CVE-2023-39958

2023-08-1018:15:09

CWE-307

[email protected]

web.nvd.nist.gov

nextcloud

oauth2

client secrets

brute force

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

35.0%

JSON

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 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.

Affected configurations

Nvd

Node

nextcloudnextcloud_serverRange22.0.0–22.2.10.14enterprise

nextcloudnextcloud_serverRange23.0.0–23.0.12.9enterprise

nextcloudnextcloud_serverRange24.0.0–24.0.12.5enterprise

nextcloudnextcloud_serverRange25.0.0–25.0.9-

nextcloudnextcloud_serverRange25.0.0–25.0.9enterprise

nextcloudnextcloud_serverRange26.0.0–26.0.4-

nextcloudnextcloud_serverRange26.0.0–26.0.4enterprise

nextcloudnextcloud_serverMatch27.0.0-

nextcloudnextcloud_serverMatch27.0.0enterprise

VendorProductVersionCPE
nextcloudnextcloud_server*cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
nextcloudnextcloud_server*cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*
nextcloudnextcloud_server27.0.0cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:-:*:*:*
nextcloudnextcloud_server27.0.0cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:enterprise:*:*:*

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:::::-:::*
nextcloud	nextcloud_server	27.0.0	cpe:2.3:a:nextcloud:nextcloud_server:27.0.0::::-:::
nextcloud	nextcloud_server	27.0.0	cpe:2.3:a:nextcloud:nextcloud_server:27.0.0::::enterprise:::