Beckhoff Embedded Windows PLC up to 3.1.4024.0 ADS Protocol input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.8$0-$5k0.00

A vulnerability was found in Beckhoff Embedded Windows PLC and Twincat on Windows Engineering Station up to 3.1.4024.0. It has been rated as very critical. This issue affects some unknown functionality of the component ADS Protocol Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Beckhoff Embedded Windows PLCs through 3.1.4024.0, and Beckhoff Twincat on Windows Engineering stations, allow an attacker to achieve Remote Code Execution (as SYSTEM) via the Beckhoff ADS protocol.

The weakness was disclosed 12/19/2019. The identification of this vulnerability is CVE-2019-16871 since 09/25/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/20/2019).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/25/2019 🔍
12/19/2019 +85 days 🔍
12/20/2019 +1 days 🔍
03/16/2024 +1548 days 🔍

Sourcesinfo

Advisory: ic4.be
Status: Not defined

CVE: CVE-2019-16871 (🔍)

Entryinfo

Created: 12/20/2019 08:50
Updated: 03/16/2024 07:39
Changes: 12/20/2019 08:50 (35), 12/20/2019 08:55 (17), 03/16/2024 07:39 (3)
Complete: 🔍

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