Vulnerability Monitor

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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

2018-06-27T19:29:00.233

Last Modified

2024-11-21T03:16:50.853

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-522
Type: Primary
CWE-327

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	beckhoff	twincat	3.0	Yes

References

https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf Mitigation, Vendor Advisory ([email protected])
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf Mitigation, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)