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IcscertCVE-2017-16726

HistoryJun 27, 2018 - 7:29 p.m.

CVE-2017-16726

2018-06-2719:29:00

CWE-285

CWE-326

icscert

web.nvd.nist.gov

beckhoff

twincat

vulnerability

ads

protocol

industrial automation

security

encryption

attacker

nvd

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

9.1

Confidence

High

EPSS

0.001

Percentile

43.6%

JSON

Beckhoff TwinCAT supports communication over ADS. ADS is a protocol for industrial automation in protected environments. ADS has not been designed to achieve security purposes and therefore does not include any encryption algorithms because of their negative effect on performance and throughput. An attacker can forge arbitrary ADS packets when legitimate ADS traffic is observable.

Affected configurations

Nvd

Node

beckhofftwincatMatch-

VendorProductVersionCPE
beckhofftwincat-cpe:2.3:a:beckhoff:twincat:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
beckhoff	twincat	-	cpe:2.3:a:beckhoff:twincat:-:::::::*

CNA Affected

[
  {
    "product": "Beckhoff TwinCAT",
    "vendor": "ICS-CERT",
    "versions": [
      {
        "status": "affected",
        "version": "Version 2, Version 3"
      }
    ]
  }
]

References

download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-001.pdf

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

9.1

Confidence

High

EPSS

0.001

Percentile

43.6%

JSON

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