CVE-2021-33533

high-risk
Published 2021-06-25

In Weidmueller Industrial WLAN devices in multiple versions an exploitable command injection vulnerability exists in the iw_webs functionality. A specially crafted iw_serverip parameter 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.

Do I need to act?

~
5.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (8)

Ie-Wl-Bl-Ap-Cl-Eu Firmware
Ie-Wlt-Bl-Ap-Cl-Eu Firmware
Ie-Wl-Bl-Ap-Cl-Us Firmware
Ie-Wlt-Bl-Ap-Cl-Us Firmware
Ie-Wl-Vl-Ap-Br-Cl-Eu Firmware
Ie-Wlt-Vl-Ap-Br-Cl-Eu Firmware
Ie-Wl-Vl-Ap-Br-Cl-Us Firmware
Ie-Wlt-Vl-Ap-Br-Cl-Us Firmware

Affected Vendors

Weidmueller

References (2)

Third Party Advisory https://cert.vde.com/en-us/advisories/vde-2021-026
Third Party Advisory https://cert.vde.com/en-us/advisories/vde-2021-026
53
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 9/34 · Low
Exposure 14/34 · Moderate