Your application should not listen on all interfaces

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Metadata

ID: python-flask/listen-all-interfaces

Language: Python

Severity: Notice

Category: Security

CWE: 668

Description

Avoid giving access to your resources to all connected interfaces. Instead, bind the resources on a specific interface. Running the server on 0.0.0.0 exposes the server publicly.

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Non-Compliant Code Examples

#ruleid:avoid_app_run_with_bad_host
app.run(host="0.0.0.0")

#ruleid:avoid_app_run_with_bad_host
app.run("0.0.0.0")

Compliant Code Examples

#ruleid:avoid_app_run_with_bad_host
app.run(host="192.168.10.4")

#ruleid:avoid_app_run_with_bad_host
app.run("192.168.10.4")
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