Lucene search

[email protected]NVD:CVE-2023-48239

HistoryNov 21, 2023 - 9:15 p.m.

CVE-2023-48239

2023-11-2121:15:08

CWE-284

[email protected]

web.nvd.nist.gov

nextcloud

server

vulnerability

data storage

patch

malicious user

external storage

workaround

CVSS3

7.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

EPSS

0.001

Percentile

20.3%

JSON

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Server and starting in version 20.0.0 and prior to versions 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Enterprise Server, a malicious user could update any personal or global external storage, making them inaccessible for everyone else as well. Nextcloud Server 25.0.13, 26.0.8, and 27.1.3 and Nextcloud Enterprise Server is upgraded to 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 contain a patch for this issue. As a workaround, disable app files_external. This workaround also makes the external storage inaccessible but retains the configurations until a patched version has been deployed.

Affected configurations

Nvd

Node

nextcloudnextcloud_serverRange20.0.0–20.0.14.16enterprise

nextcloudnextcloud_serverRange21.0.0–21.0.9.13enterprise

nextcloudnextcloud_serverRange22.0.0–22.2.10.15enterprise

nextcloudnextcloud_serverRange23.0.0–23.0.12.12enterprise

nextcloudnextcloud_serverRange24.0.0–24.0.12.8enterprise

nextcloudnextcloud_serverRange25.0.0–25.0.13-

nextcloudnextcloud_serverRange25.0.0–25.0.13enterprise

nextcloudnextcloud_serverRange26.0.0–26.0.8-

nextcloudnextcloud_serverRange26.0.0–26.0.8enterprise

nextcloudnextcloud_serverRange27.0.0–27.1.3-

nextcloudnextcloud_serverRange27.0.0–27.1.3enterprise

VendorProductVersionCPE
nextcloudnextcloud_server*cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
nextcloudnextcloud_server*cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*

Vendor	Product	Version	CPE
nextcloud	nextcloud_server	*	cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::*
nextcloud	nextcloud_server	*	cpe:2.3:a:nextcloud:nextcloud_server:::::-:::*