SSRF in Nextcloud Server
CVE-2023-25162
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server prior to 24.0.8 and 23.0.12 and Nextcloud Enterprise server prior to 24.0.8 and 23.0.12 are vulnerable to server-side request forgery (SSRF). Attackers can leverage enclosed alphanumeric payloads to bypass IP filters and gain SSRF, which would allow an attacker to read crucial metadata if the server is hosted on the AWS platform. Nextcloud Server 24.0.8 and 23.0.2 and Nextcloud Enterprise Server 24.0.8 and 23.0.12 contain a patch for this issue. No known workarounds are available.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Nextcloud Server
- Nextcloud Security-Advisories — versions < 23.0.12, >= 24.0.0, < 24.0.8
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-mqrx-grp7-244m (Vendor Advisory)
- github.com/nextcloud/server/pull/34160 (Issue Tracking)
- hackerone.com/reports/1702864 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-25162?
- CVE-2023-25162 is a medium-severity vulnerability in Nextcloud Server, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2023-02-13.
- How severe is CVE-2023-25162?
- Medium severity. CVSS v3 base score is 5.3 out of 10.