Performance Charts must limit the number of allowed connections.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-256629 | VCPF-70-000019 | SV-256629r888378_rule | CCI-001094 | medium |
| Description | ||||
| Limiting the number of established connections to Performance Charts is a basic denial-of-service protection. Servers where the limit is too high or unlimited could run out of system resources and negatively affect system availability. | ||||
| STIG | Date | |||
| VMware vSphere 7.0 vCenter Appliance Perfcharts Security Technical Implementation Guide | 2023-02-21 | |||
Details
Check Text (C-256629r888378_chk)
At the command prompt, run the following command:
# xmllint --xpath '/Server/Service/Connector/@acceptCount' /usr/lib/vmware-perfcharts/tc-instance/conf/server.xml
Expected result:
acceptCount="300"
If the output does not match the expected result, this is a finding.
Fix Text (F-60247r888377_fix)
Navigate to and open:
/usr/lib/vmware-perfcharts/tc-instance/conf/server.xml
Configure the <Connector> node with the value:
acceptCount="300"
Restart the service with the following command:
# vmon-cli --restart perfcharts