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CVE-2021-42026

Quick assessment

Affected
Siemens Mendix Applications using Mendix 8
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 Mendix是德国西门子（Siemens）公司的一套低代码应用程序开发平台。该平台提供应用程序开发、测试、部署和迭代等功能。 Siemens Mendix 存在安全漏洞，该漏洞源于使用受影响的Mendix Studio Pro版本构建的应用程序不能正确地控制某些客户端操作的读访问。这将允许经过身份验证的攻击者可利用该漏洞检索任意对象的changedDate属性，即使他们没有对这些对象的读访问权。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.57% · P45

Possible ATT&CK Techniques 1 AI

T1213 · Data from Information Repositories
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I. Basic Information for CVE-2021-42026

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in Mendix Applications using Mendix 8 (All versions < V8.18.13), Mendix Applications using Mendix 9 (All versions < V9.6.2). Applications built with affected versions of Mendix Studio Pro do not properly control read access for certain client actions. This could allow authenticated attackers to retrieve the changedDate attribute of arbitrary objects, even when they don't have read access to them.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens Mendix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens Mendix是德国西门子（Siemens）公司的一套低代码应用程序开发平台。该平台提供应用程序开发、测试、部署和迭代等功能。 Siemens Mendix 存在安全漏洞，该漏洞源于使用受影响的Mendix Studio Pro版本构建的应用程序不能正确地控制某些客户端操作的读访问。这将允许经过身份验证的攻击者可利用该漏洞检索任意对象的changedDate属性，即使他们没有对这些对象的读访问权。
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 Mendix Applications using Mendix 8 All versions < V8.18.13 -
Siemens Mendix Applications using Mendix 9 All versions < V9.6.2 -

II. Public POCs for CVE-2021-42026

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III. Intelligence Information for CVE-2021-42026

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Vendor Advisories for CVE-2021-42026 (1)

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-2021-31890 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-2021-31345 7.5 HIGH Siemens Nucleus 安全漏洞
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-2021-31344 5.3 MEDIUM Siemens Nucleus ReadyStart 安全漏洞
CVE-2021-31886 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-2021-42025 Siemens Mendix 安全漏洞
CVE-2021-31888 Siemens Nucleus ReadyStart 缓冲区错误漏洞
CVE-2021-31887 Siemens Nucleus ReadyStart 缓冲区错误漏洞

Showing top 20 of 25 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Mendix Applications using Mendix 8
Same vendor: Siemens
Same weakness: CWE-863

V. Comments for CVE-2021-42026

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