An issue was discovered on Gemtek WRTM-127ACN 01.01.02.141 and WRTM-127x9 01.01.02.127 devices. The Monitor Diagnostic network page allows an authenticated attacker to execute a command directly on the target machine. Commands are executed as the root user (uid 0). (Even if a login is required, most routers are left with default credentials.)
The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Wrtm-127acn_firmware | Gemteks | 01.01.02.141 (including) | 01.01.02.141 (including) |
Developers often choose default values that leave the product as open and easy to use as possible out-of-the-box, under the assumption that the administrator can (or should) change the default value. However, this ease-of-use comes at a cost when the default is insecure and the administrator does not change it.