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The rhttpproxy must set a limit on established connections.


Finding ID Version Rule ID IA Controls Severity
V-240717 VCRP-67-000002 SV-240717r679664_rule Medium
The rhttpproxy client connections must be limited to preserve system resources and continue servicing connections without interruption. Without a limit set, the system would be vulnerable to a trivial denial-of-service attack where connections are created en masse and vCenter resources are entirely consumed. The rhttproxy comes configured with a tested and supported value that must be maintained.
VMware vSphere 6.7 RhttpProxy Security Technical Implementation Guide 2022-01-03


Check Text ( C-43950r679662_chk )
At the command prompt, execute the following command:

# xmllint --xpath '/config/vmacore/http/maxConnections' /etc/vmware-rhttpproxy/config.xml

Expected result:


If the output does not match the expected result, this is a finding.
Fix Text (F-43909r679663_fix)
Navigate to and open /etc/vmware-rhttpproxy/config.xml.

Locate the // block and configure as follows:


Restart the service for changes to take effect.

# vmon-cli --restart rhttpproxy