Avoid command injection

Docs > Code Analysis > Static Analysis Rules > Avoid command injection

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Metadata

ID: javascript-node-security/command-injection

Language: JavaScript

Severity: Warning

Category: Security

CWE: 78

Description

When executing a command, never use unchecked variables. Make sure that each variable in the command has been checked.

Non-Compliant Code Examples

childprocess.exec(`mv ${src} ${dst}`, (error, stdout, stderr) => {});
childprocess.exec('mv ' + src + " " + dst, (error, stdout, stderr) => {});

Compliant Code Examples

childprocess.exec('mv /tmp/src /tmp/dst', (error, stdout, stderr) => {});

How to use this rule

1
2
rulesets:
  - javascript-node-security     # Rules to enforce JavaScript node security.

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