Details of VAR-202112-2421

ID

VAR-202112-2421

CVE

CVE-2021-45527

TITLE

plural NETGEAR Classic buffer overflow vulnerability in device

Trust: 0.8

sources: JVNDB: JVNDB-2021-017285

DESCRIPTION

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.54, EX7000 before 1.0.1.94, EX7500 before 1.0.0.72, R6250 before 1.0.4.48, R6300v2 before 1.0.4.52, R6400 before 1.0.1.70, R6400v2 before 1.0.4.102, R6700v3 before 1.0.4.102, R7000 before 1.0.11.116, R7100LG before 1.0.0.64, R7850 before 1.0.5.68, R7900 before 1.0.4.30, R7960P before 1.4.1.68, R8000 before 1.0.4.52, RAX200 before 1.0.2.88, RBS40V before 2.6.2.4, RS400 before 1.5.1.80, XR300 before 1.0.3.56, R7000P before 1.3.2.124, R8000P before 1.4.1.68, R8500 before 1.0.2.144, RAX80 before 1.0.3.102, R6900P before 1.3.2.124, R7900P before 1.4.1.68, R8300 before 1.0.2.144, RAX75 before 1.0.3.102, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12. 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 in a state. This affects D6220 prior to 1.0.0.68, D6400 prior to 1.0.0.102, D7000v2 prior to 1.0.0.66, D8500 prior to 1.0.3.58, DC112A prior to 1.0.0.54, EX7000 prior to 1.0.1.94, EX7500 prior to 1.0.0.72, R6250 prior to 1.0.4.48, R6300v2 prior to 1.0.4.52, R6400 prior to 1.0.1.70, R6400v2 prior to 1.0.4.102, R6700v3 prior to 1.0.4.102, R7000 prior to 1.0.11.116, R7100LG prior to 1.0.0.64, R7850 prior to 1.0.5.68, R7900 prior to 1.0.4.30, R7960P prior to 1.4.1.68, R8000 prior to 1.0.4.52, RAX200 prior to 1.0.2.88, RBS40V prior to 2.6.2.4, RS400 prior to 1.5.1.80, XR300 prior to 1.0.3.56, R7000P prior to 1.3.2.124, R8000P prior to 1.4.1.68, R8500 prior to 1.0.2.144, RAX80 prior to 1.0.3.102, R6900P prior to 1.3.2.124, R7900P prior to 1.4.1.68, R8300 prior to 1.0.2.144, RAX75 prior to 1.0.3.102, RBR750 prior to 3.2.17.12, RBR850 prior to 3.2.17.12, RBS750 prior to 3.2.17.12, RBS850 prior to 3.2.17.12, RBK752 prior to 3.2.17.12, and RBK852 prior to 3.2.17.12

Trust: 1.71

sources: NVD: CVE-2021-45527 // JVNDB: JVNDB-2021-017285 // VULMON: CVE-2021-45527

AFFECTED PRODUCTS

vendor:	netgear	model:	rbr750	scope:	lt	version:	3.2.17.12	Trust: 1.0
vendor:	netgear	model:	r8000	scope:	lt	version:	1.0.4.52	Trust: 1.0
vendor:	netgear	model:	r6900p	scope:	lt	version:	1.3.2.124	Trust: 1.0
vendor:	netgear	model:	r6400	scope:	lt	version:	1.0.1.70	Trust: 1.0
vendor:	netgear	model:	rbs850	scope:	lt	version:	3.2.17.12	Trust: 1.0
vendor:	netgear	model:	dc112a	scope:	lt	version:	1.0.0.54	Trust: 1.0
vendor:	netgear	model:	rbs40v	scope:	lt	version:	2.6.2.4	Trust: 1.0
vendor:	netgear	model:	r7100lg	scope:	lt	version:	1.0.0.64	Trust: 1.0
vendor:	netgear	model:	rbk752	scope:	lt	version:	3.2.17.12	Trust: 1.0
vendor:	netgear	model:	r8300	scope:	lt	version:	1.0.2.144	Trust: 1.0
vendor:	netgear	model:	r8000p	scope:	lt	version:	1.4.1.68	Trust: 1.0
vendor:	netgear	model:	ex7000	scope:	lt	version:	1.0.1.94	Trust: 1.0
vendor:	netgear	model:	rbk852	scope:	lt	version:	3.2.17.12	Trust: 1.0
vendor:	netgear	model:	r7000p	scope:	lt	version:	1.3.2.124	Trust: 1.0
vendor:	netgear	model:	d7000v2	scope:	lt	version:	1.0.0.66	Trust: 1.0
vendor:	netgear	model:	rbr850	scope:	lt	version:	3.2.17.12	Trust: 1.0
vendor:	netgear	model:	ex7500	scope:	lt	version:	1.0.0.72	Trust: 1.0
vendor:	netgear	model:	r7000	scope:	lt	version:	1.0.11.116	Trust: 1.0
vendor:	netgear	model:	r7850	scope:	lt	version:	1.0.5.68	Trust: 1.0
vendor:	netgear	model:	xr300	scope:	lt	version:	1.0.3.56	Trust: 1.0
vendor:	netgear	model:	r8500	scope:	lt	version:	1.0.2.144	Trust: 1.0
vendor:	netgear	model:	r6300v2	scope:	lt	version:	1.0.4.52	Trust: 1.0
vendor:	netgear	model:	r7900p	scope:	lt	version:	1.4.1.68	Trust: 1.0
vendor:	netgear	model:	d6220	scope:	lt	version:	1.0.0.68	Trust: 1.0
vendor:	netgear	model:	rax80	scope:	lt	version:	1.0.3.102	Trust: 1.0
vendor:	netgear	model:	rs400	scope:	lt	version:	1.5.1.80	Trust: 1.0
vendor:	netgear	model:	r6250	scope:	lt	version:	1.0.4.48	Trust: 1.0
vendor:	netgear	model:	d6400	scope:	lt	version:	1.0.0.102	Trust: 1.0
vendor:	netgear	model:	r7900	scope:	lt	version:	1.0.4.30	Trust: 1.0
vendor:	netgear	model:	r7960p	scope:	lt	version:	1.4.1.68	Trust: 1.0
vendor:	netgear	model:	rax75	scope:	lt	version:	1.0.3.102	Trust: 1.0
vendor:	netgear	model:	d8500	scope:	lt	version:	1.0.3.58	Trust: 1.0
vendor:	netgear	model:	rbs750	scope:	lt	version:	3.2.17.12	Trust: 1.0
vendor:	netgear	model:	rax200	scope:	lt	version:	1.0.2.88	Trust: 1.0
vendor:	netgear	model:	r6400v2	scope:	lt	version:	1.0.4.102	Trust: 1.0
vendor:	netgear	model:	r6700v3	scope:	lt	version:	1.0.4.102	Trust: 1.0
vendor:	ネットギア	model:	d6400	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	d8500	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	rbs850	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	d6220	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	rbr850	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	rbs750	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	rbk752	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	d7000v2	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	rbr750	scope:	-	version:	-	Trust: 0.8
vendor:	ネットギア	model:	rbk852	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-017285 // NVD: CVE-2021-45527

