Vulnerability in Nextcloud Server
CVE-2023-45148
Nextcloud is an open source home cloud server. When Memcached is used as `memcache.distributed` the rate limiting in Nextcloud Server could be reset unexpectedly resetting the rate count earlier than intended. Users are advised to upgrade to versions 25.0.11, 26.0.6 or 27.1.0. Users unable to upgrade should change their config setting `memcache.distributed` to `\OC\Memcache\Redis` and install Redis instead of Memcached.
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: 0.007 (51.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Nextcloud Server — versions 27.0.0
- Nextcloud Security-Advisories — versions >= 25.0.0, < 25.0.11, >= 26.0.0, < 26.0.6, >= 27.0.0, < 27.1.0
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-xmhp-7vr4-hp63 (Vendor Advisory)
- github.com/nextcloud/server/pull/40293 (Patch, Issue Tracking)
- hackerone.com/reports/2110945 (Permissions Required)
Frequently asked questions
- What is CVE-2023-45148?
- CVE-2023-45148 is a medium-severity vulnerability in Nextcloud Server, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 4.3/10. Published 2023-10-16.
- How severe is CVE-2023-45148?
- Medium severity. CVSS v3 base score is 4.3 out of 10.