SSRF in Geoserver
CVE-2023-41339
GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. The WMS specification defines an ``sld=<url>`` parameter for GetMap, GetLegendGraphic and GetFeatureInfo operations for user supplied "dynamic styling". Enabling the use of dynamic styles, without also configuring URL checks, provides the opportunity for Service Side Request Forgery. This vulnerability can be used to steal user NetNTLMv2 hashes which could be relayed or cracked externally to gain further access. This vulnerability has been patched in versions 2.22.5 and 2.23.2.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (41.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Geoserver — versions < 2.22.5, >= 2.23.0, < 2.23.2
- Osgeo Geoserver
Weakness classification (CWE)
References
- github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf (Mitigation, Vendor Advisory)
- github.com/geoserver/geoserver/releases/tag/2.22.5 (Release Notes)
- github.com/geoserver/geoserver/releases/tag/2.23.2 (Release Notes)
Frequently asked questions
- What is CVE-2023-41339?
- CVE-2023-41339 is a high-severity vulnerability in Geoserver, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2023-10-25.
- How severe is CVE-2023-41339?
- High severity. CVSS v3 base score is 8.6 out of 10.