// For flags

CVE-2021-33539

WEIDMUELLER: WLAN devices affected by authentication bypass vulnerability

Severity Score

7.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In Weidmueller Industrial WLAN devices in multiple versions an exploitable authentication bypass vulnerability exists in the hostname processing. A specially configured device hostname can cause the device to interpret selected remote traffic as local traffic, resulting in a bypass of web authentication. An attacker can send authenticated SNMP requests to trigger this vulnerability.

En los dispositivos Weidmueller Industrial WLAN en múltiples versiones, se presenta una vulnerabilidad explotable de omisión de autenticación en el procesamiento del nombre de host. Un nombre de host del dispositivo especialmente configurado puede causar al dispositivo interpretar el tráfico remoto seleccionado como tráfico local, resultando en una omisión de la autenticación web. Un atacante puede enviar peticiones SNMP autenticadas para desencadenar esta vulnerabilidad

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-05-24 CVE Reserved
  • 2021-06-25 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
CAPEC
References (1)
URL Tag Source
https://cert.vde.com/en-us/advisories/vde-2021-026 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-eu Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-eu Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-eu
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-eu Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-eu Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-eu
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-us Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-us Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-us
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-us"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-us Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-us Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-us
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-us"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-eu Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-eu Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-eu
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-eu Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-eu Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-eu
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-us Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-us Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-us
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-us"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-us Firmware"
<= 1.16.18
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-us Firmware" and version " <= 1.16.18"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-us
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-us"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-eu Firmware"
<= 1.11.10
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-eu Firmware" and version " <= 1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-eu
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-eu Firmware"
<= v1.11.10
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-eu Firmware" and version " <= v1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-eu
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-us Firmware"
<= 1.11.10
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-us Firmware" and version " <= 1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-bl-ap-cl-us
Search vendor "Weidmueller" for product "Ie-wl-bl-ap-cl-us"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-us Firmware"
<= 1.11.10
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-us Firmware" and version " <= 1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-bl-ap-cl-us
Search vendor "Weidmueller" for product "Ie-wlt-bl-ap-cl-us"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-eu Firmware"
<= 1.11.10
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-eu Firmware" and version " <= 1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-eu
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-eu Firmware
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-eu Firmware"
<= 1.11.10
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-eu Firmware" and version " <= 1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-eu
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-eu"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-us Firmware"
<= 1.11.10
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-us Firmware" and version " <= 1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wl-vl-ap-br-cl-us
Search vendor "Weidmueller" for product "Ie-wl-vl-ap-br-cl-us"
--
Safe
Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-us Firmware
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-us Firmware"
<= 1.11.10
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-us Firmware" and version " <= 1.11.10"
-
Affected
in Weidmueller
Search vendor "Weidmueller"
Ie-wlt-vl-ap-br-cl-us
Search vendor "Weidmueller" for product "Ie-wlt-vl-ap-br-cl-us"
--
Safe