Vulnerability · Published Apr 25, 2023 · Assigned by GitHub_M
CVE-2023-28847Nextcloud Server missing brute force protection for passwords of password protected share links
Low 3.1
In plain English
A low-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 0.8% (higher than 56% of all known vulnerabilities).
Official description
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. In Nextcloud Server 24.0.0 prior to 24.0.11 and 25.0.0 prior to 25.0.5; as well as Nextcloud Server Enterprise 23.0.0 prior to 23.0.12.6, 24.0.0 prior to 24.0.11, and 25.0.0 prior to 25.0.5; an attacker is not restricted in verifying passwords of share links so they can just start brute forcing the password. Nextcloud Server 24.0.11 and 25.0.5 and Nextcloud Enterprise Server 23.0.12.6, 24.0.11, and 25.0.5 contain a fix for this issue. No known workarounds are available.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| nextcloud | security-advisories | >= 23.0.0, < 23.0.12.6>= 24.0.0, < 24.0.11>= 25.0.0, < 25.0.5 |
Weakness: CWE-307 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r5wf-xj97-3w7w x_refsource_CONFIRM
- https://github.com/nextcloud/server/pull/35057 x_refsource_MISC
- https://hackerone.com/reports/1894653 x_refsource_MISC