发布日期：2021-12-14
更新日期：2021-12-15

受影响系统：

Microsoft Microsoft Windows RT 8.1
Microsoft Microsoft Windows 8.1 for x64-based systems
Microsoft Microsoft Windows 8.1 for 32-bit systems
Microsoft Microsoft Windows 7 for x64-based Systems SP1
Microsoft Microsoft Windows 10 for x64-based Systems
Microsoft Microsoft Windows 10 for 32-bit Systems
Microsoft Microsoft Windows 10 21H2 for x64-based Systems
Microsoft Microsoft Windows 10 21H2 for ARM64-based Systems
Microsoft Microsoft Windows 10 21H2 for 32-bit Systems
Microsoft Microsoft Windows 10 21H1 for x64-based Systems
Microsoft Microsoft Windows 10 21H1 for ARM64-based Systems
Microsoft Microsoft Windows 10 21H1 for 32-bit Systems
Microsoft Microsoft Windows 10 20H2 for x64-based Systems
Microsoft Microsoft Windows 10 20H2 for ARM64-based Systems
Microsoft Microsoft Windows 10 20H2 for 32-bit Systems
Microsoft Microsoft Windows 10 2004 for x64-based Systems
Microsoft Microsoft Windows 10 2004 for ARM64-based Systems
Microsoft Microsoft Windows 10 2004 for 32-bit Systems
Microsoft Microsoft Windows 10 1909 for x64-based Systems
Microsoft Microsoft Windows 10 1909 for ARM64-based Systems
Microsoft Microsoft Windows 10 1909 for 32-bit Systems
Microsoft Microsoft Windows 10 1809 for x64-based Systems
Microsoft Microsoft Windows 10 1809 for ARM64-based Systems
Microsoft Microsoft Windows 10 1809 for 32-bit Systems
Microsoft Microsoft Windows 10 1607 for x64-based Systems
Microsoft Microsoft Windows 10 1607 for 32-bit Systems
Microsoft Microsoft Windows 11 for x64-based Systems
Microsoft Microsoft Windows 11 for ARM64-based Systems
Microsoft Microsoft Windows Server 20H2(Server Core Installation)
Microsoft Microsoft Windows Server 2022(Server Core installation)
Microsoft Microsoft Windows Server 2022
Microsoft Microsoft Windows Server 2019(Server Core installation)
Microsoft Microsoft Windows Server 2019
Microsoft Microsoft Windows Server 2016(Server Core installation)
Microsoft Microsoft Windows Server 2016
Microsoft Microsoft Windows Server 2012(Server Core installation)
Microsoft Microsoft Windows Server 2012 R2(Server Core installati
Microsoft Microsoft Windows Server 2012 R2
Microsoft Microsoft Windows Server 2012
Microsoft Microsoft Windows Server 2004(Server Core installation)

描述：

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CVE(CAN) ID: CVE-2021-43223

Remote Access Connection Manager (RasMan)是一项Windows 服务，用于管理从用户计算机到Internet的虚拟专用网络(VPN)连接。
Microsoft Windows Remote Access Connection Manager存在权限提升漏洞。攻击者可利用该漏洞提升权限。

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建议：

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厂商补丁：

Microsoft
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目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43223

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