Vulnerability: Insecure Encryption Key Extraction in Beckhoff TwinCAT 3 ADS Protocol

CVE-2017-16718 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:N/A:N

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.

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