CVE-2020-27488

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    CVE-2020-27488

    Published: 13 Jan 2021Last Modified: 10 Mar 2026

    Summary:

    Details: 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.

    References: , https://www.loxone.com/dede/sicherheit-cloud-dns/, https://www.loxone.com/enen/security-cloud-dns/, https://iot-lab-fh-ooe.github.io/loxone_clouddns_schwachstelle/, https://iot-lab-fh-ooe.github.io/loxone_clouddns_vulnerability/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2020-27488 | CVE-DB