CVE-2021-20989

Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older initiate SSH connections to the Fibaro cloud to provide remote access and remote support capabilities. This connection can be intercepted using DNS spoofing attack and a device initiated remote port-forward channel can be used to connect to the web management interface. Knowledge of authorization credentials to the management interface is required to perform any further actions.

CVSS v3.0 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://www.iot-inspector.com/blog/advisory-fibaro-home-center/	Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2021/Apr/27	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html	Exploit Third Party Advisory VDB Entry

Advertisement

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:fibaro:home_center_2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:fibaro:home_center_2:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:fibaro:home_center_lite_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:fibaro:home_center_lite:-:*:*:*:*:*:*:*

Information

Published : 2021-04-19 07:15

Updated : 2022-09-30 03:15

NVD link : CVE-2021-20989

Mitre link : CVE-2021-20989

JSON object : View

CWE

CWE-295

Improper Certificate Validation

Advertisement

Products Affected

fibaro

home_center_2_firmware
home_center_lite
home_center_2
home_center_lite_firmware

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.iot-inspector.com/blog/advisory-fibaro-home-center/", "name": "https://www.iot-inspector.com/blog/advisory-fibaro-home-center/", "tags": ["Exploit", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://seclists.org/fulldisclosure/2021/Apr/27", "name": "20210419 [CVE-2021-20989, CVE-2021-20990, CVE-2021-20991, CVE-2021-20992] Multiple vulnerabilities in Fibaro Home Center", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FULLDISC"}, {"url": "http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html", "name": "http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older initiate SSH connections to the Fibaro cloud to provide remote access and remote support capabilities. This connection can be intercepted using DNS spoofing attack and a device initiated remote port-forward channel can be used to connect to the web management interface. Knowledge of authorization credentials to the management interface is required to perform any further actions."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-295"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-20989", "ASSIGNER": "info@cert.vde.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.2}}, "publishedDate": "2021-04-19T14:15Z", "configurations": {"nodes": [{"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fibaro:home_center_2_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.600"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:fibaro:home_center_2:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fibaro:home_center_lite_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.600"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:fibaro:home_center_lite:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-09-30T10:15Z"}