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


Finding ID Version Rule ID IA Controls Severity
V-240727 VRAU-TC-000015 SV-240727r879511_rule Medium
Resource exhaustion can occur when an unlimited number of concurrent requests are allowed on a web site, facilitating a denial-of-service attack. Unless the number of requests is controlled, the web server can consume enough system resources to cause a system crash. 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.
VMware vRealize Automation 7.x tc Server Security Technical Implementation Guide 2023-10-03


Check Text ( C-43960r673923_chk )
At the command prompt, execute the following command:

grep maxThreads /etc/vcac/server.xml

If the value of "maxThreads" is not "1000" or is missing, this is a finding.
Fix Text (F-43919r673924_fix)
Navigate to and open /etc/vcac/server.xml.

Navigate to and locate .

Configure the with the value 'maxThreads="1000"'.

Note: The node should be configured per the following: