CVE-2024-41975
"The CODESYS Gateway enables communication between CODESYS runtimes and other clients, primarily the CODESYS Development System V3. It is usually installed as a part of the CODESYS Development System V3 setup and accessed locally by the CODESYS Development System. Due to an insecure standard configuration of the CODESYS Gateway, it is not only accessible locally, but also remotely by default."
"The CODESYS Gateway serves as a communication channel for various clients to CODESYS runtimes. By default, the CODESYS Gateway listens on all available network adapters on port 1217 and can therefore be accessed remotely. However, remote access to the CODESYS Gateway is only required in certain network configurations. Since the CODESYS Gateway is usually accessed locally, many users are unaware of this remote access option, which can enable scanning of and access to restricted PLC networks. Unauthenticated attackers can therefore search for PLCs, but the user management of the PLCs prevents the actual access to the PLCs – unless it is disabled. "
March 23, 2025
"The following products are affected in all versions before 3.5.21.0. • CODESYS Edge Gateway for Windows • CODESYS Gateway for Windows"
CVE-2024-41975
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3
"Update the following products to version 3.5.21.0. • CODESYS Edge Gateway for Windows • CODESYS Gateway for Windows "
Diego Giubertoni of Nozomi Networks
Curated and maintained by Nozomi Networks Labs, the Threat Intelligence™ service provides threat and vulnerability updates to Guardian, making it easy for IT/OT professionals to stay on top of current OT and IoT risks.
Learn more
“Threat actors love finding new ways to attack critical infrastructure. We love finding new ways to detect their malware before damage occurs.”
TRITON is the first known cyberattack that directly interacted with a Safety Instrumented System (SIS). Labs reverse engineered the TriStation suite of software and delivered a report and two free tools for security researchers. This research was presented at Black Hat USA 2018.
The Labs team reverse engineered the GreyEnergy malicious document (maldoc) that leads to the installation of the malware (backdoor) on a victim’s network. Project outcomes include a report, multiple blogs and two free tools for security researchers.
IEC Working Group 15 (WG15) is developing technology standards for secure-by-design power systems. Labs contributes to the standards and has demonstrated how they can be used to identify hard-to-detect cyberattacks. Research from this effort was presented at Black Hat USA 2019.
