A public IIS 8.5 website must only accept Secure Socket Layer connections when authentication is required.

From IIS 8.5 Site Security Technical Implementation Guide

Associated with: CCI-000068

SV-91477r1_rule A public IIS 8.5 website must only accept Secure Socket Layer connections when authentication is required.

Vulnerability discussion

Transport Layer Security (TLS) encryption is a required security setting for a private web server. Encryption of private information is essential to ensuring data confidentiality. If private information is not encrypted, it can be intercepted and easily read by an unauthorized party. A private web server must use a FIPS 140-2-approved TLS version, and all non-FIPS-approved SSL versions must be disabled.FIPS 140-2-approved TLS versions include TLS V1.1 or greater. NIST SP 800-52 specifies the preferred configurations for government systems.

Check content

Note: If the server being reviewed is a private IIS 8.5 web server, this is Not Applicable. Follow the procedures below for each site hosted on the IIS 8.5 web server: Open the IIS 8.5 Manager. Click the site name. Double-click the "SSL Settings" icon. Verify "Require SSL" check box is selected. If the "Require SSL" check box is not selected, this is a finding.

Fix text

Note: If the server being reviewed is a private IIS 8.5 web server, this is Not Applicable. Follow the procedures below for each site hosted on the IIS 8.5 web server: Open the IIS 8.5 Manager. Click the site name. Double-click the "SSL Settings" icon. Select "Require SSL" check box. Select "Apply" from the "Actions" pane.

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.