Details of VAR-202004-1650

ID

VAR-202004-1650

CVE

CVE-2018-21163

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016417

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200Bv4 before 1.0.0.102, DGN2200v4 before 1.0.0.102, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.22, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.38, EX6200 before 1.0.3.86, EX7000 before 1.0.0.64, R6300v2 before 1.0.4.22, R6900P before 1.3.0.18, R7000P before 1.3.0.18, R7300DST before 1.0.0.62, R7900P before 1.3.0.10, R8000 before 1.0.4.12, R8000P before 1.3.0.10, WN2500RPv2 before 1.0.1.52, and WNDR3400v3 before 1.0.1.18. 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 EX7000 etc. are all products of NETGEAR company. NETGEAR EX7000 is a wireless network signal extender. NETGEAR DGN2200 is a wireless router. NETGEAR EX3700 is a wireless network signal extender. The vulnerability stems from the fact that when the network system or product performs operations on the memory, the data boundary is not correctly verified, resulting in incorrect read and write operations to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow

Trust: 2.16

sources: NVD: CVE-2018-21163 // JVNDB: JVNDB-2018-016417 // CNVD: CNVD-2021-50929

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-50929

AFFECTED PRODUCTS

vendor:	netgear	model:	ex3700	scope:	lt	version:	1.0.0.70	Trust: 1.6
vendor:	netgear	model:	ex3800	scope:	lt	version:	1.0.0.70	Trust: 1.6
vendor:	netgear	model:	ex6000	scope:	lt	version:	1.0.0.30	Trust: 1.6
vendor:	netgear	model:	ex6100	scope:	lt	version:	1.0.2.22	Trust: 1.6
vendor:	netgear	model:	ex6120	scope:	lt	version:	1.0.0.40	Trust: 1.6
vendor:	netgear	model:	ex6130	scope:	lt	version:	1.0.0.22	Trust: 1.6
vendor:	netgear	model:	ex6150	scope:	lt	version:	1.0.0.38	Trust: 1.6
vendor:	netgear	model:	ex6200	scope:	lt	version:	1.0.3.86	Trust: 1.6
vendor:	netgear	model:	ex7000	scope:	lt	version:	1.0.0.64	Trust: 1.6
vendor:	netgear	model:	r6900p	scope:	lt	version:	1.3.0.18	Trust: 1.6
vendor:	netgear	model:	r7000p	scope:	lt	version:	1.3.0.18	Trust: 1.6
vendor:	netgear	model:	r7300dst	scope:	lt	version:	1.0.0.62	Trust: 1.6
vendor:	netgear	model:	r7900p	scope:	lt	version:	1.3.0.10	Trust: 1.6
vendor:	netgear	model:	r8000	scope:	lt	version:	1.0.4.12	Trust: 1.6
vendor:	netgear	model:	r8000p	scope:	lt	version:	1.3.0.10	Trust: 1.6
vendor:	netgear	model:	wndr3400	scope:	lt	version:	1.0.1.18	Trust: 1.0
vendor:	netgear	model:	dgn2200b	scope:	lt	version:	1.0.0.102	Trust: 1.0
vendor:	netgear	model:	wn2500rp	scope:	lt	version:	1.0.1.52	Trust: 1.0
vendor:	netgear	model:	dgn2200	scope:	lt	version:	1.0.0.102	Trust: 1.0
vendor:	netgear	model:	r6300	scope:	lt	version:	1.0.4.22	Trust: 1.0
vendor:	netgear	model:	dgn2200	scope:	eq	version:	1.0.0.102	Trust: 0.8
vendor:	netgear	model:	dgn2200b	scope:	eq	version:	1.0.0.102	Trust: 0.8
vendor:	netgear	model:	ex3700	scope:	eq	version:	1.0.0.70	Trust: 0.8
vendor:	netgear	model:	ex3800	scope:	eq	version:	1.0.0.70	Trust: 0.8
vendor:	netgear	model:	ex6000	scope:	eq	version:	1.0.0.30	Trust: 0.8
vendor:	netgear	model:	ex6100	scope:	eq	version:	1.0.2.22	Trust: 0.8
vendor:	netgear	model:	ex6120	scope:	eq	version:	1.0.0.40	Trust: 0.8
vendor:	netgear	model:	ex6130	scope:	eq	version:	1.0.0.22	Trust: 0.8
vendor:	netgear	model:	ex6150	scope:	eq	version:	1.0.0.38	Trust: 0.8
vendor:	netgear	model:	ex6200	scope:	eq	version:	1.0.3.86	Trust: 0.8
vendor:	netgear	model:	dgn2200bv4	scope:	lt	version:	1.0.0.102	Trust: 0.6
vendor:	netgear	model:	dgn2200v4	scope:	lt	version:	1.0.0.102	Trust: 0.6
vendor:	netgear	model:	r6300v2	scope:	lt	version:	1.0.4.22	Trust: 0.6
vendor:	netgear	model:	wn2500rpv2	scope:	lt	version:	1.0.1.52	Trust: 0.6
vendor:	netgear	model:	wndr3400v3	scope:	lt	version:	1.0.1.18	Trust: 0.6

