CVE-2020-27488 Detail

Current Description

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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://iot-lab-fh-ooe.github.io/loxone_clouddns_schwachstelle/ Exploit  Third Party Advisory 
https://iot-lab-fh-ooe.github.io/loxone_clouddns_vulnerability/ 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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-287 Improper Authentication cwe source acceptance level NIST  

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Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-27488
NVD Published Date:
01/13/2021
NVD Last Modified:
01/21/2021
Source:
MITRE