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CVE-2023-41894

Local-only webhooks externally accessible via SniTun in Home Assistant Core

Published: Oct 19, 2023Updated: Nov 21, 2024 Sources: CVE List NVDCWE-669
5.3MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 66.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-669NVD-CWE-Other

Affected Products

home-assistanthome-assistant
On-prem
ICS / OT / IoT / smart-home
corehome-assistant
On-prem
ICS / OT / IoT / smart-home
home-assistantoss-projectICS / OT / IoTaka home assistant, home-assistant.io, homeassistant

Exploitability

Official Patch Available

References

https://github.com/home-assistant/core/security/advisories/GHSA-wx3j-3v2j-rf45
github.com
https://www.home-assistant.io/blog/2023/10/19/security-audits-of-home-assistant/
home-assistant.io

Timeline

Published
Oct 19, 2023
Last Updated
Nov 21, 2024

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