CVE-2021-21778
Quick assessment
Affected
n/a MZ Automation"
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 lib60870是MZ Automation公司的基于 IEC 60870-5 协议的 lib60870 库。 MZ Automation lib60870 存在安全漏洞，该漏洞源于 2.2.0 版本的 ASDU 消息处理功能中存在拒绝服务漏洞。特制的网络请求可能会导致通信中断。攻击者可以发送未经身份验证的消息来触发此漏洞。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-21778
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A denial of service vulnerability exists in the ASDU message processing functionality of MZ Automation GmbH lib60870.NET 2.2.0. A specially crafted network request can lead to loss of communications. An attacker can send an unauthenticated message to trigger this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
MZ Automation lib60870 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MZ Automation lib60870是MZ Automation公司的基于 IEC 60870-5 协议的 lib60870 库。 MZ Automation lib60870 存在安全漏洞，该漏洞源于 2.2.0 版本的 ASDU 消息处理功能中存在拒绝服务漏洞。特制的网络请求可能会导致通信中断。攻击者可以发送未经身份验证的消息来触发此漏洞。
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" | MZ Automation GmbH lib60870.NET 2.2.0 | - |
|
II. Public POCs for CVE-2021-21778
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-21778 (1)
-
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1236 x_refsource_MISC
Same Patch Batch · n/a · 2021-08-25 · 38 CVEs total
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| CVE-2021-33882 | 6.8 MEDIUM | B. Braun SpaceCom2 访问控制错误漏洞 |
| CVE-2021-33884 | 6.5 MEDIUM | B.Braun SpaceCom2 代码问题漏洞 |
| CVE-2021-33883 | 5.9 MEDIUM | B. Braun SpaceCom2 安全漏洞 |
| CVE-2021-32995 | Horner Automation Cscape 缓冲区错误漏洞 | |
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| CVE-2021-40088 | Primekey Solutions PrimeKey EJBCA 安全漏洞 | |
| CVE-2021-40089 | Primekey Solutions PrimeKey EJBCA 安全漏洞 | |
| CVE-2021-40083 | Knot Resolver 安全漏洞 | |
| CVE-2021-40084 | opensysusers 代码注入漏洞 | |
| CVE-2021-3605 | Industrial Light And Magic（lim） OpenEXR 缓冲区错误漏洞 | |
| CVE-2021-21849 | GPAC Project Advanced Content 缓冲区错误漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2021-21778
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