Home Assistant prior 2023.9.0 redirect_uri/client_id cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Home Assistant and classified as problematic. This issue affects some unknown processing. Executing a manipulation of the argument redirect_uri/client_id can lead to cross site scripting. This vulnerability is handled as CVE-2023-41895. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Home Assistant. It has been declared as problematic. This vulnerability affects an unknown code. The manipulation of the argument redirect_uri/client_id with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

Home assistant is an open source home automation. The Home Assistant login page allows users to use their local Home Assistant credentials and log in to another website that specifies the `redirect_uri` and `client_id` parameters. Although the `redirect_uri` validation typically ensures that it matches the `client_id` and the scheme represents either `http` or `https`, Home Assistant will fetch the `client_id` and check for `` HTML tags on the page. These URLs are not subjected to the same scheme validation and thus allow for arbitrary JavaScript execution on the Home Assistant administration page via usage of `javascript:` scheme URIs. This Cross-site Scripting (XSS) vulnerability can be executed on the Home Assistant frontend domain, which may be used for a full takeover of the Home Assistant account and installation. 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.

The weakness was released 10/20/2023 as GHSA-jvxq-x42r-f7mv. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-41895 since 09/04/2023. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2023.9.0 eliminates this vulnerability.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.6
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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-jvxq-x42r-f7mv
Status: Confirmed

CVE: CVE-2023-41895 (🔍)
GCVE (CVE): GCVE-0-2023-41895
GCVE (VulDB): GCVE-100-243016

Entryinfo

Created: 10/20/2023 08:15
Updated: 11/11/2023 18:59
Changes: 10/20/2023 08:15 (49), 11/11/2023 18:59 (11)
Complete: 🔍
Cache ID: 216::103

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