sources: CNVD: CNVD-2021-50929 // JVNDB: JVNDB-2018-016417 // NVD: CVE-2018-21163

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21163
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2018-21163
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016417
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-50929
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-2036
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2018-21163
severity:	MEDIUM
baseScore:	6.5
vectorString:	AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	8.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
NVD:	JVNDB-2018-016417
severity:	MEDIUM
baseScore:	6.5
vectorString:	AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector:	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-2021-50929
severity:	MEDIUM
baseScore:	6.5
vectorString:	AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	8.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2018-21163
baseSeverity:	HIGH
baseScore:	7.2
vectorString:	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	1.2
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2018-21163
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-2018-016417
baseSeverity:	HIGH
baseScore:	7.2
vectorString:	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	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-2021-50929 // JVNDB: JVNDB-2018-016417 // CNNVD: CNNVD-202004-2036 // NVD: CVE-2018-21163 // NVD: CVE-2018-21163

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2018-016417 // NVD: CVE-2018-21163

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202004-2036

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2036

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016417

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on Some Routers, Gateways, and Extenders, PSV-2017-0308	url:	https://kb.netgear.com/000055196/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-0308	Trust: 0.8
title:	Patch for Buffer overflow vulnerabilities in multiple NETGEAR products (CNVD-2021-50929)	url:	https://www.cnvd.org.cn/patchInfo/show/279131	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=116791	Trust: 0.6

sources: CNVD: CNVD-2021-50929 // JVNDB: JVNDB-2018-016417 // CNNVD: CNNVD-202004-2036

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21163	Trust: 3.0
db:	JVNDB	id:	JVNDB-2018-016417	Trust: 0.8
db:	CNVD	id:	CNVD-2021-50929	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2036	Trust: 0.6

sources: CNVD: CNVD-2021-50929 // JVNDB: JVNDB-2018-016417 // CNNVD: CNNVD-202004-2036 // NVD: CVE-2018-21163

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21163	Trust: 2.0
url:	https://kb.netgear.com/000055196/security-advisory-for-post-authentication-stack-overflow-on-some-routers-gateways-and-extenders-psv-2017-0308	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21163	Trust: 0.8

sources: CNVD: CNVD-2021-50929 // JVNDB: JVNDB-2018-016417 // CNNVD: CNNVD-202004-2036 // NVD: CVE-2018-21163

SOURCES

db:	CNVD	id:	CNVD-2021-50929
db:	JVNDB	id:	JVNDB-2018-016417
db:	CNNVD	id:	CNNVD-202004-2036
db:	NVD	id:	CVE-2018-21163

LAST UPDATE DATE

2024-11-23T22:05:39.992000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-50929	date:	2021-07-15T00:00:00
db:	JVNDB	id:	JVNDB-2018-016417	date:	2020-06-03T00:00:00
db:	CNNVD	id:	CNNVD-202004-2036	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21163	date:	2024-11-21T04:03:03.427

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-50929	date:	2020-07-15T00:00:00
db:	JVNDB	id:	JVNDB-2018-016417	date:	2020-06-03T00:00:00
db:	CNNVD	id:	CNNVD-202004-2036	date:	2020-04-23T00:00:00
db:	NVD	id:	CVE-2018-21163	date:	2020-04-23T21:15:11.940