Details of VAR-202203-1647

ID

VAR-202203-1647

CVE

CVE-2021-43636

TITLE

TOTOLINK of t10 v2 Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2021-019028

DESCRIPTION

Two Buffer Overflow vulnerabilities exists in T10 V2_Firmware V4.1.8cu.5207_B20210320 in the http_request_parse function when processing host data in the HTTP request process. TOTOLINK of t10 v2 Firmware has a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TotoLink T10 is a wireless network system router from TotoLink, a Taiwanese company. No detailed vulnerability details are currently available

Trust: 2.16

sources: NVD: CVE-2021-43636 // JVNDB: JVNDB-2021-019028 // CNVD: CNVD-2022-25203

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-25203

AFFECTED PRODUCTS

vendor:	totolink	model:	t10 v2	scope:	eq	version:	4.1.8cu.5207_b20210320	Trust: 1.0
vendor:	totolink	model:	t10 v2	scope:	eq	version:	-	Trust: 0.8
vendor:	totolink	model:	t10 v2	scope:	eq	version:	t10 v2 firmware 4.1.8cu.5207 b20210320	Trust: 0.8
vendor:	totolink	model:	t10 v2	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	t10 4.1.8cu.5207 b20210320	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2022-25203 // JVNDB: JVNDB-2021-019028 // NVD: CVE-2021-43636

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-43636
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2021-43636
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2022-25203
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202203-2261
value:	CRITICAL
Trust: 0.6

nvd@nist.gov:	CVE-2021-43636
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: 1.8
CNVD:	CNVD-2022-25203
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-2021-43636
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-2021-43636
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-2022-25203 // JVNDB: JVNDB-2021-019028 // CNNVD: CNNVD-202203-2261 // NVD: CVE-2021-43636

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2021-019028 // NVD: CVE-2021-43636

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202203-2261

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202203-2261

EXTERNAL IDS

db:	NVD	id:	CVE-2021-43636	Trust: 3.8
db:	JVNDB	id:	JVNDB-2021-019028	Trust: 0.8
db:	CNVD	id:	CNVD-2022-25203	Trust: 0.6
db:	CNNVD	id:	CNNVD-202203-2261	Trust: 0.6

sources: CNVD: CNVD-2022-25203 // JVNDB: JVNDB-2021-019028 // CNNVD: CNNVD-202203-2261 // NVD: CVE-2021-43636

REFERENCES

url:	https://note.youdao.com/s/918vcbnt	Trust: 1.6
url:	https://cxsecurity.com/cveshow/cve-2021-43636/	Trust: 1.2
url:	https://nvd.nist.gov/vuln/detail/cve-2021-43636	Trust: 0.8

sources: CNVD: CNVD-2022-25203 // JVNDB: JVNDB-2021-019028 // CNNVD: CNNVD-202203-2261 // NVD: CVE-2021-43636

SOURCES

db:	CNVD	id:	CNVD-2022-25203
db:	JVNDB	id:	JVNDB-2021-019028
db:	CNNVD	id:	CNNVD-202203-2261
db:	NVD	id:	CVE-2021-43636

LAST UPDATE DATE

2024-11-23T22:04:56.383000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-25203	date:	2022-04-01T00:00:00
db:	JVNDB	id:	JVNDB-2021-019028	date:	2023-07-13T08:31:00
db:	CNNVD	id:	CNNVD-202203-2261	date:	2022-04-01T00:00:00
db:	NVD	id:	CVE-2021-43636	date:	2024-11-21T06:29:33.040

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-25203	date:	2022-04-01T00:00:00
db:	JVNDB	id:	JVNDB-2021-019028	date:	2023-07-13T00:00:00
db:	CNNVD	id:	CNNVD-202203-2261	date:	2022-03-25T00:00:00
db:	NVD	id:	CVE-2021-43636	date:	2022-03-25T18:15:21.190