If the problem is that you do not have tools in place to roll code to dozens, hundreds, or thousands of VM's, write that tool, now. If the problem is that you don't have tools in place to securely run commands, or better, call sanctioned methods against dozens, hundreds, or thousands of VM's, write that tool now. If the problem is that you have code that exists on dozens, hundreds, or thousands of VM's that allows for the type of exploit you are contmplating, fix that code now!