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CVE-2019-18336

Quick assessment

Affected
Siemens AG SIMATIC S7-300 CPU family (incl. related ET200 CPUs and 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 S7-300 CPUs等都是德国西门子（Siemens）公司的产品。SIMATIC S7-300 CPUs是一款CPU（中央处理器）模块。SINUMERIK 840D sl是一套高级机床数控系统。SIMATIC TDC CP51M1是一款SIMATIC TDC自动化系统的工业以太网通信模块。 多款Siemens产品中存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。以下产品及版本受到影响：使用3.3.17之前版本固件的Sieme

AI Predicted 7.5 Difficulty: Easy EPSS 1.72% · P77

Affected Version Matrix 5

VendorProduct Version RangeStatus
Siemens AG SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) All versions < V3.X.17 affected
Siemens AG SIMATIC TDC CP51M1 All versions < V1.1.8 affected
Siemens AG SIMATIC TDC CPU555 All versions < V1.1.1 affected
Siemens AG SINUMERIK 840D sl All versions < V4.8.6 affected
All versions < V4.94 affected
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I. Basic Information for CVE-2019-18336

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 S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU555 (All versions < V1.1.1), SINUMERIK 840D sl (All versions < V4.8.6), SINUMERIK 840D sl (All versions < V4.94). Specially crafted packets sent to port 102/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.
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 S7-300 CPUs等都是德国西门子（Siemens）公司的产品。SIMATIC S7-300 CPUs是一款CPU（中央处理器）模块。SINUMERIK 840D sl是一套高级机床数控系统。SIMATIC TDC CP51M1是一款SIMATIC TDC自动化系统的工业以太网通信模块。 多款Siemens产品中存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。以下产品及版本受到影响：使用3.3.17之前版本固件的Sieme
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 S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) All versions < V3.X.17 -
Siemens AG SIMATIC TDC CP51M1 All versions < V1.1.8 -
Siemens AG SIMATIC TDC CPU555 All versions < V1.1.1 -
Siemens AG SINUMERIK 840D sl All versions < V4.8.6 -
Siemens AG SINUMERIK 840D sl All versions < V4.94 -

II. Public POCs for CVE-2019-18336

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III. Intelligence Information for CVE-2019-18336

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Vendor Advisories for CVE-2019-18336 (1)

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

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-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 product: SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)
Same vendor: Siemens AG
Same weakness: CWE-400

V. Comments for CVE-2019-18336

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