PT-2023-28150 · Unknown · Home Assistant

Frenck · Published 2023-10-19 · Updated 2023-10-26 · CVE-2023-41894

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Home Assistant versions prior to 2023.9.0

Description The issue affects Home Assistant, an open-source home automation system. Webhooks in the webhook component can be triggered via the *.ui.nabu.casa URL without authentication, even when marked as only accessible from the local network. This 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.

Recommendations For versions prior to 2023.9.0, upgrade to version 2023.9.0 to address the issue. As a temporary workaround, consider restricting access to the webhook component until the upgrade is applied.

Exploit

Fix

Weakness Enumeration

CWE-669

Related Identifiers

CVE-2023-41894

GHSA-WX3J-3V2J-RF45

Affected Products

Home Assistant

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/41xxx/CVE-2023-41894.json · Exploit
• https://github.com/home-assistant/core/security/advisories/GHSA-wx3j-3v2j-rf45 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-41894 · Vendor Advisory
• https://home-assistant.io/blog/2023/10/19/security-audits-of-home-assistant · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-41894 · Security Note
• https://twitter.com/CVEnew/status/1715150437031215194 · Twitter Post
• https://t.me/cibsecurity/72640 · Telegram Post