CVE-2017-16718 - CVE House
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Status published Medium CVE-2017-16718

Beckhoff TwinCAT 3 supports communication over ADS. ADS is a...

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Beckhoff TwinCAT
Vulnerable Versions:
Version 3

Timeline

Official Publish: June 27th, 2018
Last Modified: September 16th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

CWE-522

MITRE ATT&CK TTPs

T1552 Unsecured Credentials
Credential Access
T1555 Credentials from Password Stores
Credential Access
T1078 Valid Accounts
Persistence
T1021 Remote Services
Lateral Movement
T1098 Account Manipulation
Privilege Escalation