The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the devices WAN IP address. An unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to spoof the response, leading the device to update its DDNS record with an incorrect IP address. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.
Weakness
The product does not validate, or incorrectly validates, a certificate.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Data_master | Asustor | 4.1.0.rhu2 (including) | 4.3.3.rof1 (including) |
| Data_master | Asustor | 5.0.0.ra82 (including) | 5.1.2.re51 (excluding) |