CVE-2021-33532: WEIDMUELLER: WLAN devices affected by OS Command Injection vulnerability

Published Jun 25, 2021
·
Updated

In Weidmueller Industrial WLAN devices in multiple versions an exploitable command injection vulnerability exists in the iwwebs functionality. A specially crafted diagnostic script file name can cause user input to be reflected in a subsequent iwsystem call, resulting in remote control over the device. An attacker can send commands 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 the vulnerability ID of this Weidmueller Industrial WLAN vulnerability?

The vulnerability ID of this Weidmueller Industrial WLAN vulnerability is CVE-2021-33532.

2

What is the severity of CVE-2021-33532?

The severity of CVE-2021-33532 is critical, with a severity value of 8.8.

3

What software versions are affected by CVE-2021-33532?

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

4

What is the CWE category for CVE-2021-33532?

The CWE categories for CVE-2021-33532 are CWE-77 (Improper Neutralization of Special Elements used in a Command ('Command Injection')) and CWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')).

5

How can I fix CVE-2021-33532?

Apply the latest firmware update provided by Weidmueller to fix CVE-2021-33532.

Contact

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