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CVE-2019-19279

Quick assessment

Affected
Siemens AG SIPROTEC 4 and SIPROTEC Compact relays equipped with EN100 Ethernet communication modules
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.

Siemens SIPROTEC 4和SIPROTEC Compact（搭载有EN100 Ethernet通信模块）中存在输入验证错误漏洞。攻击者可借助特制的数据包利用该漏洞导致拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 1.59% · P75

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-19279

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in SIPROTEC 4 and SIPROTEC Compact relays equipped with EN100 Ethernet communication modules (All versions). Specially crafted packets sent to port 50000/UDP of the EN100 Ethernet communication modules could cause a Denial-of-Service of the affected device. A manual reboot is required to recover the service of the device. At the time of advisory publication no public exploitation of this security vulnerability was known to Siemens.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIPROTEC 4和SIPROTEC Compact 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIPROTEC 4和SIPROTEC Compact（搭载有EN100 Ethernet通信模块）中存在输入验证错误漏洞。攻击者可借助特制的数据包利用该漏洞导致拒绝服务。
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
Siemens AG SIPROTEC 4 and SIPROTEC Compact relays equipped with EN100 Ethernet communication modules All versions -

II. Public POCs for CVE-2019-19279

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III. Intelligence Information for CVE-2019-19279

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Vendor Advisories for CVE-2019-19279 (1)

Same Patch Batch · Siemens AG · 2020-03-10 · 5 CVEs total

CVE-2019-18336 多款Siemens产品资源管理错误漏洞
CVE-2019-19277 Siemens SIPORT MP 安全漏洞
CVE-2019-19281 多款Siemens产品资源管理错误漏洞
CVE-2020-7579 Siemens Spectrum Power 跨站脚本漏洞

IV. Related Vulnerabilities

Same vendor: Siemens AG
Same weakness: CWE-20

V. Comments for CVE-2019-19279

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