CVE-2024-34711: SSRF in GeoServer Web Application

The SSRF vulnerability in GeoServer allows attackers to bypass security controls and interact with internal systems that are not directly accessible from the outside world. An attacker could use this to scan the internal network for open ports and services, potentially identifying other vulnerable targets. The ability to read .xsd files, while limited, could still expose sensitive configuration details or internal file paths. Successful exploitation could lead to information disclosure, privilege escalation, and further compromise of the GeoServer environment and connected systems. This vulnerability shares similarities with other SSRF exploits where attackers leverage misconfigured URI handling to gain unauthorized access.

1. Reserved2024-05-07
2. Published2025-06-10
3. EPSS updated2026-04-02

The primary mitigation for CVE-2024-34711 is to upgrade GeoServer to version 2.25.0 or later, which includes a fix for the improper URI validation. If immediate upgrading is not possible, consider implementing a Web Application Firewall (WAF) with rules to block requests containing suspicious URIs or XML entities. Additionally, restrict network access to GeoServer to only necessary services and hosts. Regularly review GeoServer configuration files for any potential misconfigurations that could exacerbate the vulnerability. After upgrading, confirm the fix by attempting to trigger the SSRF vulnerability with a known malicious URI and verifying that the request is blocked.