VDB-242999 · CVE-2023-41899 · GHSA-4r74-h49q-rr3h

Home Assistant prior 2023.9.0 REST API Endpoint hassio.addon_stdin server-side request forgery

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Home Assistant. This impacts the function hassio.addon_stdin of the component REST API Endpoint. The manipulation leads to server-side request forgery. This vulnerability is traded as CVE-2023-41899. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Home Assistant. It has been rated as critical. This issue affects the function hassio.addon_stdin of the component REST API Endpoint. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Home assistant is an open source home automation. In affected versions the `hassio.addon_stdin` is vulnerable to a partial Server-Side Request Forgery where an attacker capable of calling this service (e.g.: through GHSA-h2jp-7grc-9xpp) may be able to invoke any Supervisor REST API endpoints with a POST request. An attacker able to exploit will be able to control the data dictionary, including its addon and input key/values. 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. This issue is also tracked as GitHub Security Lab (GHSL) Vulnerability Report: `GHSL-2023-162`.

The weakness was shared 10/20/2023 as GHSA-4r74-h49q-rr3h. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2023-41899 since 09/04/2023. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2023.9.0 eliminates this vulnerability.

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Productinfo

Name

Home Assistant

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 6.6
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Home Assistant 2023.9.0

Timelineinfo

09/04/2023 🔍
10/20/2023 +46 days 🔍
10/20/2023 +0 days 🔍
11/11/2023 +22 days 🔍

Sourcesinfo

Advisory: GHSA-4r74-h49q-rr3h
Status: Confirmed

CVE: CVE-2023-41899 (🔍)
GCVE (CVE): GCVE-0-2023-41899
GCVE (VulDB): GCVE-100-242999

Entryinfo

Created: 10/20/2023 08:04
Updated: 11/11/2023 17:05
Changes: 10/20/2023 08:04 (50), 11/11/2023 17:05 (11)
Complete: 🔍
Cache ID: 216::103