Nextcloud Server/Enterprise Server access control

Summaryinfo

A vulnerability labeled as critical has been found in Nextcloud Server and Enterprise Server. This issue affects some unknown processing. Such manipulation leads to access control. This vulnerability is traded as CVE-2023-39963. An attack has to be approached locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Nextcloud Server and Enterprise Server (Cloud Software) (the affected version unknown). It has been rated as critical. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a missing password confirmation allowed an attacker, after successfully stealing a session from a logged in user, to create app passwords for the victim. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

The weakness was shared 08/10/2023 as GHSA-j4qm-5q5x-54m5. The advisory is available at github.com. This vulnerability is handled as CVE-2023-39963 since 08/07/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Cloud Software

Vendor

• Nextcloud

Name

• Enterprise Server
• Server

License

• open-source

Website

• Product: https://github.com/nextcloud/server/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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