CVE-2023-35927

NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, when two server are registered as trusted servers for each other and successfully exchanged the share secrets, the malicious server could modify or delete VCards in the system addressbook on the origin server. This would impact the available and shown information in certain places, such as the user search and avatar menu. If a manipulated user modifies their own data in the personal settings the entry is fixed again. Nextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. A workaround is available. Remove all trusted servers in the "Administration" > "Sharing" settings `…/index.php/settings/admin/sharing`. Afterwards, trigger a recreation of the local system addressbook with the following `occ dav:sync-system-addressbook`.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*

History

05 Jul 2023, 13:32

Type Values Removed Values Added
CWE CWE-284 NVD-CWE-noinfo
First Time Nextcloud nextcloud Server
Nextcloud
References (MISC) https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87 - (MISC) https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87 - Vendor Advisory
References (MISC) https://hackerone.com/reports/1976754 - (MISC) https://hackerone.com/reports/1976754 - Permissions Required
References (MISC) https://github.com/nextcloud/server/pull/38247 - (MISC) https://github.com/nextcloud/server/pull/38247 - Issue Tracking
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 8.1
CPE cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*

23 Jun 2023, 21:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-06-23 21:15

Updated : 2023-12-10 15:01


NVD link : CVE-2023-35927

Mitre link : CVE-2023-35927

CVE.ORG link : CVE-2023-35927


JSON object : View

Products Affected

nextcloud

  • nextcloud_server
CWE
NVD-CWE-noinfo CWE-284

Improper Access Control