cwe-77-command-injection

Prevent command injection in Java by replacing direct string concatenation into Runtime.exec with parameterized command arrays and input validation. This ensures user input is treated as arguments rather than executable shell commands.

CWE-77 is the improper neutralization of special elements used in a command, allowing attackers to execute unauthorized shell commands on the server via manipulated user input in Java applications.

Secure ProcessBuilder against arbitrary command execution by constructing commands using parameterized arrays instead of concatenated strings, ensuring user input cannot inject malicious system commands.

SAST tools can detect CWE-77 command injection vulnerabilities by identifying patterns where user input is directly incorporated into system commands executed via Runtime.exec or ProcessBuilder in Java.

The best way to remediate command injection vulnerabilities in Java is to utilize parameterized command arrays for Runtime.exec or ProcessBuilder and enforce strict input validation on user-provided data.

Concatenating user input into system commands causes security vulnerabilities because attackers can use special characters to append unauthorized shell commands, leading to arbitrary command execution on the server.