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CVE-2021-31843— Improper access control vulnerability in McAfee ENS for Windows

Quick assessment

Affected
McAfee,LLC McAfee Endpoint Security (ENS) for WIndows
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.

Mcafee McAfee Endpoint Security（ENS）是美国迈克菲（Mcafee）公司的一套提供智能协作和先进的威胁防御的框架。该框架支持对实时通信的整个威胁防御生命周期进行控制并进行可操作的威胁取证等。 McAfee Endpoint Security 存在安全漏洞，该漏洞源于Windows存在不适当的权限管理漏洞。攻击者可利用该漏洞允许本地用户通过操纵连接链接将McAfee文件夹操作重定向到意外位置来访问原本无法访问的文件。

CVSS 7.3 · High EPSS 0.31% · P22
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I. Basic Information for CVE-2021-31843

Vulnerability Information
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Vulnerability Title
Improper access control vulnerability in McAfee ENS for Windows
Source: CVE Program / CVE List V5
Vulnerability Description
Improper privileges management vulnerability in McAfee Endpoint Security (ENS) Windows prior to 10.7.0 September 2021 Update allows local users to access files which they would otherwise not have access to via manipulating junction links to redirect McAfee folder operations to an unintended location.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
McAfee Endpoint Security 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mcafee McAfee Endpoint Security（ENS）是美国迈克菲（Mcafee）公司的一套提供智能协作和先进的威胁防御的框架。该框架支持对实时通信的整个威胁防御生命周期进行控制并进行可操作的威胁取证等。 McAfee Endpoint Security 存在安全漏洞，该漏洞源于Windows存在不适当的权限管理漏洞。攻击者可利用该漏洞允许本地用户通过操纵连接链接将McAfee文件夹操作重定向到意外位置来访问原本无法访问的文件。
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
McAfee,LLC McAfee Endpoint Security (ENS) for WIndows unspecified ~ 10.7.0 September 2021 Update -

II. Public POCs for CVE-2021-31843

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III. Intelligence Information for CVE-2021-31843

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Other References for CVE-2021-31843 (1)

Same Patch Batch · McAfee,LLC · 2021-09-17 · 4 CVEs total

CVE-2021-31845 8.4 HIGH Remote Code Execution in McAfee DLP Discover
CVE-2021-31844 8.2 HIGH Local Privilege Escalation in McAfee DLP Endpoint for Windows
CVE-2021-31842 5.0 MEDIUM McAfee Endpoint Security 代码问题漏洞

IV. Related Vulnerabilities

Same product: McAfee Endpoint Security (ENS) for WIndows
Same vendor: McAfee,LLC
Same weakness: CWE-59

V. Comments for CVE-2021-31843

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