tc Server API must limit the number of maximum concurrent connections permitted.

From VMware vRealize Operations Manager 6.x tc Server Security Technical Implementation Guide

Associated with: CCI-000054

SV-99429r1_rule tc Server API must limit the number of maximum concurrent connections permitted.

Vulnerability discussion

Resource exhaustion can occur when an unlimited number of concurrent requests are allowed on a website, facilitating a denial-of-service attack. Mitigating this kind of attack will include limiting the number of concurrent HTTP/HTTPS requests.Mitigating this kind of attack will include limiting the number of concurrent HTTP/HTTPS requests. Each incoming request requires a thread for the duration of that request. If more simultaneous requests are received than can be handled by the currently available request processing threads, additional threads will be created up to the value of the “maxThreads” attribute.

Check content

At the command prompt, execute the following command: grep maxThreads /usr/lib/vmware-vcops/tomcat-enterprise/conf/server.xml If the value of “maxThreads” is not “300” or is missing, this is a finding.

Fix text

Navigate to and open /usr/lib/vmware-vcops/tomcat-enterprise/conf/server.xml. Navigate to and locate . Configure the with the value 'maxThreads="300"'. Note: The node should be configured per the below:

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