Overview 

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. (CWE-918)

 

Products Affected 

Hitachi Vantara Pentaho Business Analytics Server versions before 10.2.0.0 and 9.3.0.9, including 8.3.x.

 

Description 

Hitachi Vantara Pentaho Business Analytics Server versions before 10.2.0.0 and 9.3.0.9, including 8.3.x, do not validate the Host header of incoming HTTP/HTTPS requests.

 

Impact 

By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file://), or use other protocols such as gopher:// or tftp://, which may provide greater control over the contents of requests.

 

Action  

We recommend you upgrade to the latest Hitachi Vantara Pentaho 10.2 release where this vulnerability is addressed. For version 9.3, we recommend installing Service Pack 9.3.0.9 or higher where this vulnerability is addressed. 

 

Please review the Pentaho End-of-Life policy to ensure you are up to date.

 

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