Unspecified file extensions must not be allowed to execute on the production web server.

SV-32650r2_rule Unspecified file extensions must not be allowed to execute on the production web server.

Vulnerability discussion

By allowing unspecified file extensions to execute, the web servers attack surface is significantly increased. This increased risk can be reduced by only allowing specific ISAPI extensions or CGI extensions to run on the web server.

Check content

1. Open the IIS Manager. 2. Click the Server. 3. Double-click the ISAPI and CGI restrictions icon. 4. Click Edit Feature Settings and verify the CGI and ISAPI Modules are NOT checked. If they are checked, this is a finding.

Fix text

1. Open the IIS Manager. 2. Click the Server. 3. Double-click the ISAPI and CGI restrictions icon. 4. Click Edit Feature Settings and uncheck the CGI and ISAPI Modules check boxes.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.