Lookup Service must limit the number of allowed connections.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-256724 | VCLU-70-000019 | SV-256724r888763_rule | CCI-001094 | medium |
| Description | ||||
| Limiting the number of established connections is a basic denial-of-service protection and a best practice. 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 Lookup Service Security Technical Implementation Guide | 2023-06-15 | |||
Details
Check Text (C-256724r888763_chk)
At the command prompt, run the following command:
# xmllint --xpath '/Server/Service/Connector[@port="${bio-custom.http.port}"]/@acceptCount' /usr/lib/vmware-lookupsvc/conf/server.xml
Expected result:
acceptCount="100"
If the output does not match the expected result, this is a finding.
Fix Text (F-60342r888762_fix)
Navigate to and open:
/usr/lib/vmware-lookupsvc/conf/server.xml
Navigate to the <Connector> configured with port="${bio-custom.http.port}".
Add or change the following value:
acceptCount="100"
Restart the service with the following command:
# vmon-cli --restart lookupsvc