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CVE-2023-1617— Improper Authentication Mechanism in B&R VC4 Visualization

Quick assessment

Affected
B&R Industrial Automation B&R VC4
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

B&R Industrial Automation B&R VC4是奥地利贝加莱工业自动化（B&R Industrial Automation）公司的一种可视化系统。可用于创建线显示器或控制带有按键和/或触摸屏的集成或远程 XGA 显示器。 B&R Industrial Automation B&R VC4存在安全漏洞，该漏洞源于存在不正确身份验证漏洞，此漏洞可能允许未经身份验证的基于网络的攻击者绕过受影响设备上VC4可视化的身份验证机制。

CVSS 9.8 · Critical EPSS 0.72% · P52
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I. Basic Information for CVE-2023-1617

Vulnerability Information
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Vulnerability Title
Improper Authentication Mechanism in B&R VC4 Visualization
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
B&R Industrial Automation B&R VC4 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
B&R Industrial Automation B&R VC4是奥地利贝加莱工业自动化（B&R Industrial Automation）公司的一种可视化系统。可用于创建线显示器或控制带有按键和/或触摸屏的集成或远程 XGA 显示器。 B&R Industrial Automation B&R VC4存在安全漏洞，该漏洞源于存在不正确身份验证漏洞，此漏洞可能允许未经身份验证的基于网络的攻击者绕过受影响设备上VC4可视化的身份验证机制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
B&R Industrial Automation B&R VC4 3.* ~ 3.96.7 -

II. Public POCs for CVE-2023-1617

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III. Intelligence Information for CVE-2023-1617

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IV. Related Vulnerabilities

Same vendor: B&R Industrial Automation
Same weakness: CWE-287

V. Comments for CVE-2023-1617

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