Improper Restriction of Excessive Authentication Attempts in Nextcloud Enterprise Server and Nextcloud Server - CVE-2023-32319
Published: May 29, 2023
Vulnerability identifier: #VU76591
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-32319
CWE-ID: CWE-307
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to missing brute force protection on the WebDAV endpoints. A remote user can brute-force user credentials when the provided user name is not an email address.
Affected software
Nextcloud Enterprise Server
Nextcloud Server
Nextcloud Server
How to mitigate CVE-2023-32319
Install updates from vendor's website.
Nextcloud Enterprise Server - addressed in versions 23.0.12.6, 24.0.12, 25.0.5, 26.0.0
Nextcloud Server - addressed in versions 24.0.11, 25.0.5, 26.0.0
Nextcloud Server - addressed in versions 24.0.11, 25.0.5, 26.0.0