Details of VAR-202209-1991

ID

VAR-202209-1991

CVE

CVE-2022-40854

TITLE

Shenzhen Tenda Technology Co.,Ltd. of AC18 Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2022-017872

DESCRIPTION

Tenda AC18 router contained a stack overflow vulnerability in /goform/fast_setting_wifi_set. Shenzhen Tenda Technology Co.,Ltd. of AC18 An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. The vulnerability is caused by the fact that the fast_setting_wifi_set function does not check the size of the input data. Attackers can exploit the vulnerability to cause remote code execution or denial of service

Trust: 2.16

sources: NVD: CVE-2022-40854 // JVNDB: JVNDB-2022-017872 // CNVD: CNVD-2022-88201

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-88201

AFFECTED PRODUCTS

vendor:	tenda	model:	ac18	scope:	eq	version:	15.03.05.19\(6318\)	Trust: 1.0
vendor:	tenda	model:	ac18	scope:	eq	version:	ac18 firmware 15.03.05.19(6318)	Trust: 0.8
vendor:	tenda	model:	ac18	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	ac18	scope:	eq	version:	-	Trust: 0.8
vendor:	tenda	model:	ac18	scope:	eq	version:	v15.03.05.19	Trust: 0.6

sources: CNVD: CNVD-2022-88201 // JVNDB: JVNDB-2022-017872 // NVD: CVE-2022-40854

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2022-40854
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2022-40854
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2022-88201
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202209-2373
value:	CRITICAL
Trust: 0.6

CNVD:	CNVD-2022-88201
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2022-40854
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
NVD:	CVE-2022-40854
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: CNVD: CNVD-2022-88201 // JVNDB: JVNDB-2022-017872 // CNNVD: CNNVD-202209-2373 // NVD: CVE-2022-40854

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2022-017872 // NVD: CVE-2022-40854

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202209-2373

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202209-2373

PATCH

title:	Patch for Tenda AC18 fast_setting_wifi_set stack overflow vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/372601	Trust: 0.6
title:	Tenda AC18 Buffer error vulnerability fix	url:	http://123.124.177.30/web/xxk/bdxqById.tag?id=209424	Trust: 0.6

sources: CNVD: CNVD-2022-88201 // CNNVD: CNNVD-202209-2373

EXTERNAL IDS

db:	NVD	id:	CVE-2022-40854	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-017872	Trust: 0.8
db:	CNVD	id:	CNVD-2022-88201	Trust: 0.6
db:	CNNVD	id:	CNNVD-202209-2373	Trust: 0.6

sources: CNVD: CNVD-2022-88201 // JVNDB: JVNDB-2022-017872 // CNNVD: CNNVD-202209-2373 // NVD: CVE-2022-40854

REFERENCES

url:	https://github.com/cpseek/router-vuls/blob/main/tenda/ac18/form_fast_setting_wifi_set.md	Trust: 3.0
url:	https://nvd.nist.gov/vuln/detail/cve-2022-40854	Trust: 0.8
url:	https://cxsecurity.com/cveshow/cve-2022-40854/	Trust: 0.6

sources: CNVD: CNVD-2022-88201 // JVNDB: JVNDB-2022-017872 // CNNVD: CNNVD-202209-2373 // NVD: CVE-2022-40854

SOURCES

db:	CNVD	id:	CNVD-2022-88201
db:	JVNDB	id:	JVNDB-2022-017872
db:	CNNVD	id:	CNNVD-202209-2373
db:	NVD	id:	CVE-2022-40854

LAST UPDATE DATE

2024-08-14T15:06:07.370000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-88201	date:	2022-12-18T00:00:00
db:	JVNDB	id:	JVNDB-2022-017872	date:	2023-10-17T08:03:00
db:	CNNVD	id:	CNNVD-202209-2373	date:	2022-09-29T00:00:00
db:	NVD	id:	CVE-2022-40854	date:	2022-09-28T14:04:22.177

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-88201	date:	2022-12-17T00:00:00
db:	JVNDB	id:	JVNDB-2022-017872	date:	2023-10-17T00:00:00
db:	CNNVD	id:	CNNVD-202209-2373	date:	2022-09-23T00:00:00
db:	NVD	id:	CVE-2022-40854	date:	2022-09-23T15:15:14.417