CVE-2023-1617

Critical

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductBr-automation Vc4
PublishedApr 14, 2023
First seenApr 14, 2023

How to fix

Update
  • br-automation vc43.96.8, 4.34.7, 4.73.0 or later

Affected products

ProductAffected versionsFixed in
br-automation vc4v < 3.96.8, 4.0.0 ≤ v ≤ 4.06.4, 4.10.0 ≤ v ≤ 4.16.3, 4.20.0 ≤ v ≤ 4.26.8, 4.30.0 ≤ v < 4.34.7, 4.40.0 ≤ v ≤ 4.45.1, 4.50.0 ≤ v ≤ 4.53.0, 4.70.0 ≤ v < 4.73.03.96.8, 4.34.7, 4.73.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.