Skip to main content

750 362 Firmware CVE-2021-34578

HIGH
Improper Authentication (CWE-287)
2021-08-31 info@cert.vde.com
Authentication Bypass 750 362 Firmware 750 363 Firmware 750 823 Firmware 750 832 Firmware 750 862 Firmware 750 891 Firmware 750 893 Firmware 750 890 040 000 Firmware 750 890 025 001 Firmware 750 890 025 002 Firmware 750 890 025 000 Firmware 750 832 000 002 Firmware Wago
8.1
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Aug 31, 2021 - 11:15 nvd
HIGH 8.1

DescriptionNVD

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.

AnalysisAI

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. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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. Affected products include: Wago 750-890\/040-000 Firmware, Wago 750-890\/025-001 Firmware, Wago 750-890\/025-002 Firmware, Wago 750-890\/025-000 Firmware, Wago 750-832\/000-002 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

More in 750 362 Firmware

View all
CVE-2018-16210 MEDIUM POC
6.1 Oct 12

WAGO 750-88X and WAGO 750-89X Ethernet Controller devices, versions 01.09.18(13) and before, have XSS in the SNMP config
CVE-2020-12506 CRITICAL
9.1 Sep 30

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW03 allows an attacker to change the se
CVE-2023-1150 HIGH
7.5 Jun 26

Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS

Same weakness CWE-287 – Improper Authentication

View all
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2020-0688 HIGH POC
8.8
CVE-2023-46805 HIGH POC
8.2
CVE-2023-35078 CRITICAL POC
9.8
CVE-2015-1187 CRITICAL POC
9.8
CVE-2024-7593 CRITICAL POC
9.8
CVE-2017-7921 CRITICAL POC
9.8

Same technique Authentication Bypass

View all
CVE-2023-22515 CRITICAL POC
9.8
CVE-2012-4681 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3
CVE-2023-46805 HIGH POC
8.2

Share

CVE-2021-34578 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy