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 have a global authorization rule configured to restrict access.

DISA Rule

SV-218825r1067593_rule

Vulnerability Number

V-218825

Group Title

SRG-APP-000516-WSR-000174

Rule Version

IIST-SV-000159

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Open the IIS 10.0 Manager.

Click the IIS 10.0 web server name.

Double-click the ".NET Authorization Rules" icon.

Alter the list as necessary to ensure "All Users" is set to "Allow" and "Anonymous Users" is set to "Deny".

Remove any other line items.

Check Contents

Note: If ASP.NET is not installed, this is Not Applicable.
Note: If the Server is hosting Microsoft SharePoint, this is Not Applicable.
Note: If the server is hosting WSUS, this is Not Applicable.
Note: If the server is hosting Exchange, this is Not Applicable.
Note: If the server is public facing, this is Not Applicable.
Note: If the website is behind a load balancer or proxy server, this is Not Applicable.

Open the IIS 10.0 Manager.
Click the IIS 10.0 web server name.
Double-click the ".NET Authorization Rules" icon.
Ensure "All Users" is set to "Allow", and "Anonymous Users" is set to "Deny", otherwise this is a finding.
If any other rules are present, this is a finding.

Vulnerability Number

V-218825

Documentable

False

Rule Version

IIST-SV-000159

Severity Override Guidance

Note: If ASP.NET is not installed, this is Not Applicable.
Note: If the Server is hosting Microsoft SharePoint, this is Not Applicable.
Note: If the server is hosting WSUS, this is Not Applicable.
Note: If the server is hosting Exchange, this is Not Applicable.
Note: If the server is public facing, this is Not Applicable.
Note: If the website is behind a load balancer or proxy server, this is Not Applicable.

Open the IIS 10.0 Manager.
Click the IIS 10.0 web server name.
Double-click the ".NET Authorization Rules" icon.
Ensure "All Users" is set to "Allow", and "Anonymous Users" is set to "Deny", otherwise this is a finding.
If any other rules are present, this is a finding.

Check Content Reference

M

Target Key

4052