Flask debug mode
Description
This Flask web application has been configured to run with debug mode enabled. When debug mode is active, Flask exposes an interactive debugger that can be accessed through the web interface when errors occur. This debugger allows execution of arbitrary Python code on the server, presenting a critical security vulnerability. While the interactive debugger has limitations in forking environments commonly used in production, it still provides attackers with a direct mechanism to execute code on the server.
Remediation
Immediately disable debug mode in all production and publicly accessible environments. Ensure that debug mode is only enabled in local development environments that are not accessible from untrusted networks.
To disable debug mode, modify your Flask application configuration:
app = Flask(__name__) app.debug = False # Ensure debug is set to False # Or simply omit the debug setting, as it defaults to False app.run()
Alternatively, if using environment variables or configuration files:
# In your config file or environment variables DEBUG = False FLASK_DEBUG = 0
Verify that debug mode is disabled by checking application logs and ensuring that detailed error pages with interactive debuggers are not displayed when errors occur. Implement proper error handling and logging mechanisms that do not expose sensitive information to end users.