CVE-2017-16718 — MEDIUM (5.9)

Vulnerability 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.

CVSS Score

5.9

MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Beckhoff	Twincat	3.0

Related Weaknesses (CWE)

CWE-522 CWE-327

References

https://download.beckhoff.com/download/Document/product-security/Advisories/adviMitigationVendor Advisory
https://download.beckhoff.com/download/Document/product-security/Advisories/adviMitigationVendor Advisory

FAQ

What is CVE-2017-16718?

CVE-2017-16718 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 AD...

How severe is CVE-2017-16718?

CVE-2017-16718 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-16718?

Check the references section above for vendor advisories and patch information. Affected products include: Beckhoff Twincat.