CVE-2025-30145
📋 TL;DR
GeoServer versions before 2.27.0, 2.26.3, and 2.25.7 are vulnerable to denial of service attacks through malicious Jiffle scripts. Attackers can submit specially crafted scripts via WMS dynamic styling or WPS processes that cause infinite loops, crashing the server. This affects all GeoServer instances with these features enabled.
💻 Affected Systems
- GeoServer
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete service outage of GeoServer, making all geospatial data services unavailable until manual restart.
Likely Case
Temporary service disruption affecting WMS and WPS functionality, requiring administrator intervention.
If Mitigated
Minimal impact if workarounds are implemented or patched versions are deployed.
🎯 Exploit Status
Exploitation requires sending malicious Jiffle scripts via WMS or WPS endpoints, which are typically accessible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.27.0, 2.26.3, or 2.25.7
Vendor Advisory: https://github.com/geoserver/geoserver/security/advisories/GHSA-gr67-pwcv-76gf
Restart Required: Yes
Instructions:
1. Backup current GeoServer configuration. 2. Download patched version from official GeoServer website. 3. Stop GeoServer service. 4. Replace with patched version. 5. Restart GeoServer service. 6. Verify functionality.
🔧 Temporary Workarounds
Disable WMS Dynamic Styling
allPrevents exploitation via WMS dynamic styling by disabling the feature.
Edit web.xml to remove or comment out WMS dynamic styling servlet mappings
Disable Jiffle Process in WPS
allPrevents exploitation via WPS by disabling Jiffle process execution.
Edit wps.xml configuration file to remove Jiffle process factory
🧯 If You Can't Patch
- Implement network controls to restrict access to WMS and WPS endpoints to trusted sources only.
- Monitor GeoServer logs for unusual Jiffle script execution patterns and implement rate limiting.
🔍 How to Verify
Check if Vulnerable:
Check GeoServer version via admin interface or by examining version files in installation directory.Check Version:
Check WEB-INF/web.xml or admin interface for version information.Verify Fix Applied:
Verify version is 2.27.0, 2.26.3, or 2.25.7 or higher, and test WMS/WPS functionality with safe Jiffle scripts.📡 Detection & Monitoring
Log Indicators:
- Repeated Jiffle script execution errors
- Unusually long processing times for WMS/WPS requests
- Server restart logs following service crashes
Network Indicators:
- High volume of requests to WMS GetMap or WPS Execute endpoints with Jiffle parameters
- Abnormal request patterns to /geoserver/wms or /geoserver/wps
SIEM Query:
source="geoserver.log" AND ("Jiffle" OR "infinite loop" OR "WMS dynamic" OR "WPS process")