CVSS: 5.3EPSS: 0%CPEs: 63EXPL: 0CVE-2020-12494 – Beckhoff: Etherleak in TwinCAT RT network driver
https://notcve.org/view.php?id=CVE-2020-12494
16 Jun 2020 — Beckhoff's TwinCAT RT network driver for Intel 8254x and 8255x is providing EtherCAT functionality. The driver implements real-time features. Except for Ethernet frames sent from real-time functionality, all other Ethernet frames sent through the driver are not padded if their payload is less than the minimum Ethernet frame size. Instead, arbitrary memory content is transmitted within in the padding bytes of the frame. Most likely this memory contains slices from previously transmitted or received frames. • https://cert.vde.com/en-us/advisories/vde-2020-019 • CWE-459: Incomplete Cleanup •
CVSS: 9.8EPSS: 2%CPEs: 4EXPL: 1CVE-2019-16871
https://notcve.org/view.php?id=CVE-2019-16871
19 Dec 2019 — 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. Los PLC Beckhoff Embedded Windows versiones hasta 3.1.4024.0 y Beckhoff Twincat sobre las estaciones de Windows Engineering, permiten a un atacante lograr una ejecución de código remota (como SYSTEM) por medio del protocolo ADS de Beckhoff. • https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2017-001.pdf • CWE-290: Authentication Bypass by Spoofing •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 1CVE-2019-5636 – Beckhoff TwinCAT Discovery Service Denial of Service
https://notcve.org/view.php?id=CVE-2019-5636
21 Nov 2019 — When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior). Cuando un Beckhoff TwinCAT Runtime recibe un paquete UDP con formato incorrecto, el servicio de descubrimiento de ADS se cierra. Tenga en cuenta que los dispositivos TwinCAT siguen funcionando normalmente. • https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed • CWE-404: Improper Resource Shutdown or Release •
CVSS: 5.9EPSS: 0%CPEs: 1EXPL: 0CVE-2017-16718
https://notcve.org/view.php?id=CVE-2017-16718
27 Jun 2018 — 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. • https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-522: Insufficiently Protected Credentials •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2018-7502
https://notcve.org/view.php?id=CVE-2018-7502
23 Mar 2018 — Kernel drivers in Beckhoff TwinCAT 3.1 Build 4022.4, TwinCAT 2.11 R3 2259, and TwinCAT 3.1 lack proper validation of user-supplied pointer values. An attacker who is able to execute code on the target may be able to exploit this vulnerability to obtain SYSTEM privileges. Los controladores del kernel en Beckhoff TwinCAT 3.1 Build 4022.4, TwinCAT 2.11 R3 2259 y TwinCAT 3.1 no validan correctamente los valores de puntero proporcionados por el usuario. Un atacante que pueda ejecutar código en el objetivo podría... • http://www.securityfocus.com/bid/103487 • CWE-20: Improper Input Validation CWE-822: Untrusted Pointer Dereference •