CVE-2023-41894 MEDIUM

CVE-2023-41894: Local-only webhooks externally accessible via SniTun in Home Assistant Core

Vendor Home-Assistant
Product core
Weakness CWE-669
Published October 19, 2023
Last update September 12, 2024
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

Home assistant is an open source home automation. The assessment verified that webhooks available in the webhook component are triggerable via the `*.ui.nabu.casa` URL without authentication, even when the webhook is marked as Only accessible from the local network. This issue is facilitated by the SniTun proxy, which sets the source address to 127.0.0.1 on all requests sent to the public URL and forwarded to the local Home Assistant. This issue has been addressed in version 2023.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Key dates

02Disclosure timeline

October 19, 2023 CVE published
September 12, 2024 Record updated