high
7.5
CWE
798
Advisory Published
Updated

CVE-2021-33529: WEIDMUELLER: WLAN devices affected by Hard-coded Credentials vulnerability

First published: Wed Jun 23 2021(Updated: )

In Weidmueller Industrial WLAN devices in multiple versions the usage of hard-coded cryptographic keys within the service agent binary allows for the decryption of captured traffic across the network from or to the device.

Credit: info@cert.vde.com

Affected SoftwareAffected VersionHow to fix
Weidmueller Ie-wl-bl-ap-cl-eu Firmware<=1.16.18
Weidmueller Ie-wl-bl-ap-cl-eu
Weidmueller Ie-wlt-bl-ap-cl-eu Firmware<=1.16.18
Weidmueller Ie-wlt-bl-ap-cl-eu
Weidmueller Ie-wl-bl-ap-cl-us Firmware<=1.16.18
Weidmueller Ie-wl-bl-ap-cl-us
Weidmueller Ie-wlt-bl-ap-cl-us Firmware<=1.16.18
Weidmueller Ie-wlt-bl-ap-cl-us
Weidmueller Ie-wl-vl-ap-br-cl-eu Firmware<=1.16.18
Weidmueller Ie-wl-vl-ap-br-cl-eu
Weidmueller Ie-wlt-vl-ap-br-cl-eu Firmware<=1.16.18
Weidmueller Ie-wlt-vl-ap-br-cl-eu
Weidmueller Ie-wl-vl-ap-br-cl-us Firmware<=1.16.18
Weidmueller Ie-wl-vl-ap-br-cl-us
Weidmueller Ie-wlt-vl-ap-br-cl-us Firmware<=1.16.18
Weidmueller Ie-wlt-vl-ap-br-cl-us
Weidmueller Ie-wl-bl-ap-cl-eu Firmware<=1.11.10
Weidmueller Ie-wlt-bl-ap-cl-eu Firmware<=1.11.10
Weidmueller Ie-wl-bl-ap-cl-us Firmware<=1.11.10
Weidmueller Ie-wlt-bl-ap-cl-us Firmware<=1.11.10
Weidmueller Ie-wl-vl-ap-br-cl-eu Firmware<=1.11.10
Weidmueller Ie-wlt-vl-ap-br-cl-eu Firmware<=1.11.10
Weidmueller Ie-wl-vl-ap-br-cl-us Firmware<=1.11.10
Weidmueller Ie-wlt-vl-ap-br-cl-us Firmware<=1.11.10

Remedy

For IE-WL(T)-BL-AP-CL-XX versions V1.16.21 (Build 21010513) and greater are fixed. For IE-WL(T)-VL-AP-CL-XX versions V1.11.13 (Build 21010513) and greater are fixed.

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-33529?

    CVE-2021-33529 is a vulnerability found in Weidmueller Industrial WLAN devices that allows for the decryption of captured network traffic due to the usage of hard-coded cryptographic keys.

  • What is the severity of CVE-2021-33529?

    CVE-2021-33529 has a severity rating of 7.5 (high).

  • Which software versions are affected by CVE-2021-33529?

    Weidmueller Industrial WLAN devices with firmware versions up to and including 1.16.18 are affected.

  • How can I fix CVE-2021-33529?

    To fix CVE-2021-33529, it is recommended to update the firmware of the Weidmueller Industrial WLAN devices to a version higher than 1.16.18.

  • Are all Weidmueller Industrial WLAN devices vulnerable to CVE-2021-33529?

    No, not all Weidmueller Industrial WLAN devices are vulnerable to CVE-2021-33529. Only devices with firmware versions up to and including 1.16.18 are affected.

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