Missing Integrity Check in Shelly TRV 20220811-152343/v2.1.8@5afc928c allows malicious users to create a backdoor by redirecting the device to an attacker-controlled machine which serves the manipulated firmware file. The device is updated with the manipulated firmware.
Weakness
The product does not validate or incorrectly validates the integrity check values or “checksums” of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Trv_firmware | Shelly | 2.1.8 (including) | 2.1.8 (including) |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/145.html
- https://cwe.mitre.org/data/definitions/463.html
- https://cwe.mitre.org/data/definitions/75.html