The vCenter Perfcharts service xpoweredBy attribute must be disabled.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-259096SRG-APP-000141-AS-000095VCPF-80-000140SV-259096r960963_rule2024-07-112
Description
Individual connectors can be configured to display the Tomcat information to clients. This information can be used to identify server versions that can be useful to attackers for identifying vulnerable versions of Tomcat. Individual connectors must be checked for the xpoweredBy attribute to ensure they do not pass server information to clients. The default value for xpoweredBy is "false".
ℹ️ Check
At the command prompt, run the following command: # xmllint --xpath "//Connector/@xpoweredBy" /usr/lib/vmware-perfcharts/tc-instance/conf/server.xml Example result: XPath set is empty If the "xpoweredBy" parameter is specified and is not "false", this is a finding. If the "xpoweredBy" parameter does not exist, this is not a finding.
✔️ Fix
Navigate to and open: /usr/lib/vmware-perfcharts/tc-instance/conf/server.xml Navigate to the <Connector> node and remove the "xpoweredBy" attribute. Restart the service with the following command: # vmon-cli --restart perfcharts