CVE-2020-27488

Loxone Miniserver devices with firmware before 11.1 (aka 11.1.9.3) are unable to use an authentication method that is based on the "signature of the update package." Therefore, these devices (or attackers who are spoofing these devices) can continue to use an unauthenticated cloud service for an indeterminate time period (possibly forever). Once an individual device's firmware is updated, and authentication occurs once, the cloud service recategorizes the device so that authentication is subsequently always required, and spoofing cannot occur.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : 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

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://iot-lab-fh-ooe.github.io/loxone_clouddns_vulnerability/	Exploit Third Party Advisory
https://iot-lab-fh-ooe.github.io/loxone_clouddns_schwachstelle/	Exploit Third Party Advisory
https://www.loxone.com/dede/sicherheit-cloud-dns/	Product Vendor Advisory
https://www.loxone.com/enen/security-cloud-dns/	Vendor Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:loxone:miniserver_gen_1_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:loxone:miniserver_gen_1:-:*:*:*:*:*:*:*

Information

Published : 2021-01-13 12:15

Updated : 2021-01-21 08:58

NVD link : CVE-2020-27488

Mitre link : CVE-2020-27488

JSON object : View

CWE

CWE-287

Improper Authentication

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Products Affected

loxone

miniserver_gen_1_firmware
miniserver_gen_1

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