Resource exhaustion in Nextcloud Server
CVE-2023-25816
Nextcloud is an Open Source private cloud software. Versions 25.0.0 and above, prior to 25.0.3, are subject to Uncontrolled Resource Consumption. A user can configure a very long password, consuming more resources on password validation than desired. This issue is patched in 25.0.3 No workaround is available.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.014 (70.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Nextcloud Server
- Nextcloud Security-Advisories — versions >= 25.0.0, < 25.0.3
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-53q2-cm29-7j83 (Vendor Advisory)
- github.com/nextcloud/server/pull/35965 (Patch)
- hackerone.com/reports/1820864 (Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2023-25816?
- CVE-2023-25816 is a medium-severity vulnerability in Nextcloud Server, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2023-02-25.
- How severe is CVE-2023-25816?
- Medium severity. CVSS v3 base score is 4.3 out of 10.