The IIS 8.5 web server must have a global authorization rule configured to restrict access.

From IIS 8.5 Server Security Technical Implementation Guide

Associated with: CCI-000366

SV-91467r2_rule The IIS 8.5 web server must have a global authorization rule configured to restrict access.

Vulnerability discussion

Authorization rules can be configured at the server, website, folder (including Virtual Directories), or file level. It is recommended that URL Authorization be configured to only grant access to the necessary security principals. Configuring a global Authorization rule that restricts access ensures inheritance of the settings down through the hierarchy of web directories. This will ensure access to current and future content is only granted to the appropriate principals, mitigating risk of unauthorized access.

Check content

Open the IIS 8.5 Manager. Click the IIS 8.5 web server name. Double-click the “Authorization Rules” icon. If any user other than “Administrator” is listed, this is a finding.

Fix text

Open the IIS 8.5 Manager. Click the IIS 8.5 web server name. Double-click the “Authorization Rules” icon. Remove all users other than “Administrator”.

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.