Home » Moxa Switch: New security vulnerability! Vulnerability allows security measures to be circumvented

Moxa Switch: New security vulnerability! Vulnerability allows security measures to be circumvented

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Moxa Switch: New security vulnerability!  Vulnerability allows security measures to be circumvented

The BSI has published a current IT security notice for Moxa Switch. You can find out more about the affected systems and products as well as CVE numbers here on news.de.

The Federal Office for Security in Information Technology (BSI) reported a security advisory for Moxa Switch on February 26, 2024. The operating system BIOS/firmware and the product Moxa Switch are affected by the security gap.

The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: Moxa Security Advisories (Stand: 26.02.2024).

Safety notice for Moxa Switch – Risk: medium

Risk level: 3 (medium)
CVSS Base Score: 6,5
CVSS Temporal Score: 5,7
Remoteangriff: Ja

The Common Vulnerability Scoring System (CVSS) is used to assess the vulnerability of computer systems. The CVSS standard makes it possible to compare potential or actual security vulnerabilities based on various metrics in order to create a priority list for taking countermeasures. The attributes “none”, “low”, “medium”, “high” and “critical” are used to determine the severity levels of a vulnerability. The Base Score evaluates the requirements for an attack (including authentication, complexity, privileges, user interaction) and its consequences. The temporal score also takes changes over time in the danger situation into account. According to the CVSS, the threat of the current vulnerability is assessed as “medium” with a base score of 6.5.

Moxa Switch Bug: Vulnerability allows security measures to be bypassed

A switch is an active network device that forwards data packets on the Data Link Layer (Layer 2) of the OSI model.

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An authenticated attacker in the adjacent network area can exploit a vulnerability in Moxa Switch to bypass security measures.

The vulnerability is identified with the individual CVE (Common Vulnerabilities and Exposures) serial number. CVE-2024-0387 traded.

Systems affected by the security gap at a glance


Moxa Switch EDS-4000/G4000 Series firmware

General measures for dealing with IT vulnerabilities

Users of the affected applications should keep them up to date. When security gaps become known, manufacturers are required to fix them as quickly as possible by developing a patch or a workaround. If security patches are available, install them promptly. For information, consult the sources listed in the next section. These often contain further information about the latest version of the software in question as well as the availability of security patches or information about workarounds. If you have any further questions or uncertainties, please contact your responsible administrator. IT security managers should regularly check the sources mentioned to see whether a new security update is available.

Manufacturer information on updates, patches and workarounds

Here you will find further links with information about bug reports, security fixes and workarounds.

Moxa Security Advisories vom 2024-02-26 (26.02.2024)
For more information, see:

Version history of this security alert

This is the initial version of this IT security notice for Moxa Switch. If updates are announced, this text will be updated. You can see the changes made using the version history below.

02/26/2024 – Initial version

+++ Editorial note: This text was generated based on current BSI data and will be updated in a data-driven manner depending on the warning situation. We accept feedback and comments at [email protected]. +++

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Edited by kns


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