STIGQter STIGQter: STIG Summary: Microsoft IIS 10.0 Server Security Technical Implementation Guide Version: 3 Release: 7 Benchmark Date: 01 Apr 2026:

The IIS 10.0 web server must enable HTTP Strict Transport Security (HSTS).

DISA Rule

SV-218827r1192779_rule

Vulnerability Number

V-218827

Group Title

SRG-APP-000516-WSR-000174

Rule Version

IIST-SV-000205

Severity

CAT III

CCI(s)

Weight

10

Fix Recommendation

Using the Configuration Editor in the IIS Manager or Powershell:
Enable HSTS.
Set includeSubDomains to True.
Set max-age to a value greater than 0.
Set redirectHttpToHttps to True.

Check Contents

Note: If the server is hosting WSUS, this is not applicable.
Note: If the server is providing OCSP or CRL, and not otherwise hosting any content, this is not applicable.

Access the IIS 10.0 Web Server.
Open IIS Manager.
Click the IIS 10.0 web server name.
Open on Configuration Editor under Management.
For the Section, navigate to system.applicationHost/sites.
Expand siteDefaults and HSTS.
If enabled is not set to True, this is a finding.
If includeSubDomains is not set to True, this is a finding.
If max-age is not set to a value greater than 0, this is a finding.
If redirectHttpToHttps is not True, this is a finding.

If the website is behind a load balancer or proxy server, and HSTS enablement is handled there, this is not applicable.

If the version of Windows Server does not natively support HSTS, this is not a finding.

Vulnerability Number

V-218827

Documentable

False

Rule Version

IIST-SV-000205

Severity Override Guidance

Note: If the server is hosting WSUS, this is not applicable.
Note: If the server is providing OCSP or CRL, and not otherwise hosting any content, this is not applicable.

Access the IIS 10.0 Web Server.
Open IIS Manager.
Click the IIS 10.0 web server name.
Open on Configuration Editor under Management.
For the Section, navigate to system.applicationHost/sites.
Expand siteDefaults and HSTS.
If enabled is not set to True, this is a finding.
If includeSubDomains is not set to True, this is a finding.
If max-age is not set to a value greater than 0, this is a finding.
If redirectHttpToHttps is not True, this is a finding.

If the website is behind a load balancer or proxy server, and HSTS enablement is handled there, this is not applicable.

If the version of Windows Server does not natively support HSTS, this is not a finding.

Check Content Reference

M

Target Key

4052