CVE-2021-34578
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductWago 750-890\/040-000 Firmware
PublishedAug 31, 2021
First seenAug 31, 2021
Weakness typeCWE-287Improper authentication
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wago 750-890\/040-000_firmware | v ≤ fw07 | — |
| wago 750-890\/025-001_firmware | v ≤ fw07 | — |
| wago 750-890\/025-002_firmware | v ≤ fw07 | — |
| wago 750-890\/025-000_firmware | v ≤ fw07 | — |
| wago 750-832\/000-002_firmware | v ≤ fw07 | — |
| wago 750-362_firmware | v ≤ fw07 | — |
| wago 750-823_firmware | v ≤ fw07 | — |
| wago 750-832_firmware | v ≤ fw07 | — |
| wago 750-363_firmware | v ≤ fw07 | — |
| wago 750-862_firmware | v ≤ fw07 | — |
| wago 750-891_firmware | v ≤ fw07 | — |
| wago 750-893_firmware | v ≤ fw07 | — |
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