First published: Fri Jun 25 2021(Updated: )
In Weidmueller Industrial WLAN devices in multiple versions an exploitable privilege escalation vulnerability exists in the iw_console functionality. A specially crafted menu selection string can cause an escape from the restricted console, resulting in system access as the root user. 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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CVE-2021-33528 is a privilege escalation vulnerability in Weidmueller Industrial WLAN devices.
The severity of CVE-2021-33528 is critical with a CVSS score of 8.8.
An attacker can exploit CVE-2021-33528 by using a specially crafted menu selection string to escape from the restricted console and gain system access as the root user.
Multiple versions of Weidmueller Industrial WLAN devices are affected by CVE-2021-33528, including firmware versions up to and including 1.16.18 for various models.
To mitigate the vulnerability, it is recommended to update the affected devices to a patched version of the firmware provided by Weidmueller.