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CVE-2021-25659

Quick assessment

Affected
Siemens Automation License Manager 5
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 Automation License Manager是德国西门子（Siemens）公司的一款用于Siemens产品的许可证管理器。 Automation License Manager 存在资源管理错误漏洞，该漏洞源于向受影响系统的4410 tcp端口发送特别制作的包可能导致大量内存被消耗，从而可能导致拒绝服务，阻止合法用户使用系统。

AI Predicted 7.5 Difficulty: Easy EPSS 1.04% · P63

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-25659

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in Automation License Manager 5 (All versions), Automation License Manager 6 (All versions < V6.0 SP9 Update 2). Sending specially crafted packets to port 4410/tcp of an affected system could lead to extensive memory being consumed and as such could cause a denial-of-service preventing legitimate users from using the system.
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
Siemens Automation License Manager 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens Automation License Manager是德国西门子（Siemens）公司的一款用于Siemens产品的许可证管理器。 Automation License Manager 存在资源管理错误漏洞，该漏洞源于向受影响系统的4410 tcp端口发送特别制作的包可能导致大量内存被消耗，从而可能导致拒绝服务，阻止合法用户使用系统。
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 Automation License Manager 5 All versions -
Siemens Automation License Manager 6 All versions < V6.0 SP9 Update 2 -

II. Public POCs for CVE-2021-25659

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III. Intelligence Information for CVE-2021-25659

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Vendor Advisories for CVE-2021-25659 (1)

Same Patch Batch · Siemens · 2021-08-10 · 9 CVEs total

CVE-2020-28397 Siemens SIMATIC S7-1500 CPU和SIMATIC S7-1500 授权问题漏洞
CVE-2021-33717 JT2Go 和Teamcenter Visualization 代码问题漏洞
CVE-2021-33721 SINEC NMS 操作系统命令注入漏洞
CVE-2021-33738 Siemens Teamcenter Visualization和Siemens Jt2go缓冲区错误漏洞
CVE-2021-37172 SIMATIC S7-1200 授权问题漏洞
CVE-2021-37178 Siemens Solid Edge 代码问题漏洞
CVE-2021-37179 Siemens Solid Edge 资源管理错误漏洞
CVE-2021-37180 Siemens Solid Edge 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: Automation License Manager 5
Same vendor: Siemens
Same weakness: CWE-400

V. Comments for CVE-2021-25659

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