Description
Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation in protected environments. This protocol uses user configured routes, that can be edited remotely via ADS. This special command supports encrypted authentication with username/password. The encryption uses a fixed key, that could be extracted by an attacker. Precondition of the exploitation of this weakness is network access at the moment a route is added.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ICS-CERT | Beckhoff TwinCAT | Version 3 | — |