Use of unsanitized data to create processes
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ID: python-flask/os-system-unsanitized-data
Language: Python
Severity: Error
Category: Security
CWE: 78
Description
Use of unsanitized from incoming request to execute a command may lead to command injection. It is highly recommended that data is checked and sanitized before use.
Learn More
Non-Compliant Code Examples
import flask
import os
app = flask.Flask(__name__)
@app.route("/route/to/resource/<resource_id>")
def resource2(resource_id):
file1 = subprocess.call(resource_id)
file2 = subprocess.capture_output(f"/path/to/{resource_id}")
@app.route("/route/to/resource/<resource_id>")
def resource2(resource_id):
file4 = os.system("/path/to/{0}".format(resource_id))
os.system(request.remote_addr)
bla = os.system(request.foo)
@app.route("/route/to/resource")
def resource2():
resource_id = flask.request.args.get("resource_id")
subprocess.call(resource_id)
subprocess.run(["command", resource_id])
Compliant Code Examples
import flask
import os
app = flask.Flask(__name__)
@app.route("/route/to/resource/<resource_id>")
def resource2(resource_id):
file1 = subprocess.call(sanitize(resource_id))
file2 = subprocess.capture_output(f"/path/to/{sanitize(resource_id)}")
