Details of VAR-202004-0897

ID

VAR-202004-0897

CVE

CVE-2019-20657

TITLE

plural NETGEAR Classic buffer overflow vulnerability in device

Trust: 0.8

sources: JVNDB: JVNDB-2019-015440

DESCRIPTION

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6200 before 1.1.00.36, D7000 before 1.0.1.74, PR2000 before 1.0.0.28, R6020 before 1.0.0.42, R6080 before 1.0.0.42, R6050 before 1.0.1.24, JR6150 before 1.0.1.24, R6120 before 1.0.0.48, R6220 before 1.1.0.86, R6230 before 1.1.0.86, R6260 before 1.1.0.64, R6700v2 before 1.2.0.62, R6800 before 1.2.0.62, R6900v2 before 1.2.0.62, and WNR2020 before 1.1.0.62. plural NETGEAR A classic buffer overflow vulnerability exists on the device.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR D6200, etc. are all products of NETGEAR. NETGEAR D6200 is a wireless modem. NETGEAR WNR2020 is a wireless router. NETGEAR PR2000 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. Attack You can use this vulnerability to cause buffer overflow or heap overflow

Trust: 2.16

sources: NVD: CVE-2019-20657 // JVNDB: JVNDB-2019-015440 // CNVD: CNVD-2020-27208

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-27208

AFFECTED PRODUCTS

vendor:	netgear	model:	pr2000	scope:	lt	version:	1.0.0.28	Trust: 1.6
vendor:	netgear	model:	r6260	scope:	lt	version:	1.1.0.64	Trust: 1.6
vendor:	netgear	model:	wnr2020	scope:	lt	version:	1.1.0.62	Trust: 1.6
vendor:	netgear	model:	d6200	scope:	lt	version:	1.1.00.36	Trust: 1.6
vendor:	netgear	model:	d7000	scope:	lt	version:	1.0.1.74	Trust: 1.6
vendor:	netgear	model:	r6020	scope:	lt	version:	1.0.0.42	Trust: 1.6
vendor:	netgear	model:	r6080	scope:	lt	version:	1.0.0.42	Trust: 1.6
vendor:	netgear	model:	r6050	scope:	lt	version:	1.0.1.24	Trust: 1.6
vendor:	netgear	model:	jr6150	scope:	lt	version:	1.0.1.24	Trust: 1.6
vendor:	netgear	model:	r6120	scope:	lt	version:	1.0.0.48	Trust: 1.6
vendor:	netgear	model:	r6220	scope:	lt	version:	1.1.0.86	Trust: 1.6
vendor:	netgear	model:	r6230	scope:	lt	version:	1.1.0.86	Trust: 1.6
vendor:	netgear	model:	r6800	scope:	lt	version:	1.2.0.62	Trust: 1.6
vendor:	netgear	model:	r6700	scope:	lt	version:	1.2.0.62	Trust: 1.0
vendor:	netgear	model:	r6900	scope:	lt	version:	1.2.0.62	Trust: 1.0
vendor:	netgear	model:	d6200	scope:	eq	version:	1.1.00.36	Trust: 0.8
vendor:	netgear	model:	d7000	scope:	eq	version:	1.0.1.74	Trust: 0.8
vendor:	netgear	model:	jr6150	scope:	eq	version:	1.0.0.24	Trust: 0.8
vendor:	netgear	model:	pr2000	scope:	eq	version:	1.0.0.28	Trust: 0.8
vendor:	netgear	model:	r6020	scope:	eq	version:	1.0.0.42	Trust: 0.8
vendor:	netgear	model:	r6050	scope:	eq	version:	1.0.0.24	Trust: 0.8
vendor:	netgear	model:	r6080	scope:	eq	version:	1.0.0.42	Trust: 0.8
vendor:	netgear	model:	r6120	scope:	eq	version:	1.0.0.48	Trust: 0.8
vendor:	netgear	model:	r6220	scope:	eq	version:	1.1.0.86	Trust: 0.8
vendor:	netgear	model:	r6230	scope:	eq	version:	1.1.0.86	Trust: 0.8
vendor:	netgear	model:	r6700v2	scope:	lt	version:	1.2.0.62	Trust: 0.6
vendor:	netgear	model:	r6900v2	scope:	lt	version:	1.2.0.62	Trust: 0.6

sources: CNVD: CNVD-2020-27208 // JVNDB: JVNDB-2019-015440 // NVD: CVE-2019-20657

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-20657
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2019-20657
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2019-015440
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2020-27208
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1229
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2019-20657
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-2019-015440
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-2020-27208
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-2019-20657
baseSeverity:	HIGH
baseScore:	8.0
vectorString:	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.1
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2019-20657
baseSeverity:	HIGH
baseScore:	8.0
vectorString:	CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.1
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2019-015440
baseSeverity:	HIGH
baseScore:	8.0
vectorString:	CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2020-27208 // JVNDB: JVNDB-2019-015440 // CNNVD: CNNVD-202004-1229 // NVD: CVE-2019-20657 // NVD: CVE-2019-20657

PROBLEMTYPE DATA

problemtype:

CWE-120

Trust: 1.8

sources: JVNDB: JVNDB-2019-015440 // NVD: CVE-2019-20657

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1229

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1229

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-015440

PATCH

title:	Security Advisory for Post-Authentication Buffer Overflow on Some Routers and Gateways, PSV-2018-0619	url:	https://kb.netgear.com/000061482/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0619	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-27208)	url:	https://www.cnvd.org.cn/patchInfo/show/216875	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=116528	Trust: 0.6

sources: CNVD: CNVD-2020-27208 // JVNDB: JVNDB-2019-015440 // CNNVD: CNNVD-202004-1229

EXTERNAL IDS

db:	NVD	id:	CVE-2019-20657	Trust: 3.0
db:	JVNDB	id:	JVNDB-2019-015440	Trust: 0.8
db:	CNVD	id:	CNVD-2020-27208	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1229	Trust: 0.6

sources: CNVD: CNVD-2020-27208 // JVNDB: JVNDB-2019-015440 // CNNVD: CNNVD-202004-1229 // NVD: CVE-2019-20657

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-20657	Trust: 2.0
url:	https://kb.netgear.com/000061482/security-advisory-for-post-authentication-buffer-overflow-on-some-routers-and-gateways-psv-2018-0619	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20657	Trust: 0.8

sources: CNVD: CNVD-2020-27208 // JVNDB: JVNDB-2019-015440 // CNNVD: CNNVD-202004-1229 // NVD: CVE-2019-20657

SOURCES

db:	CNVD	id:	CNVD-2020-27208
db:	JVNDB	id:	JVNDB-2019-015440
db:	CNNVD	id:	CNNVD-202004-1229
db:	NVD	id:	CVE-2019-20657

LAST UPDATE DATE

2024-11-23T21:35:54.787000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-27208	date:	2020-05-09T00:00:00
db:	JVNDB	id:	JVNDB-2019-015440	date:	2020-05-19T00:00:00
db:	CNNVD	id:	CNNVD-202004-1229	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2019-20657	date:	2024-11-21T04:38:59.227

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-27208	date:	2020-05-09T00:00:00
db:	JVNDB	id:	JVNDB-2019-015440	date:	2020-05-19T00:00:00
db:	CNNVD	id:	CNNVD-202004-1229	date:	2020-04-15T00:00:00
db:	NVD	id:	CVE-2019-20657	date:	2020-04-15T19:15:13.190