Description
A missing secure communication definition and an incomplete TLS validation in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.5SP, < 4.6.4 and < 4.7.2 enable unauthenticated users to perform MITM attacks via the B&R upgrade server.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| B&R | Automation Studio | 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.5SP, < 4.6.3SP, < 4.7.2 | — |
Advisories 1
- ICSA-20-093-01 B&R Automation Studio CISA ICS & IT advisories · Apr 2, 2020