The vCenter ESX Agent Manager service directory listings parameter must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-259025	VCEM-80-000137	SV-259025r960963_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. Ensuring that directory listing is disabled is one approach to mitigating the vulnerability. In Tomcat, directory listing is disabled by default but can be enabled via the "listings" parameter. Ensure this node is not present to have the default effect.

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. Ensuring that directory listing is disabled is one approach to mitigating the vulnerability. In Tomcat, directory listing is disabled by default but can be enabled via the "listings" parameter. Ensure this node is not present to have the default effect.

STIG	Date
VMware vSphere 8.0 vCenter Appliance ESX Agent Manager (EAM) Security Technical Implementation Guide	2024-07-11

Details

Check Text ( C-62765r934731_chk )
At the command prompt, run the following command: # xmllint --format /usr/lib/vmware-eam/web/webapps/eam/WEB-INF/web.xml \| sed 's/xmlns=".*"//g' \| xmllint --xpath '//param-name[text()="listings"]/parent::init-param' - Example result: XPath set is empty If the "listings" parameter is specified and is not "false", this is a finding. If the "listings" parameter does not exist, this is not a finding.

Check Text ( C-62765r934731_chk )

At the command prompt, run the following command:

# xmllint --format /usr/lib/vmware-eam/web/webapps/eam/WEB-INF/web.xml | sed 's/xmlns=".*"//g' | xmllint --xpath '//param-name[text()="listings"]/parent::init-param' -

Example result:

XPath set is empty

If the "listings" parameter is specified and is not "false", this is a finding.

If the "listings" parameter does not exist, this is not a finding.

Fix Text (F-62674r934732_fix)
Navigate to and open: /usr/lib/vmware-eam/web/webapps/eam/WEB-INF/web.xml Find and remove the entire block returned in the check. Example: listings true Restart the service with the following command: # vmon-cli --restart eam