STIGQter STIGQter: STIG Summary: Microsoft IIS 10.0 Site Security Technical Implementation Guide Version: 2 Release: 16 Benchmark Date: 01 Jul 2026:

Mappings to unused and vulnerable scripts on the IIS 10.0 website must be removed.

DISA Rule

SV-218744r1135545_rule

Vulnerability Number

V-218744

Group Title

SRG-APP-000141-WSR-000082

Rule Version

IIST-SI-000215

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Open the IIS 10.0 Manager.

Click the site name under review.

Double-click "Handler Mappings".

Remove any script file extensions listed on the black list that are enabled.

Select "Apply" from the "Actions" pane.

Check Contents

Note: If the server being reviewed is hosting SharePoint, this is not applicable.

For Handler Mappings, the ISSO must document and approve all allowable scripts the website allows (whitelist) and denies (blacklist). The whitelist and blacklist will be compared to the Handler Mappings in IIS 10.0. Handler Mappings at the site level take precedence over Handler Mappings at the server level.

Open the IIS 10.0 Manager.

Click the site name under review.

Double-click "Handler Mappings".

If any script file extensions from the blacklist are enabled, this is a finding.

Vulnerability Number

V-218744

Documentable

False

Rule Version

IIST-SI-000215

Severity Override Guidance

Note: If the server being reviewed is hosting SharePoint, this is not applicable.

For Handler Mappings, the ISSO must document and approve all allowable scripts the website allows (whitelist) and denies (blacklist). The whitelist and blacklist will be compared to the Handler Mappings in IIS 10.0. Handler Mappings at the site level take precedence over Handler Mappings at the server level.

Open the IIS 10.0 Manager.

Click the site name under review.

Double-click "Handler Mappings".

If any script file extensions from the blacklist are enabled, this is a finding.

Check Content Reference

M

Target Key

4051