CVE-2021-31344
Quick assessment
Affected
Siemens Capital Embedded AR Classic 431-422
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 Nucleus ReadyStart是德国Siemens公司的一个捆绑式解决方案。用于加速完整系统的快速启动并提供丰富的板级支持包 (Bsp) Siemens Nucleus RTOS TCP/IP Stack 存在安全漏洞，该漏洞源于带有假 IP 选项的 ICMP 回显数据包允许向网络上的任意主机发送 ICMP 回显回复消息。
Possible ATT&CK Techniques 1 AI
T1498.002 · Reflection Amplification
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I. Basic Information for CVE-2021-31344
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), SIMOTICS CONNECT 400 (All versions < V1.0.0.0). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens Nucleus ReadyStart 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens Nucleus ReadyStart是德国Siemens公司的一个捆绑式解决方案。用于加速完整系统的快速启动并提供丰富的板级支持包 (Bsp) Siemens Nucleus RTOS TCP/IP Stack 存在安全漏洞，该漏洞源于带有假 IP 选项的 ICMP 回显数据包允许向网络上的任意主机发送 ICMP 回显回复消息。
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 | Capital Embedded AR Classic 431-422 | 0 ~ * | - |
|
| Siemens | Capital Embedded AR Classic R20-11 | 0 ~ V2303 | - |
|
| Siemens | PLUSCONTROL 1st Gen | All versions | - |
|
| Siemens | SIMOTICS CONNECT 400 | All versions < V0.5.0.0 | - |
|
| Siemens | SIMOTICS CONNECT 400 | All versions < V1.0.0.0 | - |
|
II. Public POCs for CVE-2021-31344
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-31344 (10)
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https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf x_refsource_MISC
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https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf x_refsource_MISC
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https://cert-portal.siemens.com/productcert/pdf/ssa-845392.pdf x_refsource_MISC
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https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf x_refsource_MISC
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https://cert-portal.siemens.com/productcert/pdf/ssa-223353.pdf x_refsource_MISC
Same Patch Batch · Siemens · 2021-11-09 · 25 CVEs total
| CVE-2021-40358 | 9.9 CRITICAL | Siemens SIMATIC PCS 7和SIMATIC WinCC 路径遍历漏洞 |
| CVE-2021-31346 | 8.2 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2021-40359 | 7.7 HIGH | Siemens SIMATIC PCS 7和SIMATIC WinCC 路径遍历漏洞 |
| CVE-2021-31345 | 7.5 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2021-31890 | 7.5 HIGH | Siemens Nucleus ReadyStart 安全漏洞 |
| CVE-2021-31889 | 7.5 HIGH | Siemens Nucleus 数字错误漏洞 |
| CVE-2021-31881 | 7.1 HIGH | Siemens Nucleus ReadyStart 缓冲区错误漏洞 |
| CVE-2021-31883 | 7.1 HIGH | Siemens Nucleus ReadyStart 缓冲区错误漏洞 |
| CVE-2021-31882 | 6.5 MEDIUM | Siemens Nucleus 缓冲区错误漏洞 |
| CVE-2021-40364 | 5.5 MEDIUM | Siemens SIMATIC PCS 7和SIMATIC WinCC 日志信息泄露漏洞 |
| CVE-2021-31888 | Siemens Nucleus ReadyStart 缓冲区错误漏洞 | |
| CVE-2020-10052 | SIMATIC RTLS 日志信息泄露漏洞 | |
| CVE-2020-10053 | SIMATIC RTLS 安全漏洞 | |
| CVE-2020-10054 | SIMATIC RTLS 输入验证错误漏洞 | |
| CVE-2021-31884 | Siemens Nucleus ReadyStart 安全漏洞 | |
| CVE-2021-31885 | Siemens Nucleus ReadyStart 安全漏洞 | |
| CVE-2021-31886 | Siemens Nucleus ReadyStart 缓冲区错误漏洞 | |
| CVE-2021-42026 | Siemens Mendix 安全漏洞 | |
| CVE-2021-31887 | Siemens Nucleus ReadyStart 缓冲区错误漏洞 | |
| CVE-2021-37207 | Siemens Sentron Powermanager 安全漏洞 |
Showing top 20 of 25 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-31344
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