The primary defense is to avoid calling OS commands directly. Primary Defenses ¶ Defense Option 1: Avoid calling OS commands directly ¶ The problem is exacerbated if the compromised process does not follow the principle of least privileges and attacker-controlled commands end up running with special system privileges that increase the amount of damage. ![]() Now, both the Calculator application and the value test are displayed: When executed, it changes the meaning of the initial intended value. ![]() Insecure Direct Object Reference Preventionĭefense Option 1: Avoid calling OS commands directlyĭefense option 2: Escape values added to OS commands specific to each OSĭefense option 3: Parameterization in conjunction with Input Validationĭescription of Command Injection Vulnerability
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