CVE-2021-27952

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 5.0 MEDIUM

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-devices	Exploit Third Party Advisory
https://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-devices	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:ecobee:ecobee3_lite_firmware:4.5.81.200:*:*:*:*:*:*:*

cpe:2.3:h:ecobee:ecobee3_lite:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:58

Type	Values Removed	Values Added
References	~~() https://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-devices - Exploit, Third Party Advisory~~	() https://www.l9group.com/advisories/hard-coded-default-root-credentials-for-all-ecobee3-lite-devices - Exploit, Third Party Advisory

Information

Published : 2021-08-03 15:15

Updated : 2024-11-21 05:58

NVD link : CVE-2021-27952

Mitre link : CVE-2021-27952

CVE.ORG link : CVE-2021-27952

JSON object : View

Products Affected

ecobee

ecobee3_lite_firmware
ecobee3_lite

CWE

CWE-798

Use of Hard-coded Credentials

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