CVE-2021-33533: WEIDMUELLER: WLAN devices affected by OS Command Injection vulnerability
In Weidmueller Industrial WLAN devices in multiple versions an exploitable command injection vulnerability exists in the iwwebs functionality. A specially crafted iwserverip parameter 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
Remediation
Information
Event History
Frequently Asked Questions
What is CVE-2021-33533?
CVE-2021-33533 is a command injection vulnerability in Weidmueller Industrial WLAN devices.
What is the severity of CVE-2021-33533?
CVE-2021-33533 has a severity rating of critical with a value of 8.8.
Which software versions are affected by CVE-2021-33533?
The affected software versions for CVE-2021-33533 are: Weidmueller Ie-wl-bl-ap-cl-eu Firmware up to version 1.16.18, Weidmueller Ie-wlt-bl-ap-cl-eu Firmware up to version 1.16.18, Weidmueller Ie-wl-bl-ap-cl-us Firmware up to version 1.16.18, Weidmueller Ie-wlt-bl-ap-cl-us Firmware up to version 1.16.18, Weidmueller Ie-wl-vl-ap-br-cl-eu Firmware up to version 1.16.18, Weidmueller Ie-wlt-vl-ap-br-cl-eu Firmware up to version 1.16.18, Weidmueller Ie-wl-vl-ap-br-cl-us Firmware up to version 1.16.18, Weidmueller Ie-wlt-vl-ap-br-cl-us Firmware up to version 1.16.18, Weidmueller Ie-wl-bl-ap-cl-eu Firmware up to version 1.11.10, Weidmueller Ie-wlt-bl-ap-cl-eu Firmware up to version 1.11.10, Weidmueller Ie-wl-bl-ap-cl-us Firmware up to version 1.11.10, Weidmueller Ie-wlt-bl-ap-cl-us Firmware up to version 1.11.10, Weidmueller Ie-wl-vl-ap-br-cl-eu Firmware up to version 1.11.10, Weidmueller Ie-wlt-vl-ap-br-cl-eu Firmware up to version 1.11.10, Weidmueller Ie-wl-vl-ap-br-cl-us Firmware up to version 1.11.10, Weidmueller Ie-wlt-vl-ap-br-cl-us Firmware up to version 1.11.10.
How does the command injection vulnerability in Weidmueller Industrial WLAN devices work?
The command injection vulnerability in Weidmueller Industrial WLAN devices occurs when a specially crafted iw_serverip parameter is used in the iw_webs functionality, allowing user input to be reflected in a subsequent iw_system call and resulting in remote control over the device.
What can an attacker do with the command injection vulnerability in Weidmueller Industrial WLAN devices?
With the command injection vulnerability in Weidmueller Industrial WLAN devices, an attacker can gain remote control over the device.
Is there a fix for CVE-2021-33533?
Currently, there is no information available about a fix for CVE-2021-33533. It is recommended to follow the recommendations provided by the vendor and apply any necessary updates or patches when they become available.