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CVE-2021-34578

WAGO: Authentication Vulnerability in Web-Based Management

Published: Aug 31, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-287
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.9%
Top 44.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

This vulnerability allows an attacker who has access to the WBM to read and write settings-parameters of the device by sending specifically constructed requests without authentication on multiple WAGO PLCs in firmware versions up to FW07.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
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

PLCWAGOICS / OT / IoT
750-890\/040-000 firmwarewagoICS / OT / IoT
750-890\/025-001 firmwarewagoICS / OT / IoT
750-890\/025-002 firmwarewagoICS / OT / IoT
750-890\/025-000 firmwarewagoICS / OT / IoT
wagocommercialDEICS / OT / IoT
and 8 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://cert.vde.com/en-us/advisories/vde-2020-044
cert.vde.com

Timeline

Published
Aug 31, 2021
Last Updated
Nov 21, 2024

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