The vCenter ESX Agent Manager service must enable "ENFORCE_ENCODING_IN_GET_WRITER".
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-259034 | VCEM-80-000152 | SV-259034r961863_rule | Medium |
| Description |
| 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. |
| STIG | Date |
| VMware vSphere 8.0 vCenter Appliance ESX Agent Manager (EAM) Security Technical Implementation Guide | 2024-12-16 |
Details
| Check Text (C-62774r934758_chk) |
| At the command line, run the following command: # grep ENFORCE_ENCODING_IN_GET_WRITER /etc/vmware-eam/catalina.properties Example result: org.apache.catalina.connector.response.ENFORCE_ENCODING_IN_GET_WRITER=true If "org.apache.catalina.connector.response.ENFORCE_ENCODING_IN_GET_WRITER" is not set to "true", this is a finding. If the "org.apache.catalina.connector.response.ENFORCE_ENCODING_IN_GET_WRITER" setting does not exist, this is not a finding. |
| Fix Text (F-62683r934759_fix) |
| Navigate to and open: /etc/vmware-eam/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 eam |