CVE-2021-34578

WAGO: Authentication Vulnerability in Web-Based Management

State: Published
Severity: 9.8 Critical
Published: Aug 31, 2021
Updated: Sep 16, 2024
Reserved: Jun 10, 2021

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CERTVDE

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
PLCWAGO	750-362 through FW07Affected 750-363 through FW07Affected 750-823 through FW07Affected 750-832/xxx-xxx through FW07Affected 750-862 through FW07Affected 750-891 through FW07Affected 750-890/xxx-xxx through FW07Affected 750-893 through FW07Affected

References

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

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.