CVE-2021-33531: WEIDMUELLER: WLAN devices affected by Hard-coded Credentials vulnerability

Published Jun 25, 2021
·
Updated

In Weidmueller Industrial WLAN devices in multiple versions an exploitable use of hard-coded credentials vulnerability exists in multiple iw utilities. The device operating system contains an undocumented encryption password, allowing for the creation of custom diagnostic scripts. An attacker can send diagnostic scripts while authenticated as a low privilege user to trigger this vulnerability.

Affected Software

24 affected components
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

Remediation

Information

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.

Event History

Jun 25, 2021
CVE Published
via MITRE·06:25 PM
Data Sourced
via MITRE·06:25 PM
RemedyDescriptionSeverityWeakness
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Frequently Asked Questions

1

What is CVE-2021-33531?

CVE-2021-33531 is a vulnerability in Weidmueller Industrial WLAN devices that allows for the creation of custom diagnostic scripts using an undocumented encryption password.

2

How severe is CVE-2021-33531?

CVE-2021-33531 is classified as a critical vulnerability with a severity score of 8.8.

3

Which software versions are affected by CVE-2021-33531?

Multiple versions of Weidmueller Industrial WLAN devices firmware up to and including 1.16.18 are affected by CVE-2021-33531.

4

How can I fix CVE-2021-33531?

There is currently no known fix for CVE-2021-33531. It is recommended to follow the vendor's advisories and apply any patches or updates as they become available.

5

Where can I find more information about CVE-2021-33531?

You can find more information about CVE-2021-33531 on the VDE CERT website at the following link: https://cert.vde.com/en-us/advisories/vde-2021-026

Contact

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