Command coming from incoming request

Docs > Code Analysis > Static Analysis Rules > Command coming from incoming request

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Metadata

ID: python-django/os-system-from-request

Language: Python

Severity: Error

Category: Security

Description

Execute a process using unsanitized and unvalidated user-inputs. The user data should be sanitized and validated before being used to launch a new process.

Learn More

CWE-20: Improper Input Validation

Non-Compliant Code Examples

import os

def execute_command(request):
    cmd = request.GET.get("cmd")
    print("foobar")
    os.system(cmd)

    bli = os.system(cmd)

Compliant Code Examples

import os
import shlex

def execute_command(request):
    cmd = request.GET.get("cmd")
    print("foobar")
    os.system(shlex.escape(cmd))