CVE-2021-31842
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I. Basic Information for CVE-2021-31842
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
XML Entity Expansion injection vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 September 2021 Update allows a local user to initiate high CPU and memory consumption resulting in a Denial of Service attack through carefully editing the EPDeploy.xml file and then executing the setup process.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
DTD中递归实体索引的不恰当限制(XML实体扩展)
Source: NVD (National Vulnerability Database)
Vulnerability Title
McAfee Endpoint Security 代码问题漏洞
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 存在代码问题漏洞，该漏洞源于McAfee端点安全(ENS)的XML实体扩展存在注入漏洞。攻击者可利用该漏洞允许本地用户通过仔细编辑EPDeploy.xml文件，然后执行安装过程，启动高CPU和内存消耗，导致拒绝服务攻击。
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-2021-31842
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://kc.mcafee.com/corporate/index?page=content&id=SB10367x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-31842
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-2021-31843 | 7.3 HIGH | Improper access control vulnerability in McAfee ENS for Windows |
IV. Related Vulnerabilities
Same vendor: McAfee,LLC
Same weakness: CWE-776
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MarkUs: YAML alias (‘billion laughs’) DoS in config upload - CVE-2026-26278
fast-xml-parser affected by DoS through entity expansion in
V. Comments for CVE-2021-31842
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