PT-2018-6311 · Beckhoff · Beckhoff Twincat 3

Published 2018-06-27 · Updated 2019-10-09 · CVE-2017-16718

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Beckhoff TwinCAT 3 (affected versions not specified)

Description: The issue concerns the ADS protocol used by Beckhoff TwinCAT 3 for communication in industrial automation environments. ADS allows user-configured routes to be edited remotely, supporting encrypted authentication with username and password. However, the encryption utilizes a fixed key that could potentially be extracted by an attacker. Exploitation of this weakness requires network access at the moment a route is added.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Insufficiently Protected Credentials

Use of a Broken Cryptographic Algorithm

Weakness Enumeration

CWE-522

CWE-327

Related Identifiers

CVE-2017-16718

Affected Products

Beckhoff Twincat 3

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2017-16718 · Security Note
• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-16718 · Vendor Advisory