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CVE-2021-23882— Improper Access Control in the ENS installer

Quick assessment

Affected
McAfee LLC 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中存在安全漏洞，该漏洞源于允许本地管理员可以通过将精心编制的文件放置在将安装ENS的位置来阻止某些ENS文件的安装。

CVSS 8.2 · High EPSS 0.29% · P21
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I. Basic Information for CVE-2021-23882

Vulnerability Information
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Vulnerability Title
Improper Access Control in the ENS installer
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Access Control vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021 Update allows local administrators to prevent the installation of some ENS files by placing carefully crafted files where ENS will be installed. This is only applicable to clean installations of ENS as the Access Control rules will prevent modification prior to up an upgrade.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
迈克菲 McAfee Endpoint Security 访问控制错误漏洞
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中存在安全漏洞，该漏洞源于允许本地管理员可以通过将精心编制的文件放置在将安装ENS的位置来阻止某些ENS文件的安装。
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 Endpoint Security (ENS) for Windows 10.7.x ~ 10.7.0 February 2021 -

II. Public POCs for CVE-2021-23882

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III. Intelligence Information for CVE-2021-23882

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Other References for CVE-2021-23882 (1)

Same Patch Batch · McAfee LLC · 2021-02-10 · 5 CVEs total

CVE-2021-23878 7.3 HIGH Clear text storage of sensitive Information in ENS
CVE-2021-23880 6.7 MEDIUM Improper Access Control in the ENS installer
CVE-2021-23881 4.8 MEDIUM Stored Cross Site Scripting in ENS
CVE-2021-23883 4.0 MEDIUM Null Pointer Dereference vulnerability in McAfee Endpoint Security (ENS)

IV. Related Vulnerabilities

Same product: Endpoint Security (ENS) for Windows
Same vendor: McAfee LLC
Same weakness: CWE-269

V. Comments for CVE-2021-23882

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