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CVE-2022-43764— Buffer overflow when changing configuration on Tbase Server

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，该漏洞源于对输入的参数验证不足，从而导致缓冲区溢出。攻击者利用该漏洞可以执行任意代码。

CVSS 9.8 · Critical EPSS 0.78% · P54
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I. Basic Information for CVE-2022-43764

Vulnerability Information
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Vulnerability Title
Buffer overflow when changing configuration on Tbase Server
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient validation of input parameters when changing configuration on Tbase server in B&R APROL versions < R 4.2-07 could result in buffer overflow. This may lead to Denial-of-Service conditions or execution of arbitrary code.
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
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
B&R Industrial Automation APROL 缓冲区错误漏洞
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，该漏洞源于对输入的参数验证不足，从而导致缓冲区溢出。攻击者利用该漏洞可以执行任意代码。
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-2022-43764

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III. Intelligence Information for CVE-2022-43764

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Other References for CVE-2022-43764 (1)

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

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-2022-43763 7.5 HIGH Lack of checking preconditions in APROL
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-121

V. Comments for CVE-2022-43764

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