STIGQter: STIG Summary: Microsoft IIS 10.0 Site Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

The IIS 10.0 website must only accept client certificates issued by DoD PKI or DoD-approved PKI Certification Authorities (CAs).

DISA Rule

SV-218767r558649_rule

Vulnerability Number

V-218767

Group Title

SRG-APP-000427-WSR-000186

Rule Version

IIST-SI-000241

Severity

CAT II

CCI(s)

• CCI-002470 - The information system only allows the use of organization-defined certificate authorities for verification of the establishment of protected sessions.

Weight

10

Fix Recommendation

Follow the procedures below for each site hosted on the IIS 10.0 web server:

Open the IIS 10.0 Manager.

Click the Server name.

Double-click "Server Certificates".

Click "Import" under the "Actions" pane.

Browse to the DoD certificate location, select it, and click "OK".

Remove any non-DoD certificates if present.

Click on the site needing the certificate.

Select "Bindings" under the "Actions" pane.

Click on the binding needing a certificate and select "Edit", or add a site binding for HTTPS.

Assign the certificate to the website by choosing it under the "SSL Certificate" drop-down and clicking "OK".

Check Contents

Follow the procedures below for each site hosted on the IIS 10.0 web server:

Open the IIS 10.0 Manager.

Click the site name under review.

Click "Bindings" in the "Action" Pane.

Click the "HTTPS type" from the box.

Click "Edit".

Click "View" and then review and verify the certificate path.

If the list of CAs in the trust hierarchy does not lead to the DoD PKI Root CA, DoD-approved external certificate authority (ECA), or DoD-approved external partner, this is a finding.

If HTTPS is not an available type under site bindings, this is a finding.

If HTTPS is not an available type under site bindings, and the Web Server ONLY communicates directly with a load balancer/proxy server with IP address and Domain Restrictions in place, this is not a finding.

Vulnerability Number

V-218767

Documentable

False

Rule Version

IIST-SI-000241

Severity Override Guidance

Follow the procedures below for each site hosted on the IIS 10.0 web server:

Open the IIS 10.0 Manager.

Click the site name under review.

Click "Bindings" in the "Action" Pane.

Click the "HTTPS type" from the box.

Click "Edit".

Click "View" and then review and verify the certificate path.

If the list of CAs in the trust hierarchy does not lead to the DoD PKI Root CA, DoD-approved external certificate authority (ECA), or DoD-approved external partner, this is a finding.

If HTTPS is not an available type under site bindings, this is a finding.

If HTTPS is not an available type under site bindings, and the Web Server ONLY communicates directly with a load balancer/proxy server with IP address and Domain Restrictions in place, this is not a finding.

Check Content Reference

M

Target Key

4051

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