CVE-2023-25820

Nextcloud Server and Enterprise Server missing brute force protection on password confirmation modal

State: Published
Severity: 4.2 Medium
Published: Mar 22, 2023
Updated: Feb 25, 2025
Reserved: Feb 15, 2023

Description

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform, and Nextcloud Enterprise Server is the enterprise version of the file server software. In Nextcloud Server versions 25.0.x prior to 25.0.5 and versions 24.0.x prior to 24.0.10 as well as Nextcloud Enterprise Server versions 25.0.x prior to 25.0.4, 24.0.x prior to 24.0.10, 23.0.x prior to 23.0.12.5, 22.x prior to 22.2.0.10, and 21.x prior to 21.0.9.10, when an attacker gets access to an already logged in user session they can then brute force the password on the confirmation endpoint. Nextcloud Server should upgraded to 24.0.10 or 25.0.4 and Nextcloud Enterprise Server should upgraded to 21.0.9.10, 22.2.10.10, 23.0.12.5, 24.0.10, or 25.0.4 to receive a patch. No known workarounds are available.

Scores

CVSS	Score	Vector	Source
3.1	4.2 Medium	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L	GitHub_M

Weaknesses

CWE-307 Improper Restriction of Excessive Authentication Attempts

Affected Products

Product	Versions
security-advisoriesnextcloud	Nextcloud Server >= 24.0.0, < 24.0.10Affected Nextcloud Server >= 25.0.0, < 25.0.4Affected Nextcloud Enterprise Server >= 25.0.0, < 25.0.4Affected Nextcloud Enterprise Server >= 24.0.0, < 24.0.10Affected Nextcloud Enterprise Server >= 23.0.0, < 23.0.12.5Affected Nextcloud Enterprise Server >= 22.0.0, < 22.2.10.10Affected Nextcloud Enterprise Server >= 21.0.0, < 21.0.9.10Affected

References

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