CVE-2023-41339: geoserver Server-Side Request Forgery (SSRF)

Vulnerability summary

CVE-2023-41339 is a high (CVSS 8.6) Server-Side Request Forgery (SSRF) vulnerability in geoserver. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.7% of scored vulnerabilities.

Timeline

1. 24-10-2023
   PublishedVulnerability first disclosed.
2. 11-09-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-918Server-Side Request Forgery (SSRF)The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.