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ID

VAR-202108-0734


CVE

CVE-2021-27952


TITLE

ecobee3 lite  Vulnerability in Using Hard Coded Credentials

Trust: 0.8

sources: JVNDB: JVNDB-2021-009508

DESCRIPTION

Hardcoded default root credentials exist on the ecobee3 lite 4.5.81.200 device. This allows a threat actor to gain access to the password-protected bootloader environment through the serial console. ecobee3 lite Is vulnerable to the use of hard-coded credentials.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Ecobee Ecobee3 Lite is a Wi-Fi smart thermostat from Ecobee, Canada. Ecobee Ecobee3 Lite has security vulnerabilities

Trust: 2.25

sources: NVD: CVE-2021-27952 // JVNDB: JVNDB-2021-009508 // CNVD: CNVD-2021-59181 // VULMON: CVE-2021-27952

IOT TAXONOMY

category:['IoT']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-59181

AFFECTED PRODUCTS

vendor:ecobeemodel:ecobee3 litescope:eqversion:4.5.81.200

Trust: 1.6

vendor:ecobeemodel:ecobee3 litescope:eqversion:ecobee3 lite firmware 4.5.81.200

Trust: 0.8

vendor:ecobeemodel:ecobee3 litescope:eqversion: -

Trust: 0.8

sources: CNVD: CNVD-2021-59181 // JVNDB: JVNDB-2021-009508 // NVD: CVE-2021-27952

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-27952
value: CRITICAL

Trust: 1.0

NVD: CVE-2021-27952
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2021-59181
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202108-287
value: CRITICAL

Trust: 0.6

VULMON: CVE-2021-27952
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-27952
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2021-59181
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-27952
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-2021-27952
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-2021-59181 // VULMON: CVE-2021-27952 // JVNDB: JVNDB-2021-009508 // CNNVD: CNNVD-202108-287 // NVD: CVE-2021-27952

PROBLEMTYPE DATA

problemtype:CWE-798

Trust: 1.0

problemtype:Using hardcoded credentials (CWE-798) [NVD Evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-009508 // NVD: CVE-2021-27952

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202108-287

TYPE

trust management problem

Trust: 0.6

sources: CNNVD: CNNVD-202108-287

PATCH

title:Top Pageurl:https://www.ecobee.com/

Trust: 0.8

sources: JVNDB: JVNDB-2021-009508

EXTERNAL IDS

db:NVDid:CVE-2021-27952

Trust: 3.9

db:JVNDBid:JVNDB-2021-009508

Trust: 0.8

db:CNVDid:CNVD-2021-59181

Trust: 0.6

db:CNNVDid:CNNVD-202108-287

Trust: 0.6

db:VULMONid:CVE-2021-27952

Trust: 0.1

sources: CNVD: CNVD-2021-59181 // VULMON: CVE-2021-27952 // JVNDB: JVNDB-2021-009508 // CNNVD: CNNVD-202108-287 // NVD: CVE-2021-27952

REFERENCES

url:https://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-devices

Trust: 3.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-27952

Trust: 0.8

url:https://cwe.mitre.org/data/definitions/798.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2021-59181 // VULMON: CVE-2021-27952 // JVNDB: JVNDB-2021-009508 // CNNVD: CNNVD-202108-287 // NVD: CVE-2021-27952

SOURCES

db:CNVDid:CNVD-2021-59181
db:VULMONid:CVE-2021-27952
db:JVNDBid:JVNDB-2021-009508
db:CNNVDid:CNNVD-202108-287
db:NVDid:CVE-2021-27952

LAST UPDATE DATE

2024-08-14T14:37:58.039000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-59181date:2021-08-08T00:00:00
db:VULMONid:CVE-2021-27952date:2021-08-12T00:00:00
db:JVNDBid:JVNDB-2021-009508date:2022-05-02T06:15:00
db:CNNVDid:CNNVD-202108-287date:2021-08-13T00:00:00
db:NVDid:CVE-2021-27952date:2021-08-12T14:56:50.900

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-59181date:2021-08-08T00:00:00
db:VULMONid:CVE-2021-27952date:2021-08-03T00:00:00
db:JVNDBid:JVNDB-2021-009508date:2022-05-02T00:00:00
db:CNNVDid:CNNVD-202108-287date:2021-08-03T00:00:00
db:NVDid:CVE-2021-27952date:2021-08-03T15:15:08.250