Executing commands or loading libraries from an untrusted
					source or in an untrusted environment can cause an application to execute
					malicious commands (and payloads) on behalf of an
					attacker.Process control vulnerabilities take two forms: 1. An attacker can change
						the command that the program executes: the attacker explicitly controls what
						the command is. 2. An attacker can change the environment in which the
						command executes: the attacker implicitly controls what the command means.
						Process control vulnerabilities of the first type occur when either data
						enters the application from an untrusted source and the data is used as part
						of a string representing a command that is executed by the application. By
						executing the command, the application gives an attacker a privilege or
						capability that the attacker would not otherwise have.