Details of VAR-202202-0677

ID

VAR-202202-0677

CVE

CVE-2021-45996

TITLE

Tenda router G1 and G3 Out-of-bounds write vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2022-004671

DESCRIPTION

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetPortMapping. This vulnerability allows attackers to cause a Denial of Service (DoS) via the portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal, and portMappingExternal parameters

Trust: 2.16

sources: NVD: CVE-2021-45996 // JVNDB: JVNDB-2022-004671 // CNVD: CNVD-2022-16167

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-16167

AFFECTED PRODUCTS

vendor:	tendacn	model:	g1	scope:	eq	version:	15.11.0.17\(9502\)_cn	Trust: 1.0
vendor:	tendacn	model:	g3	scope:	eq	version:	15.11.0.17\(9502\)_cn	Trust: 1.0
vendor:	tenda	model:	g3	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	g1	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	g1 and g3 15.11.0.17 cn	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2022-16167 // JVNDB: JVNDB-2022-004671 // NVD: CVE-2021-45996

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-45996
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-45996
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2022-16167
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202202-269
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2021-45996
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2022-16167
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-45996
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-2021-45996
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-2022-16167 // JVNDB: JVNDB-2022-004671 // CNNVD: CNNVD-202202-269 // NVD: CVE-2021-45996

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2022-004671 // NVD: CVE-2021-45996

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-269

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202202-269

PATCH

title:

Top Page

url:

https://www.tenda.com.cn/default.html

Trust: 0.8

sources: JVNDB: JVNDB-2022-004671

EXTERNAL IDS

db:	NVD	id:	CVE-2021-45996	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-004671	Trust: 0.8
db:	CNVD	id:	CNVD-2022-16167	Trust: 0.6
db:	CNNVD	id:	CNNVD-202202-269	Trust: 0.6

sources: CNVD: CNVD-2022-16167 // JVNDB: JVNDB-2022-004671 // CNNVD: CNNVD-202202-269 // NVD: CVE-2021-45996

REFERENCES

url:	https://github.com/pjqwudi/my_vuln/tree/main/tenda/vuln_8	Trust: 2.2
url:	https://nvd.nist.gov/vuln/detail/cve-2021-45996	Trust: 1.4

sources: CNVD: CNVD-2022-16167 // JVNDB: JVNDB-2022-004671 // CNNVD: CNNVD-202202-269 // NVD: CVE-2021-45996

SOURCES

db:	CNVD	id:	CNVD-2022-16167
db:	JVNDB	id:	JVNDB-2022-004671
db:	CNNVD	id:	CNNVD-202202-269
db:	NVD	id:	CVE-2021-45996

LAST UPDATE DATE

2024-11-23T22:20:39.252000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-16167	date:	2022-03-03T00:00:00
db:	JVNDB	id:	JVNDB-2022-004671	date:	2023-04-27T07:55:00
db:	CNNVD	id:	CNNVD-202202-269	date:	2022-02-15T00:00:00
db:	NVD	id:	CVE-2021-45996	date:	2024-11-21T06:33:27.347

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-16167	date:	2022-03-02T00:00:00
db:	JVNDB	id:	JVNDB-2022-004671	date:	2023-04-27T00:00:00
db:	CNNVD	id:	CNNVD-202202-269	date:	2022-02-04T00:00:00
db:	NVD	id:	CVE-2021-45996	date:	2022-02-04T02:15:08.990