CVE-2023-39958

Missing brute force protection on password reset token OAuth2 API controller

CVSS 5.8 MEDIUMEPSS 0.6%CWE-307

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.8EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

10 Aug 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

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

Affected products

nextcloud · security-advisories

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vv27-g2hq-v48h https://github.com/nextcloud/server/pull/38773 https://hackerone.com/reports/1258448