First published: Fri Jun 25 2021(Updated: )
In Weidmueller Industrial WLAN devices in multiple versions an exploitable command injection vulnerability exists in the iw_webs functionality. A specially crafted diagnostic script file name can cause user input to be reflected in a subsequent iw_system call, resulting in remote control over the device. An attacker can send commands while authenticated as a low 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 |
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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The vulnerability ID of this Weidmueller Industrial WLAN vulnerability is CVE-2021-33532.
The severity of CVE-2021-33532 is critical, with a severity value of 8.8.
The Weidmueller Industrial WLAN devices with firmware versions up to 1.16.18 are affected.
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')).
Apply the latest firmware update provided by Weidmueller to fix CVE-2021-33532.