CVE-2020-12505 - CVE House
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Status published High CVE-2020-12505

WAGO: Vulnerability in web-based authentication in WAGO 750-8XX Version <= FW07

Vulnerability Description

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects: WAGO 750-852, WAGO 750-880/xxx-xxx, WAGO 750-881, WAGO 750-831/xxx-xxx, WAGO 750-882, WAGO 750-885/xxx-xxx, WAGO 750-889 in versions FW07 and below.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Maxim Rupp (https://rupp.it) reported this vulnerability to WAGO.
  • coordinated by CERT@VDE

References

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Affected Vendor

Affected Software

750-852, 750-880/xxx-xxx, 750-881, 750-831/xxx-xxx, 750-882, 750-885/xxx-xxx, 750-889
Vulnerable Versions:
unspecified

Timeline

Official Publish: September 30th, 2020
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Weaknesses (CWE)

CWE-306

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1078 Valid Accounts
Persistence
T1136 Create Account
Persistence
T1098 Account Manipulation
Privilege Escalation
T1021 Remote Services
Lateral Movement