CVE-2023-41894
Assigner: GitHub_M
Published: 2023-10-19T23:23:17.909Z
State: PUBLISHED
title: Local-only webhooks externally accessible via SniTun in Home Assistant Core
problemTypes: descriptions: cweId: CWE-669
description: CWE-669: Incorrect Resource Transfer Between Spheres
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
version: 3.1
affected: vendor: home-assistant
product: core
versions: version: < 2023.9.0
status: affected
descriptions: value: 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.
source: advisory: GHSA-wx3j-3v2j-rf45
discovery: UNKNOWN