Overview:
As can be seen in the following request / response example, the xml entity expansion attack can be performed, and this attack can send requests that exceed the existing memory and processor capacities, causing memory bottlenecks and preventing the service from running. 10kb more request is returned.
root@slife:~# git clone https://github.com/omurugur/Oracle_CTF_Web_XML_Entity_Exploit.git
root@slife:~# git clone git@github.com:omurugur/Oracle_CTF_Web_XML_Entity_Exploit.git