Vulnerability in Beckhoff Twincat
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Beckhoff Twincat — versions 3.0
- Ics-Cert Beckhoff Twincat — versions Version 3
Weakness classification (CWE)
References
- download.beckhoff.com/download/Document/product-security/Advisories/advisory-20… (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-16718?
- CVE-2017-16718 is a medium-severity vulnerability in Beckhoff Twincat, classified under Insufficiently Protected Credentials. CVSS score: 5.9/10. Published 2018-06-27.
- How severe is CVE-2017-16718?
- Medium severity. CVSS v3 base score is 5.9 out of 10.