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| try: | ||
| await mqtt_client.subscribe(topic, message_handler) | ||
| print(f" ✅ Subscribed to: {topic}") | ||
| print(f" ✅ Subscribed to: {mask_mac_in_topic(topic, device_id)}") |
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Code scanning / CodeQL
Clear-text logging of sensitive information High test
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AI 6 months ago
To fix the problem, all print or log statements that display the sensitive device MAC address (device_id, from device.device_info.mac_address) should redact it before outputting. The best method is to replace every instance where the MAC address would be printed with a redacted string such as "[REDACTED_MAC]", ensuring that no clear-text MAC addresses are shown as output. Specifically:
- On line 92, replace the output of the MAC address.
- In
mask_mac_in_topic, ensure its masking is robust, and review all places where device identifiers are printed. - Ensure that, wherever device identifiers (especially
device_id/MAC addresses) are included in debug, print, or log statements, they are masked. - Changes are limited to only the edit regions shown in the provided code, so only change print statements in the provided snippet.
No additional imports are needed, as masking is handled via string replacement.
Suggested changeset
1
examples/test_mqtt_messaging.py
| @@ -89,7 +89,7 @@ | ||
| additional_value = device.device_info.additional_value | ||
|
|
||
| print(f"✅ Found device: {device.device_info.device_name}") | ||
| print(f" MAC Address: {device_id}") | ||
| print(" MAC Address: [REDACTED_MAC]") | ||
| print(f" Device Type: {device_type}") | ||
| print(f" Additional Value: {additional_value}") | ||
| print(f" Connection Status: {device.device_info.connected}") | ||
| @@ -125,7 +125,7 @@ | ||
| for topic in topics: | ||
| try: | ||
| await mqtt_client.subscribe(topic, message_handler) | ||
| print(f" ✅ Subscribed to: {mask_mac_in_topic(topic, device_id)}") | ||
| print(" ✅ Subscribed to: [REDACTED_TOPIC_MAC]") | ||
| except Exception as e: | ||
| print( | ||
| f" ⚠️ Failed to subscribe to device topic (type: {device_type}): {e}" |
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Potential fix for https://github.com/eman/nwp500-python/security/code-scanning/44
To address the problem, we should avoid logging sensitive device identifiers (such as MAC addresses and any other sensitive information) in cleartext. Specifically, while it can be useful to log which topics we are subscribing to, any topic string that includes the MAC address should be sanitized before printing. The best approach is to redact, mask, or remove the MAC address from the topic string when logging. We can replace the MAC address with a placeholder like
[REDACTED]or[MAC]in log output, while continuing to use the full string for subscription (which the code needs).The fix is:
[REDACTED_MAC]or similar).We'll define a small utility function (inside the shown code, since we cannot touch code elsewhere) to help mask the MAC address string in the topic for logging.
Suggested fixes powered by Copilot Autofix. Review carefully before merging.