Nextcloud Server up to 24.0.6/25.0.0 Image Preview authorization

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Nextcloud Server up to 24.0.6/25.0.0. Impacted is an unknown function of the component Image Preview Handler. Executing a manipulation can lead to authorization. This vulnerability appears as CVE-2022-41970. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Nextcloud Server up to 24.0.6/25.0.0 (Cloud Software). It has been declared as problematic. This vulnerability affects an unknown function of the component Image Preview Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality. CVE summarizes:

Nextcloud Server is an open source personal cloud server. Prior to versions 24.0.7 and 25.0.1, disabled download shares still allow download through preview images. Images could be downloaded and previews of documents (first page) can be downloaded without being watermarked. Versions 24.0.7 and 25.0.1 contain a fix for this issue. No known workarounds are available.

The weakness was presented 12/02/2022 as GHSA-9mh6-cph8-772c. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-41970 since 09/30/2022. There are neither technical details nor an exploit publicly available.

Upgrading to version 24.0.7 or 25.0.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
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: Server 24.0.7/25.0.1
Patch: github.com

Timelineinfo

09/30/2022 🔍
12/02/2022 +63 days 🔍
12/02/2022 +0 days 🔍
12/02/2022 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-9mh6-cph8-772c
Status: Confirmed

CVE: CVE-2022-41970 (🔍)
GCVE (CVE): GCVE-0-2022-41970
GCVE (VulDB): GCVE-100-214648

Entryinfo

Created: 12/02/2022 11:20
Changes: 12/02/2022 11:20 (43)
Complete: 🔍
Cache ID: 216::103

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