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ID

VAR-202108-1585


CVE

CVE-2021-38543


TITLE

TP-Link UE330 USB  Vulnerabilities in splitter devices

Trust: 0.8

sources: JVNDB: JVNDB-2021-010856

DESCRIPTION

TP-Link UE330 USB splitter devices through 2021-08-09, in certain specific use cases in which the device supplies power to audio-output equipment, allow remote attackers to recover speech signals from an LED on the device, via a telescope and an electro-optical sensor, aka a "Glowworm" attack. We assume that the USB splitter supplies power to some speakers. The power indicator LED of the USB splitter is connected directly to the power line, as a result, the intensity of the USB splitter's power indicator LED is correlative to its power consumption. The sound played by the connected speakers affects the USB splitter's power consumption and as a result is also correlative to the light intensity of the LED. By analyzing measurements obtained from an electro-optical sensor directed at the power indicator LED of the USB splitter, we can recover the sound played by the connected speakers. The TP-Link UE330 USB is a ported USB 3.0 hub

Trust: 2.25

sources: NVD: CVE-2021-38543 // JVNDB: JVNDB-2021-010856 // CNVD: CNVD-2022-21172 // VULMON: CVE-2021-38543

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-21172

AFFECTED PRODUCTS

vendor:tp linkmodel:ue330scope:lteversion:2021-08-09

Trust: 1.0

vendor:tp linkmodel:ue330scope:eqversion: -

Trust: 0.8

vendor:tp linkmodel:ue330scope:eqversion:ue330 firmware 2021/08/09 to

Trust: 0.8

vendor:tp linkmodel:ue330 usbscope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2022-21172 // JVNDB: JVNDB-2021-010856 // NVD: CVE-2021-38543

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-38543
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-38543
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2022-21172
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202108-1090
value: MEDIUM

Trust: 0.6

VULMON: CVE-2021-38543
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-38543
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2022-21172
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-38543
baseSeverity: MEDIUM
baseScore: 5.9
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 2.2
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-38543
baseSeverity: MEDIUM
baseScore: 5.9
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2022-21172 // VULMON: CVE-2021-38543 // JVNDB: JVNDB-2021-010856 // CNNVD: CNNVD-202108-1090 // NVD: CVE-2021-38543

PROBLEMTYPE DATA

problemtype:NVD-CWE-noinfo

Trust: 1.0

problemtype:Lack of information (CWE-noinfo) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-010856 // NVD: CVE-2021-38543

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202108-1090

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202108-1090

PATCH

title:top pageurl:https://www.tp-link.com/jp/

Trust: 0.8

title:Patch for TP-Link UE330 USB Information Disclosure Vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/326741

Trust: 0.6

title:TP-Link UE330 USB Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=159557

Trust: 0.6

sources: CNVD: CNVD-2022-21172 // JVNDB: JVNDB-2021-010856 // CNNVD: CNNVD-202108-1090

EXTERNAL IDS

db:NVDid:CVE-2021-38543

Trust: 3.9

db:JVNDBid:JVNDB-2021-010856

Trust: 0.8

db:CNVDid:CNVD-2022-21172

Trust: 0.6

db:CNNVDid:CNNVD-202108-1090

Trust: 0.6

db:VULMONid:CVE-2021-38543

Trust: 0.1

sources: CNVD: CNVD-2022-21172 // VULMON: CVE-2021-38543 // JVNDB: JVNDB-2021-010856 // CNNVD: CNNVD-202108-1090 // NVD: CVE-2021-38543

REFERENCES

url:https://www.nassiben.com/glowworm-attack

Trust: 2.5

url:https://nvd.nist.gov/vuln/detail/cve-2021-38543

Trust: 1.4

url:https://cwe.mitre.org/data/definitions/.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2022-21172 // VULMON: CVE-2021-38543 // JVNDB: JVNDB-2021-010856 // CNNVD: CNNVD-202108-1090 // NVD: CVE-2021-38543

SOURCES

db:CNVDid:CNVD-2022-21172
db:VULMONid:CVE-2021-38543
db:JVNDBid:JVNDB-2021-010856
db:CNNVDid:CNNVD-202108-1090
db:NVDid:CVE-2021-38543

LAST UPDATE DATE

2024-08-14T13:23:27.462000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-21172date:2022-03-21T00:00:00
db:VULMONid:CVE-2021-38543date:2021-08-23T00:00:00
db:JVNDBid:JVNDB-2021-010856date:2022-07-11T02:07:00
db:CNNVDid:CNNVD-202108-1090date:2021-08-24T00:00:00
db:NVDid:CVE-2021-38543date:2021-08-23T16:56:23.440

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-21172date:2022-03-21T00:00:00
db:VULMONid:CVE-2021-38543date:2021-08-11T00:00:00
db:JVNDBid:JVNDB-2021-010856date:2022-07-11T00:00:00
db:CNNVDid:CNNVD-202108-1090date:2021-08-11T00:00:00
db:NVDid:CVE-2021-38543date:2021-08-11T16:15:07.210