Information
The vCenter Lookup service must enable "ENFORCE_ENCODING_IN_GET_WRITER".
GROUP ID: V-259068RULE ID: SV-259068r961863
Some clients try to guess the character encoding of text media when the mandated default of ISO-8859-1 should be used. Some browsers will interpret as UTF-7 when the characters are safe for ISO-8859-1. This can create the potential for a XSS attack. To defend against this, enforce_encoding_in_get_writer must be set to true.
Solution
Navigate to and open:
/usr/lib/vmware-lookupsvc/conf/catalina.properties
Update or remove the following line:
org.apache.catalina.connector.response.ENFORCE_ENCODING_IN_GET_WRITER=true
Restart the service with the following command:
vmon-cli --restart lookupsvc