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CVE-2021-33539

WEIDMUELLER: WLAN devices affected by authentication bypass vulnerability

Published: Jun 25, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-287
NVD MITRE
7.2CVSSHIGH
EPSS Score
1.1%
Top 40.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287

Affected Products

ie-wl-bl-ap-cl-eu firmwareweidmuellerICS / OT / IoT
ie-wlt-bl-ap-cl-eu firmwareweidmuellerICS / OT / IoT
ie-wl-bl-ap-cl-us firmwareweidmuellerICS / OT / IoT
ie-wlt-bl-ap-cl-us firmwareweidmuellerICS / OT / IoT
ie-wl-vl-ap-br-cl-eu firmwareweidmuellerICS / OT / IoT
weidmuellercommercialDEICS / OT / IoTaka weidmuller
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://cert.vde.com/en-us/advisories/vde-2021-026
cert.vde.com

Timeline

Published
Jun 25, 2021
Last Updated
Nov 21, 2024

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