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Vulnerability · Published Jun 25, 2021 · Assigned by CERTVDE

CVE-2021-33538WEIDMUELLER: WLAN devices affected by improper access control vulnerability

High 8.8

In plain English

A high-severity privilege mismanagement in IE-WL(T)-BL-AP-CL-XX from Weidmüller. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.0%top 35.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In Weidmueller Industrial WLAN devices in multiple versions an exploitable improper access control vulnerability exists in the iw_webs account settings functionality. A specially crafted user name entry can cause the overwrite of an existing user account password, resulting in remote shell access to the device as that user. An attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.

Affected products (as reported)

VendorProductVersions
Weidmüller IE-WL(T)-BL-AP-CL-XX IE-WL-BL-AP-CL-EU (2536600000) – through V1.16.18 (Build 18081617)IE-WLT-BL-AP-CL-EU (2536650000) – through V1.16.18 (Build 18081617)IE-WL-BL-AP-CL-US (2536660000) – through V1.16.18 (Build 18081617)IE-WLT-BL-AP-CL-US (2536670000) – through V1.16.18 (Build 18081617)
Weidmüller IE-WL(T)-VL-AP-CL-XX IE-WL-VL-AP-BR-CL-EU (2536680000) – through V1.11.10 (Build 18122616)IE-WLT-VL-AP-BR-CL-EU (2536690000) – through V1.11.10 (Build 18122616)IE-WL-VL-AP-BR-CL-US (2536700000) – through V1.11.10 (Build 18122616)IE-WLT-VL-AP-BR-CL-US (2536710000) – through V1.11.10 (Build 18122616)

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References