Command Injection — CompTIA CySA+ (CS0-003) Practice Questions
Command injection is a vulnerability class in which attacker-supplied input is passed unsanitized to an operating system shell or interpreter, allowing arbitrary commands to be executed with the privileges of the application process. CySA+ candidates are expected to identify command injection vulnerabilities through log analysis and web application testing, understand how they arise from improper separation of data and control, and recommend mitigations including strict input validation, use of safe APIs, and least-privilege process execution. The CS0-003 exam covers command injection alongside other injection flaws as part of web application and software security assessment. Successful exploitation can result in full system compromise, making it one of the more severe vulnerability categories an analyst may encounter.