CVE-2021-33534: WEIDMUELLER: WLAN devices affected by OS Command Injection vulnerability
First published: Fri Jun 25 2021(Updated: )
In Weidmueller Industrial WLAN devices in multiple versions an exploitable command injection vulnerability exists in the hostname functionality. A specially crafted entry to network configuration information can cause execution of arbitrary system commands, resulting in full control of the device. An attacker can send various requests while authenticated as a high privilege user to trigger this vulnerability.
Credit: info@cert.vde.com
| Affected Software | Affected Version | How 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 the vulnerability ID?
The vulnerability ID is CVE-2021-33534.
What is the severity of CVE-2021-33534?
The severity of CVE-2021-33534 is critical with a CVSS score of 7.2.
Which Weidmueller Industrial WLAN devices are affected by CVE-2021-33534?
Weidmueller Industrial WLAN devices with the following firmware versions are affected by CVE-2021-33534: Ie-wl-bl-ap-cl-eu Firmware up to version 1.16.18, Ie-wlt-bl-ap-cl-eu Firmware up to version 1.16.18, Ie-wl-bl-ap-cl-us Firmware up to version 1.16.18, Ie-wlt-bl-ap-cl-us Firmware up to version 1.16.18, Ie-wl-vl-ap-br-cl-eu Firmware up to version 1.16.18, Ie-wlt-vl-ap-br-cl-eu Firmware up to version 1.16.18, Ie-wl-vl-ap-br-cl-us Firmware up to version 1.16.18, Ie-wlt-vl-ap-br-cl-us Firmware up to version 1.16.18, Ie-wl-bl-ap-cl-eu Firmware up to version 1.11.10, Ie-wlt-bl-ap-cl-eu Firmware up to version 1.11.10, Ie-wl-bl-ap-cl-us Firmware up to version 1.11.10, Ie-wlt-bl-ap-cl-us Firmware up to version 1.11.10, Ie-wl-vl-ap-br-cl-eu Firmware up to version 1.11.10, Ie-wlt-vl-ap-br-cl-eu Firmware up to version 1.11.10, Ie-wl-vl-ap-br-cl-us Firmware up to version 1.11.10, Ie-wlt-vl-ap-br-cl-us Firmware up to version 1.11.10.
What is the vulnerability description of CVE-2021-33534?
CVE-2021-33534 is a command injection vulnerability in Weidmueller Industrial WLAN devices that allows an attacker to execute arbitrary system commands and gain full control of the device by manipulating the hostname configuration.
Is there a fix available for CVE-2021-33534?
A fix for CVE-2021-33534 is not mentioned in the provided information, so it is recommended to follow the guidance provided by Weidmueller or the vendor to mitigate the vulnerability.
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- vendor/weidmueller
- canonical/weidmueller ie-wl-bl-ap-cl-eu firmware
- version/weidmueller ie-wl-bl-ap-cl-eu firmware/1.16.18
- canonical/weidmueller ie-wl-bl-ap-cl-eu
- canonical/weidmueller ie-wlt-bl-ap-cl-eu firmware
- version/weidmueller ie-wlt-bl-ap-cl-eu firmware/1.16.18
- canonical/weidmueller ie-wlt-bl-ap-cl-eu
- canonical/weidmueller ie-wl-bl-ap-cl-us firmware
- version/weidmueller ie-wl-bl-ap-cl-us firmware/1.16.18
- canonical/weidmueller ie-wl-bl-ap-cl-us
- canonical/weidmueller ie-wlt-bl-ap-cl-us firmware
- version/weidmueller ie-wlt-bl-ap-cl-us firmware/1.16.18
- canonical/weidmueller ie-wlt-bl-ap-cl-us
- canonical/weidmueller ie-wl-vl-ap-br-cl-eu firmware
- version/weidmueller ie-wl-vl-ap-br-cl-eu firmware/1.16.18
- canonical/weidmueller ie-wl-vl-ap-br-cl-eu
- canonical/weidmueller ie-wlt-vl-ap-br-cl-eu firmware
- version/weidmueller ie-wlt-vl-ap-br-cl-eu firmware/1.16.18
- canonical/weidmueller ie-wlt-vl-ap-br-cl-eu
- canonical/weidmueller ie-wl-vl-ap-br-cl-us firmware
- version/weidmueller ie-wl-vl-ap-br-cl-us firmware/1.16.18
- canonical/weidmueller ie-wl-vl-ap-br-cl-us
- canonical/weidmueller ie-wlt-vl-ap-br-cl-us firmware
- version/weidmueller ie-wlt-vl-ap-br-cl-us firmware/1.16.18
- canonical/weidmueller ie-wlt-vl-ap-br-cl-us
- version/weidmueller ie-wl-bl-ap-cl-eu firmware/1.11.10
- version/weidmueller ie-wlt-bl-ap-cl-eu firmware/1.11.10
- version/weidmueller ie-wl-bl-ap-cl-us firmware/1.11.10
- version/weidmueller ie-wlt-bl-ap-cl-us firmware/1.11.10
- version/weidmueller ie-wl-vl-ap-br-cl-eu firmware/1.11.10
- version/weidmueller ie-wlt-vl-ap-br-cl-eu firmware/1.11.10
- version/weidmueller ie-wl-vl-ap-br-cl-us firmware/1.11.10
- version/weidmueller ie-wlt-vl-ap-br-cl-us firmware/1.11.10