Beckhoff: Security Vulnerabilities
The IPC-Diagnostics package included in TwinCAT/BSD is vulnerable to a local denial-of-service attack by a low privileged attacker.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-08-27
The MPD package included in TwinCAT/BSD allows an authenticated, low-privileged local
attacker to induce a Denial-of-Service (DoS) condition on the daemon and execute code in
the context of user “root” via a crafted HTTP request.
CVSS Score
7.3
EPSS Score
0.002
Published
2024-08-27
The IPC-Diagnostics package included in TwinCAT/BSD is vulnerable to a local authentication bypass by a low privileged attacker.
CVSS Score
7.8
EPSS Score
0.0
Published
2024-08-27
The IPC-Diagnostics package in TwinCAT/BSD is susceptible to improper input neutralization by a low-privileged local attacker.
CVSS Score
7.3
EPSS Score
0.001
Published
2024-08-27
The package authelia-bhf included in Beckhoffs TwinCAT/BSD is prone to an open redirect that allows a remote unprivileged attacker to redirect a user to another site. This may have limited impact to integrity and does solely affect anthelia-bhf the Beckhoff fork of authelia.
CVSS Score
4.7
EPSS Score
0.002
Published
2023-12-14
TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traversal that allow administrators to create or delete any files on the system.
CVSS Score
6.5
EPSS Score
0.006
Published
2021-11-04
Incorrect Access Control in Beckhoff Automation GmbH & Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the "CE Remote Display Tool" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect.
CVSS Score
9.8
EPSS Score
0.005
Published
2021-07-23
TwinCAT OPC UA Server in versions up to 2.3.0.12 and IPC Diagnostics UA Server in versions up to 3.1.0.1 from Beckhoff Automation GmbH & Co. KG are vulnerable to denial of service attacks. The attacker needs to send several specifically crafted requests to the running OPC UA server. After some of these requests the OPC UA server is no longer responsive to any client. This is without effect to the real-time functionality of IPCs.
CVSS Score
5.3
EPSS Score
0.004
Published
2021-05-13
The default installation path of the TwinCAT XAR 3.1 software in all versions is underneath C:\TwinCAT. If the directory does not exist it and further subdirectories are created with permissions which allow every local user to modify the content. The default installation registers TcSysUI.exe for automatic execution upon log in of a user. If a less privileged user has a local account he or she can replace TcSysUI.exe. It will be executed automatically by another user during login. This is also true for users with administrative access. Consequently, a less privileged user can trick a higher privileged user into executing code he or she modified this way. By default Beckhoff’s IPCs are shipped with TwinCAT software installed this way and with just a single local user configured. Thus the vulnerability exists if further less privileged users have been added.
CVSS Score
7.3
EPSS Score
0.002
Published
2020-11-19
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. By this method, memory content is disclosed, however, an attacker can hardly control which memory content is affected. For example, the disclosure can be provoked with small sized ICMP echo requests sent to the device.
CVSS Score
5.3
EPSS Score
0.005
Published
2020-06-16
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