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CVE-2019-19281

Quick assessment

Affected
Siemens AG SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
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 SIMATIC S7-1500 CPU family是德国西门子（Siemens）公司的一款S7-1500系列的中央处理单元。 Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2、SIMATIC S7-1500 CPU系列和SIMATIC S7-1500 Software Controller中存在资源管理错误漏洞。攻击者可借助特制的UDP数据包利用该漏洞导致拒绝服务。以下产品及版本受到影响：Siemens SIMATIC ET

AI Predicted 7.5 Difficulty: Easy EPSS 1.68% · P76
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I. Basic Information for CVE-2019-19281

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
多款Siemens产品资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC S7-1500 CPU family是德国西门子（Siemens）公司的一款S7-1500系列的中央处理单元。 Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2、SIMATIC S7-1500 CPU系列和SIMATIC S7-1500 Software Controller中存在资源管理错误漏洞。攻击者可借助特制的UDP数据包利用该漏洞导致拒绝服务。以下产品及版本受到影响：Siemens SIMATIC ET
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 SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) All versions >= V2.5 and < V20.8 -
Siemens AG SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) All versions >= V2.5 and < V2.8 -
Siemens AG SIMATIC S7-1500 Software Controller All versions >= V2.5 and < V20.8 -

II. Public POCs for CVE-2019-19281

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III. Intelligence Information for CVE-2019-19281

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Vendor Advisories for CVE-2019-19281 (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-2019-19279 Siemens SIPROTEC 4和SIPROTEC Compact 输入验证错误漏洞
CVE-2020-7579 Siemens Spectrum Power 跨站脚本漏洞

IV. Related Vulnerabilities

Same vendor: Siemens AG
Same weakness: CWE-400

V. Comments for CVE-2019-19281

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