Details of VAR-202202-1043

ID

VAR-202202-1043

CVE

CVE-2021-45391

TITLE

Tenda router AX12 Out-of-bounds write vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2022-004897

DESCRIPTION

A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service. Tenda router AX12 Exists in an out-of-bounds write vulnerability.Service operation interruption (DoS) It may be in a state. Tenda Ax12 is a dual-band Gigabit Wifi 6 wireless router from the Chinese company Tenda. An attacker could exploit this vulnerability to cause a denial of service

Trust: 2.16

sources: NVD: CVE-2021-45391 // JVNDB: JVNDB-2022-004897 // CNVD: CNVD-2022-22753

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-22753

AFFECTED PRODUCTS

vendor:	tenda	model:	ax12	scope:	eq	version:	22.03.01.21_cn	Trust: 1.0
vendor:	tenda	model:	ax12	scope:	eq	version:	-	Trust: 0.8
vendor:	tenda	model:	ax12	scope:	eq	version:	ax12 firmware 22.03.01.21_cn	Trust: 0.8
vendor:	tenda	model:	ax12 v22.03.01.21 cn	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2022-22753 // JVNDB: JVNDB-2022-004897 // NVD: CVE-2021-45391

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-45391
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-45391
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2022-22753
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202202-1325
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2021-45391
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2022-22753
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-45391
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2021-45391
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2022-22753 // JVNDB: JVNDB-2022-004897 // CNNVD: CNNVD-202202-1325 // NVD: CVE-2021-45391

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2022-004897 // NVD: CVE-2021-45391

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-1325

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202202-1325

PATCH

title:	Top Page Tenda	url:	https://www.tenda.com.cn/default.html	Trust: 0.8
title:	Patch for Tenda AX12 Buffer Overflow Vulnerability (CNVD-2022-22753)	url:	https://www.cnvd.org.cn/patchInfo/show/327876	Trust: 0.6
title:	Tenda Ax12 Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=183457	Trust: 0.6

sources: CNVD: CNVD-2022-22753 // JVNDB: JVNDB-2022-004897 // CNNVD: CNNVD-202202-1325

EXTERNAL IDS

db:	NVD	id:	CVE-2021-45391	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-004897	Trust: 0.8
db:	CNVD	id:	CNVD-2022-22753	Trust: 0.6
db:	CNNVD	id:	CNNVD-202202-1325	Trust: 0.6

sources: CNVD: CNVD-2022-22753 // JVNDB: JVNDB-2022-004897 // CNNVD: CNNVD-202202-1325 // NVD: CVE-2021-45391

REFERENCES

url:	https://github.com/sec-bin/iot-cve/tree/main/tenda/ax12/1	Trust: 2.4
url:	https://www.tenda.com.cn/product/ax12.html	Trust: 1.6
url:	http://tendawifi.com/index.html	Trust: 1.6
url:	https://nvd.nist.gov/vuln/detail/cve-2021-45391	Trust: 1.4
url:	https://www.tenda.com.cn/	Trust: 1.0

sources: CNVD: CNVD-2022-22753 // JVNDB: JVNDB-2022-004897 // CNNVD: CNNVD-202202-1325 // NVD: CVE-2021-45391

SOURCES

db:	CNVD	id:	CNVD-2022-22753
db:	JVNDB	id:	JVNDB-2022-004897
db:	CNNVD	id:	CNNVD-202202-1325
db:	NVD	id:	CVE-2021-45391

LAST UPDATE DATE

2024-11-23T21:50:41.311000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-22753	date:	2022-03-25T00:00:00
db:	JVNDB	id:	JVNDB-2022-004897	date:	2023-05-10T09:01:00
db:	CNNVD	id:	CNNVD-202202-1325	date:	2022-02-24T00:00:00
db:	NVD	id:	CVE-2021-45391	date:	2024-11-21T06:32:09.320

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-22753	date:	2022-03-25T00:00:00
db:	JVNDB	id:	JVNDB-2022-004897	date:	2023-05-10T00:00:00
db:	CNNVD	id:	CNNVD-202202-1325	date:	2022-02-16T00:00:00
db:	NVD	id:	CVE-2021-45391	date:	2022-02-16T14:15:07.627