CVE-2023-1617 Improper Authentication Mechanism in B&R VC4 Visualization
Unauthenticated attackers can bypass authentication in B&R VC4 visualization modules, potentially accessing sensitive industrial control interfaces.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-1617?
CVE-2023-1617 is a critical authentication bypass vulnerability in B&R VC4, published on 14 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Authentication vulnerability in B&R Industrial Automation B&R VC4 (VNC-Server modules). This vulnerability may allow an unauthenticated network-based attacker to bypass the authentication mechanism of the VC4 visualization on affected devices. The impact of this vulnerability depends on the functionality provided in the visualization. This issue affects B&R VC4: from 3.* through 3.96.7, from 4.0* through 4.06.7, from 4.1* through 4.16.3, from 4.2* through 4.26.8, from 4.3* through 4.34.6, from 4.4* through 4.45.1, from 4.5* through 4.45.3, from 4.7* through 4.72.9.
Weakness: CWE-287
Which versions are affected by CVE-2023-1617?
It affects 1 product.
Products include Br-Automation Vc4.
How do I fix CVE-2023-1617?
No fix has been published for CVE-2023-1617 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-1617 being exploited?
There is no known exploitation of CVE-2023-1617 in the wild and no public exploit code.
Sources
Also known as GHSA-493h-rq8m-6xjp.