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ID

VAR-202209-1276


CVE

CVE-2022-40076


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  ac21  Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2022-017371

DESCRIPTION

Tenda AC21 V16.03.08.15 is vulnerable to Buffer Overflow via /bin/httpd, function: fromSetWifiGusetBasic. Shenzhen Tenda Technology Co.,Ltd. of ac21 An out-of-bounds write vulnerability exists in firmware.Service operation interruption (DoS) It may be in a state. The vulnerability is caused by the fact that the fromSetWifiGusetBasic function of /bin/httpd lacks a length check for the input data. Attackers can use the vulnerability to cause httpd to restart through the payload

Trust: 2.25

sources: NVD: CVE-2022-40076 // JVNDB: JVNDB-2022-017371 // CNVD: CNVD-2023-33066 // VULMON: CVE-2022-40076

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2023-33066

AFFECTED PRODUCTS

vendor:tendamodel:ac21scope:eqversion:16.03.08.15

Trust: 1.0

vendor:tendamodel:ac21scope: - version: -

Trust: 0.8

vendor:tendamodel:ac21scope:eqversion:ac21 firmware 16.03.08.15

Trust: 0.8

vendor:tendamodel:ac21scope:eqversion: -

Trust: 0.8

vendor:tendamodel:ac21scope:eqversion:v16.03.08.15

Trust: 0.6

sources: CNVD: CNVD-2023-33066 // JVNDB: JVNDB-2022-017371 // NVD: CVE-2022-40076

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2022-40076
value: HIGH

Trust: 1.0

NVD: CVE-2022-40076
value: HIGH

Trust: 0.8

CNVD: CNVD-2023-33066
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202209-1431
value: HIGH

Trust: 0.6

CNVD: CNVD-2023-33066
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-2022-40076
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-2022-40076
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-2023-33066 // JVNDB: JVNDB-2022-017371 // CNNVD: CNNVD-202209-1431 // NVD: CVE-2022-40076

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

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

Trust: 0.8

sources: JVNDB: JVNDB-2022-017371 // NVD: CVE-2022-40076

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202209-1431

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202209-1431

EXTERNAL IDS

db:NVDid:CVE-2022-40076

Trust: 3.9

db:JVNDBid:JVNDB-2022-017371

Trust: 0.8

db:CNVDid:CNVD-2023-33066

Trust: 0.6

db:CNNVDid:CNNVD-202209-1431

Trust: 0.6

db:VULMONid:CVE-2022-40076

Trust: 0.1

sources: CNVD: CNVD-2023-33066 // VULMON: CVE-2022-40076 // JVNDB: JVNDB-2022-017371 // CNNVD: CNNVD-202209-1431 // NVD: CVE-2022-40076

REFERENCES

url:https://github.com/xxy1126/vuln/tree/main/tenda%20ac21/4

Trust: 2.5

url:https://nvd.nist.gov/vuln/detail/cve-2022-40076

Trust: 1.4

url:https://cxsecurity.com/cveshow/cve-2022-40076/

Trust: 0.6

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2023-33066 // VULMON: CVE-2022-40076 // JVNDB: JVNDB-2022-017371 // CNNVD: CNNVD-202209-1431 // NVD: CVE-2022-40076

SOURCES

db:CNVDid:CNVD-2023-33066
db:VULMONid:CVE-2022-40076
db:JVNDBid:JVNDB-2022-017371
db:CNNVDid:CNNVD-202209-1431
db:NVDid:CVE-2022-40076

LAST UPDATE DATE

2024-08-14T15:21:37.292000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2023-33066date:2023-05-05T00:00:00
db:VULMONid:CVE-2022-40076date:2022-09-19T00:00:00
db:JVNDBid:JVNDB-2022-017371date:2023-10-12T08:21:00
db:CNNVDid:CNNVD-202209-1431date:2022-09-22T00:00:00
db:NVDid:CVE-2022-40076date:2022-09-21T15:34:07.327

SOURCES RELEASE DATE

db:CNVDid:CNVD-2023-33066date:2023-05-05T00:00:00
db:VULMONid:CVE-2022-40076date:2022-09-19T00:00:00
db:JVNDBid:JVNDB-2022-017371date:2023-10-12T00:00:00
db:CNNVDid:CNNVD-202209-1431date:2022-09-19T00:00:00
db:NVDid:CVE-2022-40076date:2022-09-19T15:15:13.520