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I. Basic Information for CVE-2021-37205
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V21.9 < V21.9.4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions >= V4.5.0 < V4.5.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.9.2 < V2.9.4), SIMATIC S7-1500 Software Controller (All versions >= V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions >= V4.0 < V4.0 SP1), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packets over port 102/tcp. A restart of the affected device is needed to restore normal operations.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens SIMATIC S7-1500 系列产品输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens RUGGEDCOM是德国西门子（Siemens）公司的一个通信设备。为电力，交通，石油和天然气及其他行业提供快速可靠的通信。 Siemens SIMATIC S7-1500 CPU和SIMATIC S7-1500 存在输入验证错误漏洞，该漏洞源于产品在处理Prepared Packets时发生严重错误。攻击者可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
VendorProductAffected VersionsCPESubscribe
SiemensSIMATIC Drive Controller family All versions >= V2.9.2 < V2.9.4 -
SiemensSIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) All versions >= V21.9 < V21.9.4 -
SiemensSIMATIC S7-1200 CPU family (incl. SIPLUS variants) All versions >= V4.5.0 < V4.5.2 -
SiemensSIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) All versions >= V2.9.2 < V2.9.4 -
SiemensSIMATIC S7-1500 Software Controller All versions >= V21.9 < V21.9.4 -
SiemensSIMATIC S7-PLCSIM Advanced All versions >= V4.0 < V4.0 SP1 -
SiemensSIPLUS TIM 1531 IRC All versions < V2.3.6 -
SiemensTIM 1531 IRC All versions < V2.3.6 -
II. Public POCs for CVE-2021-37205
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III. Intelligence Information for CVE-2021-37205
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New Vulnerabilities
Product: SIMATIC Drive Controller family
Vendor: Siemens
Same weakness: CWE-401
V. Comments for CVE-2021-37205

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