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-45527
value:	CRITICAL
Trust: 1.0
cve@mitre.org:	CVE-2021-45527
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2021-45527
value:	CRITICAL
Trust: 0.8
CNNVD:	CNNVD-202112-2341
value:	CRITICAL
Trust: 0.6

nvd@nist.gov:	CVE-2021-45527
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: 1.8

nvd@nist.gov:	CVE-2021-45527
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2021-45527
baseSeverity:	CRITICAL
baseScore:	9.6
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	6.0
version:	3.1
Trust: 1.0
NVD:	CVE-2021-45527
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	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: JVNDB: JVNDB-2021-017285 // CNNVD: CNNVD-202112-2341 // NVD: CVE-2021-45527 // NVD: CVE-2021-45527

PROBLEMTYPE DATA

problemtype:	CWE-120	Trust: 1.0
problemtype:	Classic buffer overflow (CWE-120) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-017285 // NVD: CVE-2021-45527

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202112-2341

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202112-2341

PATCH

title:	Security Advisory for Post-Authentication Buffer Overflow on Some Routers, Extenders, and WiFi Systems, PSV-2020-0437	url:	https://kb.netgear.com/000064493/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-Extenders-and-WiFi-Systems-PSV-2020-0437	Trust: 0.8
title:	Netgear RBR750 and NETGEAR Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=177093	Trust: 0.6

sources: JVNDB: JVNDB-2021-017285 // CNNVD: CNNVD-202112-2341

EXTERNAL IDS

db:	NVD	id:	CVE-2021-45527	Trust: 3.3
db:	JVNDB	id:	JVNDB-2021-017285	Trust: 0.8
db:	CNNVD	id:	CNNVD-202112-2341	Trust: 0.6
db:	VULMON	id:	CVE-2021-45527	Trust: 0.1

sources: VULMON: CVE-2021-45527 // JVNDB: JVNDB-2021-017285 // CNNVD: CNNVD-202112-2341 // NVD: CVE-2021-45527

REFERENCES

url:	https://kb.netgear.com/000064493/security-advisory-for-post-authentication-buffer-overflow-on-some-routers-extenders-and-wifi-systems-psv-2020-0437	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-45527	Trust: 1.4
url:	https://nvd.nist.gov	Trust: 0.1

sources: VULMON: CVE-2021-45527 // JVNDB: JVNDB-2021-017285 // CNNVD: CNNVD-202112-2341 // NVD: CVE-2021-45527

SOURCES

db:	VULMON	id:	CVE-2021-45527
db:	JVNDB	id:	JVNDB-2021-017285
db:	CNNVD	id:	CNNVD-202112-2341
db:	NVD	id:	CVE-2021-45527

LAST UPDATE DATE

2024-11-23T22:40:38.015000+00:00

SOURCES UPDATE DATE

db:	VULMON	id:	CVE-2021-45527	date:	2021-12-27T00:00:00
db:	JVNDB	id:	JVNDB-2021-017285	date:	2023-01-13T05:03:00
db:	CNNVD	id:	CNNVD-202112-2341	date:	2022-01-11T00:00:00
db:	NVD	id:	CVE-2021-45527	date:	2024-11-21T06:32:25.610

SOURCES RELEASE DATE

db:	VULMON	id:	CVE-2021-45527	date:	2021-12-26T00:00:00
db:	JVNDB	id:	JVNDB-2021-017285	date:	2023-01-13T00:00:00
db:	CNNVD	id:	CNNVD-202112-2341	date:	2021-12-26T00:00:00
db:	NVD	id:	CVE-2021-45527	date:	2021-12-26T01:15:14.207