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CVE-2023-41339

Unsecured WMS dynamic styling sld=<url> parameter affords blind unauthenticated SSRF in GeoServer

Published: Oct 24, 2023Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-918
NVD MITRE
8.6CVSSHIGH
EPSS Score
0.5%
Top 60.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-918

Affected Products

geoserverosgeo
Mixed
OSS Libraries / generic-library
org.geoserver:gs-wmsMavenOSS Libraries
org.geoserver.web:gs-web-appMavenOSS Libraries
geoservergeoserver
On-prem
Web & CMS Plugins / cms-core
osgeooss-projectOSS Librariesaka gdal, geoserver, mapserver
mavenpackage-ecosystemOSS Libraries
geoserveross-projectWeb & CMS Pluginsaka geoserver, geowebcache

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/geoserver/geoserver/releases/tag/2.22.5
github.com
https://github.com/geoserver/geoserver/releases/tag/2.23.2
github.com
https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf
github.com
and 2 more references View all →

Timeline

Published
Oct 24, 2023
Last Updated
Nov 21, 2024

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