9.8
CRITICAL
CVE-2023-1617
B&R VC4 VNC-Server Unauthenticated Authentication Bypass
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.

INFO

Published Date :

April 14, 2023, 12:15 p.m.

Last Modified :

April 24, 2023, 1:21 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-1617 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Br-automation vc4
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-1617.

URL Resource
https://www.br-automation.com/downloads_br_productcatalogue/assets/1681046878970-en-original-1.0.pdf Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-1617 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-1617 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 24, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.br-automation.com/downloads_br_productcatalogue/assets/1681046878970-en-original-1.0.pdf No Types Assigned https://www.br-automation.com/downloads_br_productcatalogue/assets/1681046878970-en-original-1.0.pdf Vendor Advisory
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions up to (excluding) 3.96.8 *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (including) 4.06.4 *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions from (including) 4.10.0 up to (including) 4.16.3 *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions from (including) 4.20.0 up to (including) 4.26.8 *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions from (including) 4.30.0 up to (excluding) 4.34.7 *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions from (including) 4.40.0 up to (including) 4.45.1 *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions from (including) 4.50.0 up to (including) 4.53.0 *cpe:2.3:a:br-automation:vc4:*:*:*:*:*:*:*:* versions from (including) 4.70.0 up to (excluding) 4.73.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-1617 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.28 }} 0.01%

score

0.68916

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability