Directory Browsing on the IIS 10.0 web server must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-218808	IIST-SV-000138	SV-218808r561041_rule		Medium

Description
Directory browsing allows the contents of a directory to be displayed upon request from a web client. If directory browsing is enabled for a directory in IIS, users could receive a web page listing the contents of the directory. If directory browsing is enabled, the risk of inadvertently disclosing sensitive content is increased.

STIG	Date
Microsoft IIS 10.0 Server Security Technical Implementation Guide	2021-12-10

Details

Check Text ( C-20280r310899_chk )
Open the IIS 10.0 Manager. Click the IIS 10.0 web server name. Double-click the "Directory Browsing" icon. Under the “Actions” pane verify "Directory Browsing" is disabled. If “Directory Browsing” is not disabled, this is a finding.

Fix Text (F-20278r310900_fix)
Open the IIS 10.0 Manager. Click the IIS 10.0 web server name. Double-click the "Directory Browsing" icon. Under the "Actions" pane click "Disabled". Under the "Actions" pane, click "Apply".