CVE-2021-37204
Quick assessment
Affected
Siemens SIMATIC Drive Controller family
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 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。
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I. Basic Information for CVE-2021-37204
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 Drive Controller family (All versions < V2.9.2), SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V21.9 < V21.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), 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), 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), SIMATIC S7-1500 Software Controller (All versions >= V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), 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 packet over port 102/tcp. A restart of the affected device is needed to restore normal operations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在过期或释放后对资源进行操作
Source: CVE Program / CVE List V5
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
II. Public POCs for CVE-2021-37204
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-37204 (1)
Same Patch Batch · Siemens · 2022-02-09 · 23 CVEs total
| CVE-2021-37205 | 7.5 HIGH | Siemens SIMATIC S7-1500 系列产品输入验证错误漏洞 |
| CVE-2021-37185 | 7.5 HIGH | Siemens SIMATIC S7-1500 系列产品输入验证错误漏洞 |
| CVE-2021-46153 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2022-23312 | Siemens Spectrum Power 跨站脚本漏洞 | |
| CVE-2022-23102 | Siemens SINEMA Remote Connect Server 输入验证错误漏洞 | |
| CVE-2021-46161 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46160 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46159 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46158 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46157 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46156 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46155 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46154 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-46152 | Siemens Simcenter Femap 安全漏洞 | |
| CVE-2021-46151 | Siemens Simcenter Femap 缓冲区错误漏洞 | |
| CVE-2021-45106 | Siemens Sicam Toolbox II 信任管理问题漏洞 | |
| CVE-2021-44018 | 多款Siemens产品缓冲区错误漏洞 | |
| CVE-2021-44016 | 多款Siemens产品缓冲区错误漏洞 | |
| CVE-2021-44000 | 多款Siemens产品缓冲区错误漏洞 | |
| CVE-2021-40363 | Siemens SIMATIC PCS 7和SIMATIC WinCC 授权问题漏洞 |
Showing top 20 of 23 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same vendor: Siemens
Same weakness: CWE-672
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V. Comments for CVE-2021-37204
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