CVE-2023-27482: Critical severity skydrive assistant vulnerability

Published Mar 8, 2023
·
Updated

homeassistant is an open source home automation tool. A remotely exploitable vulnerability bypassing authentication for accessing the Supervisor API through Home Assistant has been discovered. This impacts all Home Assistant installation types that use the Supervisor 2023.01.1 or older. Installation types, like Home Assistant Container (for example Docker), or Home Assistant Core manually in a Python environment, are not affected. The issue has been mitigated and closed in Supervisor version 2023.03.1, which has been rolled out to all affected installations via the auto-update feature of the Supervisor. This rollout has been completed at the time of publication of this advisory. Home Assistant Core 2023.3.0 included mitigation for this vulnerability. Upgrading to at least that version is thus advised. In case one is not able to upgrade the Home Assistant Supervisor or the Home Assistant Core application at this time, it is advised to not expose your Home Assistant instance to the internet.

Affected Software

2 affected components
home-assistant home-assistant<2023.3.0
home-assistant Supervisor<2023.03.1

Event History

Mar 8, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is CVE-2023-27482?

CVE-2023-27482 is a remotely exploitable vulnerability that allows bypassing authentication for accessing the Supervisor API through Home Assistant.

2

How does CVE-2023-27482 impact homeassistant installations?

CVE-2023-27482 impacts all Home Assistant installations that use Supervisor version 2023.01.1 or older.

3

What is the severity of CVE-2023-27482?

CVE-2023-27482 has a severity level of critical.

4

How do I fix CVE-2023-27482?

To fix CVE-2023-27482, update Home Assistant and Supervisor to versions 2023.03.1 or later.

5

Where can I find more information about CVE-2023-27482?

More information about CVE-2023-27482 can be found in the following references: - [GitHub Advisory](https://github.com/elttam/publications/blob/master/writeups/home-assistant/supervisor-authentication-bypass-advisory.md) - [GitHub Security Advisory](https://github.com/home-assistant/core/security/advisories/GHSA-2j8f-h4mr-qr25) - [Elttam Blog](https://www.elttam.com/blog/pwnassistant/)

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