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CVE-2021-22284— SECURITY - OPC Server for AC 800M - Remote Code Execution Vulnerability

Quick assessment

Affected
ABB 800xA, Control Software for AC 800M 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是瑞士ABB公司的一款适用于AC800M的OPC（OLE for Process Control）服务器。 ABB OPCServer for AC800M 存在安全漏洞，该漏洞源于软件存在关键资源权限分配错误，允许攻击者可利用该漏洞在运行AC800M OPC Server的节点上执行任意代码。

CVSS 8.4 · High EPSS 0.83% · P54
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I. Basic Information for CVE-2021-22284

Vulnerability Information
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Vulnerability Title
SECURITY - OPC Server for AC 800M - Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/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
ABB OPCServer for AC800M 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ABB OPCServer for AC800M是瑞士ABB公司的一款适用于AC800M的OPC（OLE for Process Control）服务器。 ABB OPCServer for AC800M 存在安全漏洞，该漏洞源于软件存在关键资源权限分配错误，允许攻击者可利用该漏洞在运行AC800M OPC Server的节点上执行任意代码。
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
ABB 800xA, Control Software for AC 800M OPC Server for AC 800M unspecified ~ 5.1.0-x -
ABB Control Builder Safe, version 1.x OPC Server for AC 800M 5.1.1-1 -
ABB Control Builder Safe, version 2.0 OPC Server for AC 800M 6.0.0-1 -
ABB Compact Product Suite - Control and I/O OPC Server for AC 800M unspecified ~ 5.1.0-x -

II. Public POCs for CVE-2021-22284

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III. Intelligence Information for CVE-2021-22284

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Other References for CVE-2021-22284 (1)

Same Patch Batch · ABB · 2022-02-04 · 4 CVEs total

CVE-2021-22285 7.5 HIGH SECURITY – Denial of Service Vulnerabilities in SPIET800 INFI-Net to Ethernet Transfer mod
CVE-2021-22286 7.5 HIGH SECURITY – Denial of Service Vulnerabilities in SPIET800 INFI-Net to Ethernet Transfer mod
CVE-2021-22288 7.5 HIGH SECURITY – Denial of Service Vulnerabilities in SPIET800 INFI-Net to Ethernet Transfer mod

IV. Related Vulnerabilities

Same vendor: ABB
Same weakness: CWE-732

V. Comments for CVE-2021-22284

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