Details

A DoD private web site must utilize PKI as an authentication mechanism for web users. Information systems residing behind web servers requiring authorization based on individual identity shall use the identity provided by certificate-based authentication to support access control decisions. Not using client certificates allows an attacker unauthenticated access to private web sites.

Solution

1. Open the IIS Manager > Right click on the website being reviewed > Select Properties > Select the Directory Security tab.
2. Under the Secure communications area select the Edit button.
3. Select Require secure channel (SSL) and Require client certificates > Press OK.

Supportive Information

The following resource is also helpful.

• http://iasecontent.disa.mil/stigs/zip/July2015/U_IIS_6-0_V6R16_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: System and Communications Protection.This control applies to the following type of system Windows.

References

• 800-53|SC-8(1)
• CAT|II
• Rule-ID|SV-30046r1_rule
• STIG-ID|WG140_IIS6
• Vuln-ID|V-6531

Source

• Tenable.com/audits