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CVE-2023-41339

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Date: October 25, 2023

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.

Language: Java

Severity Score

Related Resources (5)

https://github.com/geoserver/geoserver/releases/tag/2.23.2
https://nvd.nist.gov/vuln/detail/CVE-2023-41339
https://github.com/geoserver/geoserver/releases/tag/2.22.5
https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf
https://www.mend.io/vulnerability-database/CVE-2023-41339

Severity Score

Weakness Type (CWE)

Server-Side Request Forgery (SSRF)

CWE-918

Top Fix

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Upgrade Version

Upgrade to version org.geoserver:gs-wms:2.22.5,2.23.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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