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.
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.
The product uses a broken or risky cryptographic algorithm or protocol.
| Link | Tags |
|---|---|
| https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf | mitigation vendor advisory |