CVE-2019-19101 Incomplete communication encryption and validation in B&R Automation Studio upgrade service
Incomplete TLS validation in B&R Automation Studio allows unauthenticated attackers to perform man-in-the-middle attacks on the upgrade service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-19101?
CVE-2019-19101 is a medium-severity vulnerability in B&R Automation Studio, published on 29 Apr 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2019-19101?
It affects 1 product.
Products include Br-Automation Automation Studio.
How do I fix CVE-2019-19101?
No fix has been published for CVE-2019-19101 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-19101 being exploited?
There is no known exploitation of CVE-2019-19101 in the wild and no public exploit code.
Other vulnerabilities in B&R Automation Studio
- CVE-2024-0220 B&R products use insufficient communication encryption
- CVE-2021-22282 RCE in B&R Automation Studio with crafted project files
- CVE-2020-24681 Automation Studio and PVI Multiple incorrect permission assignments for services
- CVE-2019-19100 Privilege escalation via B&R Automation Studio upgrade service
- CVE-2021-22280 DLL Hijacking Vulnerability in Automation Studio
Sources
Also known as GHSA-xfj2-8v99-wp6x.