VULNERABILITY INTELLIGENCE

CVE-2017-16718

CVSS score5.9 MEDIUM
EPSS probability0.42%
CISA KEVNot currently listed
Published2018-06-27
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

  • CWE-327: Use of a Broken or Risky Cryptographic Algorithm
  • CWE-522: Insufficiently Protected Credentials

Primary references