vSphere UI must set the welcome-file node to a default web page.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256799	VCUI-70-000022	SV-256799r889396_rule		Medium

Description
Enumeration techniques, such as URL parameter manipulation, rely on being able to obtain information about the web server's directory structure by locating directories without default pages. In this scenario, the web server will display to the user a listing of the files in the directory being accessed. By having a default hosted application web page, the anonymous web user will not obtain directory browsing information or an error message that reveals the server type and version. Ensuring every document directory has an "index.jsp" (or equivalent) file is one approach to mitigating the vulnerability.

Description

Enumeration techniques, such as URL parameter manipulation, rely on being able to obtain information about the web server's directory structure by locating directories without default pages. In this scenario, the web server will display to the user a listing of the files in the directory being accessed. By having a default hosted application web page, the anonymous web user will not obtain directory browsing information or an error message that reveals the server type and version. Ensuring every document directory has an "index.jsp" (or equivalent) file is one approach to mitigating the vulnerability.

STIG	Date
VMware vSphere 7.0 vCenter Appliance UI Security Technical Implementation Guide	2023-02-21

Details

Check Text ( C-60474r889394_chk )
At the command prompt, run the following command: # xmllint --format /usr/lib/vmware-vsphere-ui/server/conf/web.xml \| sed 's/xmlns=".*"//g' \| xmllint --xpath '/web-app/welcome-file-list' - Expected result: index.html index.htm index.jsp If the output of the command does not match the expected result, this is a finding.

Fix Text (F-60417r889395_fix)
Navigate to and open: /usr/lib/vmware-vsphere-ui/server/conf/web.xml Add the following section under the node: index.html index.htm index.jsp Restart the service with the following command: # vmon-cli --restart vsphere-ui