-016373
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: 0.8
CNVD:	CNVD-2020-28248
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:	5.1
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2018-21188
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
cve@mitre.org:	CVE-2018-21188
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
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.9
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2018-016373
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: 0.8

sources: CNVD: CNVD-2020-28248 // VULMON: CVE-2018-21188 // JVNDB: JVNDB-2018-016373 // CNNVD: CNNVD-202004-2254 // NVD: CVE-2018-21188 // NVD: CVE-2018-21188

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2018-016373 // NVD: CVE-2018-21188

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-2254

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2254

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016373

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on Some Routers and Gateways, PSV-2017-2607	url:	https://kb.netgear.com/000055169/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2607	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-28248)	url:	https://www.cnvd.org.cn/patchInfo/show/217461	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117346	Trust: 0.6

sources: CNVD: CNVD-2020-28248 // JVNDB: JVNDB-2018-016373 // CNNVD: CNNVD-202004-2254

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21188	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-016373	Trust: 0.8
db:	CNVD	id:	CNVD-2020-28248	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2254	Trust: 0.6
db:	VULMON	id:	CVE-2018-21188	Trust: 0.1

sources: CNVD: CNVD-2020-28248 // VULMON: CVE-2018-21188 // JVNDB: JVNDB-2018-016373 // CNNVD: CNNVD-202004-2254 // NVD: CVE-2018-21188

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21188	Trust: 2.0
url:	https://kb.netgear.com/000055169/security-advisory-for-post-authentication-stack-overflow-on-some-routers-and-gateways-psv-2017-2607	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21188	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/787.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2020-28248 // VULMON: CVE-2018-21188 // JVNDB: JVNDB-2018-016373 // CNNVD: CNNVD-202004-2254 // NVD: CVE-2018-21188

SOURCES

db:	CNVD	id:	CNVD-2020-28248
db:	VULMON	id:	CVE-2018-21188
db:	JVNDB	id:	JVNDB-2018-016373
db:	CNNVD	id:	CNNVD-202004-2254
db:	NVD	id:	CVE-2018-21188

LAST UPDATE DATE

2024-11-23T23:11:26.663000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-28248	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21188	date:	2020-05-05T00:00:00
db:	JVNDB	id:	JVNDB-2018-016373	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2254	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21188	date:	2024-11-21T04:03:07.670

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-28248	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21188	date:	2020-04-28T00:00:00
db:	JVNDB	id:	JVNDB-2018-016373	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2254	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21188	date:	2020-04-28T15:15:12.487