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V-241573

CAT II (Medium)

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

Rule ID

SV-241573r879511_rule

STIG

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

Version

V1R2

CCIs

CCI-000054

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-web-app/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-web-app/conf/server.xml.

Navigate to and locate <Executor>.

Configure the <Executor> with the value 'maxThreads= "300"'.

Note: The <Executor> node should be configured per the below:

        <Executor maxThreads="300"
                  minSpareThreads="50"
                  name="tomcatThreadPool"
                  namePrefix="tomcat-http--"/>