Vulnerability · Published Mar 22, 2023 · Assigned by GitHub_M
CVE-2023-25820Nextcloud Server and Enterprise Server missing brute force protection on password confirmation modal
Medium 4.2
In plain English
A medium-severity security flaw in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| nextcloud | security-advisories | Nextcloud Server >= 24.0.0, < 24.0.10Nextcloud Server >= 25.0.0, < 25.0.4Nextcloud Enterprise Server >= 25.0.0, < 25.0.4Nextcloud Enterprise Server >= 24.0.0, < 24.0.10Nextcloud Enterprise Server >= 23.0.0, < 23.0.12.5Nextcloud Enterprise Server >= 22.0.0, < 22.2.10.10Nextcloud Enterprise Server >= 21.0.0, < 21.0.9.10 |
Weakness: CWE-307 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-36g6-wjx2-333x x_refsource_CONFIRM
- https://github.com/nextcloud/server/pull/36489 x_refsource_MISC
- https://hackerone.com/reports/1842114 x_refsource_MISC