title: CodeIgniter: OS Command Injection
body: <p>Is there a way in CodeIgniter to prevent OS command injection automatically? I am aware of all the other protection CI has, but cannot find any material about OS Command Injection.</p>
  
  <p><strong>EDIT after comments received:</strong></p>
  
  <p>We are developing a web app that we are developing, will be hosted inside a large internal network where they have strict security policies that we will need to adhere to. One of them is OS Command Injection protection. They are afraid that users will run OS Commands through input fields. Is this possible, and how do I prevent this?</p>