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CVE-2022-2971— MZ Automation libIEC61850 Access of Resource Using Incompatible Type ('Type Confusion')

Quick assessment

Affected
MZ Automation libIEC61850
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.

Mz Automation Libiec61850是Mz Automation公司的一个IEC 61850协议的开源库。 Mz Automation Libiec61850 存在安全漏洞，该漏洞源于其使用不兼容的类型访问资源，这可能允许攻击者使用恶意负载使服务器崩溃。

CVSS 8.6 · High EPSS 1.08% · P64

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-2971

Vulnerability Information
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Vulnerability Title
MZ Automation libIEC61850 Access of Resource Using Incompatible Type ('Type Confusion')
Source: CVE Program / CVE List V5
Vulnerability Description
MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) accesses a resource using an incompatible type, which could allow an attacker to crash the server with a malicious payload.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
Source: CVE Program / CVE List V5
Vulnerability Title
Mz Automation Libiec61850 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mz Automation Libiec61850是Mz Automation公司的一个IEC 61850协议的开源库。 Mz Automation Libiec61850 存在安全漏洞，该漏洞源于其使用不兼容的类型访问资源，这可能允许攻击者使用恶意负载使服务器崩溃。
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
MZ Automation libIEC61850 All ~ 1.4 -

II. Public POCs for CVE-2022-2971

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III. Intelligence Information for CVE-2022-2971

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Vendor Advisories for CVE-2022-2971 (1)

Same Patch Batch · MZ Automation · 2022-09-23 · 4 CVEs total

CVE-2022-2970 10.0 CRITICAL MZ Automation libIEC61850 Stack-Based Buffer Overflow
CVE-2022-2972 10.0 CRITICAL MZ Automation libIEC61850 Stack-Based Buffer Overflow
CVE-2022-2973 8.6 HIGH MZ Automation libIEC61850 NULL Pointer Dereference

IV. Related Vulnerabilities

Same product: libIEC61850
Same vendor: MZ Automation
Same weakness: CWE-843

V. Comments for CVE-2022-2971

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