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.
References (1)
Core 1
Core References
Broken Link, Vendor Advisory x_refsource_confirm
https://www.br-automation.com/en/downloads/032020-multiple-vulnerabilities-in-automation-studio/
Scores
CVSS v3
6.5
EPSS
0.0052
EPSS Percentile
39.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Details
CWE
CWE-295
CWE-326
Status
published
Products (1)
br-automation/automation_studio
4.0 - 4.0.29.87
Published
Apr 29, 2020
Tracked Since
Feb 18, 2026