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CVE-2021-4038— NSM vulnerable to XSS

Quick assessment

Affected
McAfee,LLC McAfee Network Security Manager (NSM)
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 Network Security Manager（NSM）是美国迈克菲（McAfee）公司的一套能够实时监控整个网络中已部署的迈克菲入侵防护系统的网络安全解决方案。 McAfee Network Security Manager (NSM) 10.1 Minor 7 之前的版本中存在跨站脚本漏洞，该漏洞源于 NSM 未在所有情况下正确清理自定义规则内容。该漏洞允许经过身份验证的远程管理员通过包含 HTML 的特制自定义规则在管理员界面中嵌入 XSS。

CVSS 4.8 · Medium EPSS 0.59% · P46

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-4038

Vulnerability Information
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Vulnerability Title
NSM vulnerable to XSS
Source: CVE Program / CVE List V5
Vulnerability Description
Cross Site Scripting (XSS) vulnerability in McAfee Network Security Manager (NSM) prior to 10.1 Minor 7 allows a remote authenticated administrator to embed a XSS in the administrator interface via specially crafted custom rules containing HTML. NSM did not correctly sanitize custom rule content in all scenarios.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
McAfee Network Security Manager 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
McAfee Network Security Manager（NSM）是美国迈克菲（McAfee）公司的一套能够实时监控整个网络中已部署的迈克菲入侵防护系统的网络安全解决方案。 McAfee Network Security Manager (NSM) 10.1 Minor 7 之前的版本中存在跨站脚本漏洞，该漏洞源于 NSM 未在所有情况下正确清理自定义规则内容。该漏洞允许经过身份验证的远程管理员通过包含 HTML 的特制自定义规则在管理员界面中嵌入 XSS。
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 Network Security Manager (NSM) unspecified ~ 10.7 M7 -

II. Public POCs for CVE-2021-4038

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III. Intelligence Information for CVE-2021-4038

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Other References for CVE-2021-4038 (1)

IV. Related Vulnerabilities

Same product: McAfee Network Security Manager (NSM)
Same vendor: McAfee,LLC
Same weakness: CWE-79

V. Comments for CVE-2021-4038

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