Denial of Service Vulnerabilities in System 800xA, Symphony® Plus IEC 61850

A vulnerability exists in the command handling of the IEC 61850 communication stack included in the product revisions listed as affected in this CVE. An attacker with access to IEC 61850 networks could exploit the vulnera bility by using a specially crafted 61850 packet, forcing the communication interfaces of the PM 877, CI850 and CI868 modules into fault mode or causing unavailability of the S+ Operations 61850 connectivity, resulting in a denial-of-service situation.  The System 800xA IEC61850 Connect is not affected. Note: This vulnerability does not impact on the overall availability and functionality of the S+ Operations node, only the 61850 communication function.     This issue affects AC800M (System 800xA): from 6.0.0x through 6.0.0303.0, from 6.1.0x through 6.1.0031.0, from 6.1.1x through 6.1.1004.0, from 6.1.1x through 6.1.1202.0, from 6.2.0x through 6.2.0006.0; Symphony Plus SD Series: A_0, A_1, A_2.003, A_3.005, A_4.001, B_0.005; Symphony Plus MR (Melody Rack): from 3.10 through 3.52; S+ Operations: 2.1, 2.2, 2.3, 3.3.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-1284

ABB多款产品 安全漏洞

ABB AC800M等都是瑞士ABB公司的产品。ABB AC800M是一款面向工业自动化系统的模块化过程控制器。ABB Symphony Plus SD Series是一系列面向工业过程控制与分布式控制系统的控制与I/O设备。ABB Symphony Plus MR是一系列面向工业过程控制与分布式控制系统的控制与I/O设备。 ABB多款产品存在安全漏洞，该漏洞源于IEC 61850通信栈命令处理问题，可能导致拒绝服务攻击。以下产品和版本受到影响：AC800M 6.0.0x至6.0.0303.0版本、6.1

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