Auth bypass in Nextcloud Server
CVE-2024-37313
Nextcloud server is a self hosted personal cloud system. Under some circumstance it was possible to bypass the second factor of 2FA after successfully providing the user credentials. It is recommended that the Nextcloud Server is upgraded to 26.0.13, 27.1.8 or 28.0.4 and Nextcloud Enterprise Server is upgraded to 21.0.9.17, 22.2.10.22, 23.0.12.17, 24.0.12.13, 25.0.13.8, 26.0.13, 27.1.8 or 28.0.4.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (31.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Nextcloud Server
- Nextcloud Security-Advisories — versions >= 26.0.0, < 26.0.13, >= 27.0.0, < 27.1.8, >= 28.0.0, < 28.0.4
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-9v72-9xv5-3p7c (Vendor Advisory)
- github.com/nextcloud/server/pull/44276 (Patch, Issue Tracking)
- hackerone.com/reports/2419776 (Issue Tracking)
Frequently asked questions
- What is CVE-2024-37313?
- CVE-2024-37313 is a high-severity vulnerability in Nextcloud Server, classified under Improper Authentication. CVSS score: 7.3/10. Published 2024-06-14.
- How severe is CVE-2024-37313?
- High severity. CVSS v3 base score is 7.3 out of 10.