Details of VAR-202004-1661

ID

VAR-202004-1661

CVE

CVE-2018-21215

TITLE

plural NETGEAR Classic buffer overflow vulnerability in the product

Trust: 0.8

sources: JVNDB: JVNDB-2018-016356

DESCRIPTION

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, D6100 before 1.0.0.56, EX2700 before 1.0.1.28, R7500v2 before 1.0.3.24, R9000 before 1.0.2.52, WN2000RPTv3 before 1.0.1.20, WN3000RPv3 before 1.0.2.50, and WN3100RPv2 before 1.0.0.56. plural NETGEAR The product contains a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR D3600, etc. are all products of NETGEAR. NETGEAR D3600 is a wireless modem. NETGEAR R7500 is a wireless router. NETGEAR D6100 is a wireless modem. 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. This affects D3600 prior to 1.0.0.67, D6000 prior to 1.0.0.67, D6100 prior to 1.0.0.56, EX2700 prior to 1.0.1.28, R7500v2 prior to 1.0.3.24, R9000 prior to 1.0.2.52, WN2000RPTv3 prior to 1.0.1.20, WN3000RPv3 prior to 1.0.2.50, and WN3100RPv2 prior to 1.0.0.56

Trust: 2.25

sources: NVD: CVE-2018-21215 // JVNDB: JVNDB-2018-016356 // CNVD: CNVD-2021-46567 // VULMON: CVE-2018-21215

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-46567

AFFECTED PRODUCTS

vendor:	netgear	model:	r9000	scope:	lt	version:	1.0.2.52	Trust: 1.6
vendor:	netgear	model:	ex2700	scope:	lt	version:	1.0.1.28	Trust: 1.6
vendor:	netgear	model:	d3600	scope:	lt	version:	1.0.0.67	Trust: 1.6
vendor:	netgear	model:	d6000	scope:	lt	version:	1.0.0.67	Trust: 1.6
vendor:	netgear	model:	d6100	scope:	lt	version:	1.0.0.56	Trust: 1.6
vendor:	netgear	model:	wn3100rp	scope:	lt	version:	1.0.0.56	Trust: 1.0
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.3.24	Trust: 1.0
vendor:	netgear	model:	wn3000rp	scope:	lt	version:	1.0.2.50	Trust: 1.0
vendor:	netgear	model:	wn2000rpt	scope:	lt	version:	1.0.1.20	Trust: 1.0
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.67	Trust: 0.8
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.67	Trust: 0.8
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.56	Trust: 0.8
vendor:	netgear	model:	ex2700	scope:	eq	version:	1.0.1.28	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.24	Trust: 0.8
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.52	Trust: 0.8
vendor:	netgear	model:	wn2000rpt	scope:	eq	version:	1.0.1.20	Trust: 0.8
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.2.50	Trust: 0.8
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.56	Trust: 0.8
vendor:	netgear	model:	wn3000rpv3	scope:	lt	version:	1.0.2.50	Trust: 0.6
vendor:	netgear	model:	r7500v2	scope:	lt	version:	1.0.3.24	Trust: 0.6
vendor:	netgear	model:	wn2000rptv3	scope:	lt	version:	1.0.1.20	Trust: 0.6
vendor:	netgear	model:	wn3100rpv2	scope:	lt	version:	1.0.0.56	Trust: 0.6
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.49	Trust: 0.2
vendor:	netgear	model:	d3600	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.61	Trust: 0.1
vendor:	netgear	model:	d6000	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.49	Trust: 0.1
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.61	Trust: 0.1
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.50 0.0.50	Trust: 0.1
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.55	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.108	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.110	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.112	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.116	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.118	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.122	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.124	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.130	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.10	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.16	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.20	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.4	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.30	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.40	Trust: 0.1
vendor:	netgear	model:	wn2000rpt	scope:	eq	version:	1.0.1.8	Trust: 0.1
vendor:	netgear	model:	wn2000rpt	scope:	eq	version:	1.0.1.14	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.0.52	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.0.56	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.0.68	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.2.44	Trust: 0.1
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.20	Trust: 0.1
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.40	Trust: 0.1
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.42	Trust: 0.1

sources: CNVD: CNVD-2021-46567 // VULMON: CVE-2018-21215 // JVNDB: JVNDB-2018-016356 // NVD: CVE-2018-21215

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21215
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2018-21215
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2018-016356
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-46567
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-2290
value:	HIGH
Trust: 0.6
VULMON:	CVE-2018-21215
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2018-21215
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: 1.1
NVD:	JVNDB-2018-016356
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-2021-46567
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-2018-21215
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-2018-21215
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-2018-016356
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-2021-46567 // VULMON: CVE-2018-21215 // JVNDB: JVNDB-2018-016356 // CNNVD: CNNVD-202004-2290 // NVD: CVE-2018-21215 // NVD: CVE-2018-21215

PROBLEMTYPE DATA

problemtype:

CWE-120

Trust: 1.8

sources: JVNDB: JVNDB-2018-016356 // NVD: CVE-2018-21215

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-2290

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2290

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016356

PATCH

title:	Security Advisory for Pre-Authentication Buffer Overflow on Some Routers, Gateways, and Extenders, PSV-2017-2486	url:	https://kb.netgear.com/000055122/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2486	Trust: 0.8
title:	Patch for Buffer overflow vulnerabilities in multiple NETGEAR products (CNVD-2021-46567)	url:	https://www.cnvd.org.cn/patchInfo/show/276391	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117382	Trust: 0.6

sources: CNVD: CNVD-2021-46567 // JVNDB: JVNDB-2018-016356 // CNNVD: CNNVD-202004-2290

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21215	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-016356	Trust: 0.8
db:	CNVD	id:	CNVD-2021-46567	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2290	Trust: 0.6
db:	VULMON	id:	CVE-2018-21215	Trust: 0.1

sources: CNVD: CNVD-2021-46567 // VULMON: CVE-2018-21215 // JVNDB: JVNDB-2018-016356 // CNNVD: CNNVD-202004-2290 // NVD: CVE-2018-21215

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21215	Trust: 2.0
url:	https://kb.netgear.com/000055122/security-advisory-for-pre-authentication-buffer-overflow-on-some-routers-gateways-and-extenders-psv-2017-2486	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21215	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/120.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2021-46567 // VULMON: CVE-2018-21215 // JVNDB: JVNDB-2018-016356 // CNNVD: CNNVD-202004-2290 // NVD: CVE-2018-21215

SOURCES

db:	CNVD	id:	CNVD-2021-46567
db:	VULMON	id:	CVE-2018-21215
db:	JVNDB	id:	JVNDB-2018-016356
db:	CNNVD	id:	CNNVD-202004-2290
db:	NVD	id:	CVE-2018-21215

LAST UPDATE DATE

2024-11-23T22:48:01.263000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-46567	date:	2021-07-02T00:00:00
db:	VULMON	id:	CVE-2018-21215	date:	2020-05-04T00:00:00
db:	JVNDB	id:	JVNDB-2018-016356	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2290	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21215	date:	2024-11-21T04:03:11.883

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-46567	date:	2021-07-01T00:00:00
db:	VULMON	id:	CVE-2018-21215	date:	2020-04-28T00:00:00
db:	JVNDB	id:	JVNDB-2018-016356	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2290	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21215	date:	2020-04-28T16:15:14.153