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CVE-2022-43763— Lack of checking preconditions in APROL

Quick assessment

Affected
B&R Industrial Automation B&R APROL
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 APROL是奥地利贝加莱工业自动化（B&R Industrial Automation）公司的一个生产过程管理系统。 B&R Industrial Automation APROL R 4.2-07之前版本存在安全漏洞，该漏洞源于对前提条件检查不足，从而导致系统拒绝服务。

CVSS 7.5 · High EPSS 0.62% · P47

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-43763

Vulnerability Information
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Vulnerability Title
Lack of checking preconditions in APROL
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient check of preconditions could lead to Denial of Service conditions when calling commands on the Tbase server of B&R APROL versions < R 4.2-07.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加检查的返回值
Source: CVE Program / CVE List V5
Vulnerability Title
B&R Industrial Automation APROL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
B&R Industrial Automation APROL是奥地利贝加莱工业自动化（B&R Industrial Automation）公司的一个生产过程管理系统。 B&R Industrial Automation APROL R 4.2-07之前版本存在安全漏洞，该漏洞源于对前提条件检查不足，从而导致系统拒绝服务。
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 APROL < R 4.2-07 -

II. Public POCs for CVE-2022-43763

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III. Intelligence Information for CVE-2022-43763

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Other References for CVE-2022-43763 (1)

Same Patch Batch · B&R Industrial Automation · 2023-02-08 · 5 CVEs total

CVE-2022-43764 9.8 CRITICAL Buffer overflow when changing configuration on Tbase Server
CVE-2022-43761 9.4 CRITICAL Lack of authentication when managing APROL database
CVE-2022-43762 7.5 HIGH Memory leak when receiving messages in APROL Tbase server
CVE-2022-43765 7.5 HIGH DoS in APROLs Tbase server

IV. Related Vulnerabilities

Same product: B&R APROL
Same vendor: B&R Industrial Automation
Same weakness: CWE-252

V. Comments for CVE-2022-43763

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