Weidmueller Patches Dozen Vulnerabilities in Industrial WLAN Devices


Germany-based industrial solutions provider Weidmueller on Wednesday informed customers that it has patched a dozen vulnerabilities affecting some of its industrial WLAN devices.

Weidmueller provides a wide range of connectivity, electronics, automation, assembly and workplace products to organizations worldwide, particularly in the machinery, energy, device manufacturing, transportation, process, and building infrastructure sectors.

Many vulnerabilities found in Weidmueller industrial WLAN devicesIn security advisories published on Wednesday by Weidmueller and Germany’s [email protected], which coordinates cybersecurity issues related to industrial automation, organizations were informed about 12 types of vulnerabilities discovered by the vendor in its industrial WLAN devices.

The security holes impact wireless access point/bridge/client devices running firmware versions prior to 1.16.21 (build 21010513) or 1.11.13 (build 21010513). Weidmüller has advised customers to install the latest firmware to secure their devices.

The vulnerabilities, tracked with the CVE identifiers CVE-2021-33528 through CVE-2021-33539, can be exploited for privilege escalation, decryption of traffic, arbitrary code/command execution, denial-of-service (DoS) attacks, and authentication bypass.

Exploitation of many of the flaws requires authentication — at least with low privileges — and it’s unclear if the authentication bypass vulnerability can be chained with the other vulnerabilities. Nevertheless, Weidmuller and [email protected] have rated each of the issues as high severity.

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Due to the fact that Weidmueller products are used all over the world, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) also released advisories for vulnerabilities in the company’s products in the past. However, CISA has yet to release an advisory for these flaws.

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Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

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