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GHSA-fjf5-xgmq-5525
No affected components available
Description
An XML External Entity (XXE) vulnerability was identified. The application accepts XML input through a specific endpoint /geoserver/wms operation GetMap. However, this input is not sufficiently sanitized or restricted, allowing an attacker to define external entities within the XML request.
An XML External Entity attack is a type of attack that occurs when XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, port scanning from the perspective of the machine where the parser is located, and other system impacts.
By exploiting this vulnerability, an attacker can:
- Read arbitrary files from the server's file system.
- Conduct Server-Side Request Forgery (SSRF) to interact with internal systems.
- Execute Denial of Service (DoS) attacks by exhausting resources.
Resolution
Update to GeoServer 2.25.6, GeoServer 2.26.3, or GeoServer 2.27.0.
Impact
The XXE vulnerability can be used to retrieve arbitrary files from the server's file system.
Reference
- https://osgeo-org.atlassian.net/browse/GEOS-11682
- XBOW-024-081
Disclaimer
This vulnerability was detected using XBOW, a system that autonomously finds and exploits potential security vulnerabilities. The finding has been thoroughly reviewed and validated by a security researcher before submission. While XBOW is intended to work autonomously, during its development human experts ensure the accuracy and relevance of its reports.
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. There is a low impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very high. The vulnerability is very likely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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