STIGQter: STIG Summary: Microsoft IIS 8.5 Site Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

The IIS 8.5 private website have a server certificate issued by DoD PKI or DoD-approved PKI Certification Authorities (CAs).

DISA Rule

SV-214479r508659_rule

Vulnerability Number

V-214479

Group Title

SRG-APP-000427-WSR-000186

Rule Version

IISW-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 8.5 web server:

Open the IIS 8.5 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 8.5 web server:

Open the IIS 8.5 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.

For systems with load balancers that perform SSL offloading, this is Not Applicable.

Vulnerability Number

V-214479

Documentable

False

Rule Version

IISW-SI-000241

Severity Override Guidance

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 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.

For systems with load balancers that perform SSL offloading, this is Not Applicable.

Check Content Reference

M

Target Key

4001

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