The DDNS update function in ADM fails to properly validate the hostname of the DDNS servers TLS/SSL certificate. Although the connection uses HTTPS, an improper validated TLS/SSL certificates allows a remote attacker can intercept the communication to perform a Man-in-the-Middle (MitM) attack, which may obtain the sensitive information of DDNS updating process, including the users account email, MD5 hashed password, and device serial number.This issue affects ADM: from 4.1.0 through 4.3.3.ROF1, from 5.0.0 through 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) |