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GHSA-5gw5-jccf-6hxw

HighCVSS 7.5 / 10
Published Jun 10, 2025·Last modified Jun 10, 2025
Affected Components(0)

No affected components available

Description

Summary

It possible to achieve Service Side Request Forgery (SSRF) via the Demo request endpoint if Proxy Base URL has not been set.

Details

A unauthenticated user can supply a request that will be issued by the server. This can be used to enumerate internal networks and also in the case of cloud instances can be used to obtain sensitive data.

Mitigation

  1. When using GeoServer with a proxy, manage the proxy base value as a system administrator, use the application property PROXY_BASE_URL to provide a non-empty value that cannot be overridden by the user interface or incoming request.

  2. When using GeoServer directly without a proxy, block all access to TestWfsPost by editing the web.xml file. Adding this block right before the end:

       <security-constraint>
        <web-resource-collection>
            <web-resource-name>BlockDemoRequests</web-resource-name>
            <url-pattern>/TestWfsPost/*</url-pattern>
        </web-resource-collection>
        <auth-constraint>
            <role-name>BLOCKED</role-name>
        </auth-constraint>
    </security-constraint>

Resolution

Upgrading to GeoServer 2.24.4, or 2.25.2, removes the TestWfsPost servlet resolving this issue.

The demo request page functionality is now implemented directly in the browser.

Reference

  • https://osgeo-org.atlassian.net/browse/GEOS-11794
  • https://osgeo-org.atlassian.net/browse/GEOS-11390
  • https://nvd.nist.gov/vuln/detail/CVE-2021-40822
Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
6.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
1.92%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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