CVE-2023-39960

Nextcloud Server has improper restriction of excessive authentication attempts on WebDAV endpoint

CVSS 5 MEDIUMEPSS 0.6%CWE-307

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

13 Oct 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. In Nextcloud Server starting with 25.0.0 and prior to 25.09 and 26.04; as well as Nextcloud Enterprise Server starting with 22.0.0 and prior to 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, and 26.0.4; missing protection allows an attacker to brute force passwords on the WebDAV API. Nextcloud Server 25.0.9 and 26.0.4 and Nextcloud Enterprise Server 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, and 26.0.4 contain patches for this issue. No known workarounds are available.

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

Affected products

nextcloud · security-advisories

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References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2hrc-5fgp-c9c9 https://github.com/nextcloud/server/pull/38046 https://hackerone.com/reports/1924212