Detections
Analytics

VCUI-70-000020 - vSphere UI must limit the number of allowed connections.

Information

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 can run out of system resources and negatively affect system availability.

Solution

Navigate to and open:

/usr/lib/vmware-vsphere-ui/server/conf/server.xml

Navigate to the <Connector> configured with port='${http.port}'.

Add or change the following value:

acceptCount='300'

Restart the service with the following command:

# vmon-cli --restart vsphere-ui

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_7-0_Y23M07_STIG.zip

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-5(1), CAT|II, CCI|CCI-001094, Rule-ID|SV-256797r889390_rule, STIG-ID|VCUI-70-000020, Vuln-ID|V-256797

Plugin: Unix

Control ID: 29a0bff9c4ace0385018ef09953e90a8bd90a45c52493177ea38dc3e3bea2804