CVE-2021-34569
Critical
Description
In WAGO I/O-Check Service in multiple products an attacker can send a specially crafted packet containing OS commands to crash the diagnostic tool and write memory.
SeverityCritical
CVSS9.8
Exploit probability—
ProductWago 750-8100 Firmware
PublishedNov 9, 2022
First seenNov 9, 2022
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- wago 750-8100_firmware18 or later
- wago 750-8101_firmware18 or later
- wago 750-8101\/025-000_firmware18 or later
- wago 750-8102_firmware18 or later
- wago 750-8102\/025-000_firmware18 or later
- wago 750-8202_firmware18 or later
- wago 750-8202\/000-011_firmware18 or later
- wago 750-8202\/000-012_firmware18 or later
- wago 750-8202\/000-022_firmware18 or later
- wago 750-8202\/025-000_firmware18 or later
- wago 750-8202\/025-001_firmware18 or later
- wago 750-8202\/025-002_firmware18 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wago 750-8100_firmware | v < 18, 18 | 18 |
| wago 750-8101_firmware | v < 18, 18 | 18 |
| wago 750-8101\/025-000_firmware | v < 18, 18 | 18 |
| wago 750-8102_firmware | v < 18, 18 | 18 |
| wago 750-8102\/025-000_firmware | v < 18, 18 | 18 |
| wago 750-8202_firmware | v < 18, 18 | 18 |
| wago 750-8202\/000-011_firmware | v < 18, 18 | 18 |
| wago 750-8202\/000-012_firmware | v < 18, 18 | 18 |
| wago 750-8202\/000-022_firmware | v < 18, 18 | 18 |
| wago 750-8202\/025-000_firmware | v < 18, 18 | 18 |
| wago 750-8202\/025-001_firmware | v < 18, 18 | 18 |
| wago 750-8202\/025-002_firmware | v < 18, 18 | 18 |
| wago 750-8202\/040-000_firmware | v < 18, 18 | 18 |
| wago 750-8202\/040-001_firmware | v < 18, 18 | 18 |
| wago 752-8303\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4101_firmware | v < 18, 18 | 18 |
| wago 762-4102_firmware | v < 18, 18 | 18 |
| wago 762-4103_firmware | v < 18, 18 | 18 |
| wago 762-4104_firmware | v < 18, 18 | 18 |
| wago 762-4201\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-4202\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-4203\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-4204\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-4205\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-4205\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4206\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-4206\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4301\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4302\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4303\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4304\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4305\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-4306\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-5203\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-5204\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-5205\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-5206\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-5303\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-5304\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-5305\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-5306\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-6201\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-6202\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-6203\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-6204\/8000-001_firmware | v < 18, 18 | 18 |
| wago 762-6301\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-6302\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-6303\/8000-002_firmware | v < 18, 18 | 18 |
| wago 762-6304\/8000-002_firmware | v < 18, 18 | 18 |
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