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CVE-2021-42023

Quick assessment

Affected
Siemens ModelSim Simulation
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 ModelSim Simulation是德国西门子（Siemens）公司的一个模拟仿真软件。用于模拟行为、Rtl 和门级代码。 ModelSim Simulation（所有版本）和Questa Simulation（所有版本）中存在安全漏洞，该漏洞源于受影响应用程序中的 RSA 白盒实施未能充分保护根据 IEEE 1735 推荐做法解密电子知识产权 (IP) 数据所需的内置私钥。这可能允许攻击者发现密钥，绕过 IEEE 1735 推荐做法的保护措施。

AI Predicted 7.5 Difficulty: Hard EPSS 0.56% · P44

Possible ATT&CK Techniques 1 AI

T1552 · Unsecured Credentials
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I. Basic Information for CVE-2021-42023

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built-in private keys that are required to decrypt electronic intellectual property (IP) data in accordance with the IEEE 1735 recommended practice. This could allow a sophisticated attacker to discover the keys, bypassing the protection intended by the IEEE 1735 recommended practice.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
Vulnerability Title
ModelSim Simulation 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens ModelSim Simulation是德国西门子（Siemens）公司的一个模拟仿真软件。用于模拟行为、Rtl 和门级代码。 ModelSim Simulation（所有版本）和Questa Simulation（所有版本）中存在安全漏洞，该漏洞源于受影响应用程序中的 RSA 白盒实施未能充分保护根据 IEEE 1735 推荐做法解密电子知识产权 (IP) 数据所需的内置私钥。这可能允许攻击者发现密钥，绕过 IEEE 1735 推荐做法的保护措施。
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 ModelSim Simulation All versions -
Siemens Questa Simulation All versions -

II. Public POCs for CVE-2021-42023

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III. Intelligence Information for CVE-2021-42023

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Vendor Advisories for CVE-2021-42023 (1)

Same Patch Batch · Siemens · 2021-12-14 · 46 CVEs total

CVE-2021-44002 7.8 HIGH Siemens JT2GO和Siemens Teamcenter Visualization 缓冲区错误漏洞
CVE-2021-44014 7.8 HIGH Siemens JT2GO 资源管理错误漏洞
CVE-2021-44440 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44446 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44449 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44450 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44522 Siemens SiPass Integrated和Siveillance Identity 安全漏洞
CVE-2021-44523 Siemens SiPass Integrated和Siveillance Identity 安全漏洞
CVE-2021-44524 Siemens SiPass Integrated和Siveillance Identity 授权问题漏洞
CVE-2021-44448 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44442 Siemens JT Utilities 安全漏洞
CVE-2021-44441 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44443 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44439 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44438 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44437 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44436 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44435 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44434 Siemens JT Utilities 缓冲区错误漏洞
CVE-2021-44433 Siemens JT Utilities 资源管理错误漏洞

Showing top 20 of 46 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: Siemens
Same weakness: CWE-522

V. Comments for CVE-2021-42023

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