CVEvulnerability
CVE-2020-27488
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-01-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-287
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.
Affected configurations
• loxone miniserver gen 1 firmware (< 11.1.9.3)
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- 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
- 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