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V-259025

CAT II (Medium)

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

Rule ID

SV-259025r960963_rule

STIG

VMware vSphere 8.0 vCenter Appliance ESX Agent Manager (EAM) Security Technical Implementation Guide

Version

V2R2

CCIs

CCI-000381

Discussion

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.

Check Content

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

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:

<init-param>
      <param-name>listings</param-name>
      <param-value>true</param-value>
</init-param>

Restart the service with the following command:

# vmon-cli --restart eam