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ID

VAR-202203-2038


CVE

CVE-2021-43663


TITLE

TOTOLINK  of  ex300 v2  Command injection vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2021-019069

DESCRIPTION

totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component cloudupdate_check. TOTOLINK of ex300 v2 Firmware contains a command injection vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TotoLink EX300 is a 300 Mbps wireless N range extender from TotoLink in China

Trust: 2.16

sources: NVD: CVE-2021-43663 // JVNDB: JVNDB-2021-019069 // CNVD: CNVD-2022-54656

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-54656

AFFECTED PRODUCTS

vendor:totolinkmodel:ex300 v2scope:eqversion:4.0.3c.140_b20210429

Trust: 1.0

vendor:totolinkmodel:ex300 v2scope:eqversion:ex300 v2 firmware 4.0.3c.140 b20210429

Trust: 0.8

vendor:totolinkmodel:ex300 v2scope:eqversion: -

Trust: 0.8

vendor:totolinkmodel:ex300 v2scope: - version: -

Trust: 0.8

vendor:totolinkmodel:ex300 v2 v4.0.3c.140 b20210429scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2022-54656 // JVNDB: JVNDB-2021-019069 // NVD: CVE-2021-43663

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-43663
value: HIGH

Trust: 1.0

NVD: CVE-2021-43663
value: HIGH

Trust: 0.8

CNVD: CNVD-2022-54656
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202203-2640
value: HIGH

Trust: 0.6

nvd@nist.gov: CVE-2021-43663
severity: HIGH
baseScore: 7.9
vectorString: AV:A/AC:M/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 5.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2022-54656
severity: HIGH
baseScore: 7.9
vectorString: AV:A/AC:M/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 5.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-43663
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.6
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2021-43663
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT NETWORK
attackComplexity: HIGH
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-2022-54656 // JVNDB: JVNDB-2021-019069 // CNNVD: CNNVD-202203-2640 // NVD: CVE-2021-43663

PROBLEMTYPE DATA

problemtype:CWE-77

Trust: 1.0

problemtype:Command injection (CWE-77) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-019069 // NVD: CVE-2021-43663

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202203-2640

TYPE

command injection

Trust: 0.6

sources: CNNVD: CNNVD-202203-2640

EXTERNAL IDS

db:NVDid:CVE-2021-43663

Trust: 3.8

db:JVNDBid:JVNDB-2021-019069

Trust: 0.8

db:CNVDid:CNVD-2022-54656

Trust: 0.6

db:CNNVDid:CNNVD-202203-2640

Trust: 0.6

sources: CNVD: CNVD-2022-54656 // JVNDB: JVNDB-2021-019069 // CNNVD: CNNVD-202203-2640 // NVD: CVE-2021-43663

REFERENCES

url:https://github.com/chibataiki/iot-vuls/blob/main/totolink/command-injection1.md

Trust: 3.0

url:https://nvd.nist.gov/vuln/detail/cve-2021-43663

Trust: 1.4

url:https://cxsecurity.com/cveshow/cve-2021-43663/

Trust: 0.6

sources: CNVD: CNVD-2022-54656 // JVNDB: JVNDB-2021-019069 // CNNVD: CNNVD-202203-2640 // NVD: CVE-2021-43663

SOURCES

db:CNVDid:CNVD-2022-54656
db:JVNDBid:JVNDB-2021-019069
db:CNNVDid:CNNVD-202203-2640
db:NVDid:CVE-2021-43663

LAST UPDATE DATE

2024-11-23T22:20:32.456000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-54656date:2022-08-02T00:00:00
db:JVNDBid:JVNDB-2021-019069date:2023-07-14T08:39:00
db:CNNVDid:CNNVD-202203-2640date:2022-04-06T00:00:00
db:NVDid:CVE-2021-43663date:2024-11-21T06:29:34.317

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-54656date:2022-08-02T00:00:00
db:JVNDBid:JVNDB-2021-019069date:2023-07-14T00:00:00
db:CNNVDid:CNNVD-202203-2640date:2022-03-30T00:00:00
db:NVDid:CVE-2021-43663date:2022-03-31T00:15:08.033