CVE-2017-16718

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.

• CWE-522
• CWE-327

• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdfMitigation, Vendor Advisory
• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdfMitigation, Vendor Advisory

Published

Jun 27, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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