Details of VAR-202004-1584

ID

VAR-202004-1584

CVE

CVE-2018-21148

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016315

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.50, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64. 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 WNDR4300 is a wireless router. The vulnerability stems from the fact that when the network system or product performs operations on the memory, it does not correctly verify the data boundary, 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-2018-21148 // JVNDB: JVNDB-2018-016315 // CNVD: CNVD-2021-67653

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-67653

AFFECTED PRODUCTS

vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.0.122	Trust: 1.6
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.2.98	Trust: 1.6
vendor:	netgear	model:	d7800	scope:	lt	version:	1.0.1.34	Trust: 1.6
vendor:	netgear	model:	r6100	scope:	lt	version:	1.0.1.22	Trust: 1.6
vendor:	netgear	model:	r7800	scope:	lt	version:	1.0.2.42	Trust: 1.6
vendor:	netgear	model:	dm200	scope:	lt	version:	1.0.0.50	Trust: 1.6
vendor:	netgear	model:	r8900	scope:	lt	version:	1.0.3.10	Trust: 1.6
vendor:	netgear	model:	r9000	scope:	lt	version:	1.0.3.10	Trust: 1.6
vendor:	netgear	model:	wndr3700	scope:	lt	version:	1.0.2.96	Trust: 1.0
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.3.26	Trust: 1.0
vendor:	netgear	model:	wnr2000	scope:	lt	version:	1.0.0.64	Trust: 1.0
vendor:	netgear	model:	wndr4500	scope:	lt	version:	1.0.0.54	Trust: 1.0
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.0.54	Trust: 1.0
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.34	Trust: 0.8
vendor:	netgear	model:	dm200	scope:	eq	version:	1.0.0.50	Trust: 0.8
vendor:	netgear	model:	r6100	scope:	eq	version:	1.0.1.22	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.122	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	v2 1.0.3.26	Trust: 0.8
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.42	Trust: 0.8
vendor:	netgear	model:	r8900	scope:	eq	version:	1.0.3.10	Trust: 0.8
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.3.10	Trust: 0.8
vendor:	netgear	model:	wndr3700	scope:	eq	version:	1.0.2.96	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.98	Trust: 0.8
vendor:	netgear	model:	r7500v2	scope:	lt	version:	1.0.3.26	Trust: 0.6
vendor:	netgear	model:	wndr4300v2	scope:	lt	version:	1.0.0.54	Trust: 0.6
vendor:	netgear	model:	wndr4500v3	scope:	lt	version:	1.0.0.54	Trust: 0.6
vendor:	netgear	model:	wnr2000v5	scope:	lt	version:	1.0.0.64	Trust: 0.6
vendor:	netgear	model:	wndr3700v4	scope:	lt	version:	1.0.2.96	Trust: 0.6

sources: CNVD: CNVD-2021-67653 // JVNDB: JVNDB-2018-016315 // NVD: CVE-2018-21148

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21148
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2018-21148
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016315
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2021-67653
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1849
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2018-21148
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: 1.0
NVD:	JVNDB-2018-016315
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-2021-67653
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-2018-21148
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-2018-21148
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-2018-016315
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-2021-67653 // JVNDB: JVNDB-2018-016315 // CNNVD: CNNVD-202004-1849 // NVD: CVE-2018-21148 // NVD: CVE-2018-21148

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2018-016315 // NVD: CVE-2018-21148

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1849

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1849

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016315

PATCH

title:	Security Advisory for Pre-Authentication Command Injection on Some Routers and Modem Routers, PSV-2018-0033	url:	https://kb.netgear.com/000059485/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Gateways-and-Routers-PSV-2017-3157	Trust: 0.8
title:	Patch for Buffer overflow vulnerabilities in multiple NETGEAR products (CNVD-2021-67653)	url:	https://www.cnvd.org.cn/patchInfo/show/289186	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117220	Trust: 0.6

sources: CNVD: CNVD-2021-67653 // JVNDB: JVNDB-2018-016315 // CNNVD: CNNVD-202004-1849

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21148	Trust: 3.0
db:	JVNDB	id:	JVNDB-2018-016315	Trust: 0.8
db:	CNVD	id:	CNVD-2021-67653	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1849	Trust: 0.6

sources: CNVD: CNVD-2021-67653 // JVNDB: JVNDB-2018-016315 // CNNVD: CNNVD-202004-1849 // NVD: CVE-2018-21148

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21148	Trust: 2.0
url:	https://kb.netgear.com/000059485/security-advisory-for-post-authentication-stack-overflow-on-some-gateways-and-routers-psv-2017-3157	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21148	Trust: 0.8

sources: CNVD: CNVD-2021-67653 // JVNDB: JVNDB-2018-016315 // CNNVD: CNNVD-202004-1849 // NVD: CVE-2018-21148

SOURCES

db:	CNVD	id:	CNVD-2021-67653
db:	JVNDB	id:	JVNDB-2018-016315
db:	CNNVD	id:	CNNVD-202004-1849
db:	NVD	id:	CVE-2018-21148

LAST UPDATE DATE

2024-11-23T22:21:12.528000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-67653	date:	2021-09-02T00:00:00
db:	JVNDB	id:	JVNDB-2018-016315	date:	2020-05-22T00:00:00
db:	CNNVD	id:	CNNVD-202004-1849	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2018-21148	date:	2024-11-21T04:03:01.090

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-67653	date:	2021-09-02T00:00:00
db:	JVNDB	id:	JVNDB-2018-016315	date:	2020-05-22T00:00:00
db:	CNNVD	id:	CNNVD-202004-1849	date:	2020-04-21T00:00:00
db:	NVD	id:	CVE-2018-21148	date:	2020-04-21T22:15:14.367