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CVE-2020-8472— ABB System 800xA Weak File Permissions - different products

Quick assessment

Affected
ABB OPC Server for AC 800M
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.

ABB OPCServer for AC800M等都是瑞士ABB公司的产品。ABB OPCServer for AC800M是一款适用于AC800M的OPC（OLE for Process Control）服务器。Control Builder M Professional是一款紧凑型控制构建器。MMSServer for AC800M是一款适用于AC800M的MMS（）服务器。 多款ABB产品中存在安全漏洞，该漏洞源于系统功能所使用的Windows文件夹允许低权限用户读取、修改并删除文件和应用程序文件。

CVSS 5.5 · Medium EPSS 0.28% · P19
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I. Basic Information for CVE-2020-8472

Vulnerability Information
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Vulnerability Title
ABB System 800xA Weak File Permissions - different products
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient folder permissions used by system functions in ABB System 800xA products OPCServer for AC800M (versions 6.0 and earlier) and Control Builder M Professional, MMSServer for AC800M, Base Software for SoftControl (version 6.1 and earlier) allow low privileged users to read, modify, add and delete system and application files. An authenticated attacker who successfully exploited the vulnerabilities could escalate his/her privileges, cause system functions to stop and to corrupt user applications.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5
Vulnerability Title
多款ABB产品安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ABB OPCServer for AC800M等都是瑞士ABB公司的产品。ABB OPCServer for AC800M是一款适用于AC800M的OPC（OLE for Process Control）服务器。Control Builder M Professional是一款紧凑型控制构建器。MMSServer for AC800M是一款适用于AC800M的MMS（）服务器。 多款ABB产品中存在安全漏洞，该漏洞源于系统功能所使用的Windows文件夹允许低权限用户读取、修改并删除文件和应用程序文件。
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
ABB OPC Server for AC 800M 6.0 and earlier -
ABB Control Builder M Professional 6.1 and earlier -
ABB MMS Server for AC 800M 6.1 and earlier -
ABB Base Software for SoftControl 6.1 and earlier -

II. Public POCs for CVE-2020-8472

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III. Intelligence Information for CVE-2020-8472

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Other References for CVE-2020-8472 (1)

IV. Related Vulnerabilities

Same product: OPC Server for AC 800M
Same vendor: ABB
Same weakness: CWE-732

V. Comments for CVE-2020-8472

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