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 7 for 32-bit 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 2008 R2 for x64-based Systems
Microsoft Microsoft Windows Server 2008 R2 for x64-based Systems
Microsoft Microsoft Windows Server 2008 for x64-based Systems SP2
Microsoft Microsoft Windows Server 2008 for x64-based Systems SP2
Microsoft Microsoft Windows Server 2008 for 32-bit Systems SP2(Se
Microsoft Microsoft Windows Server 2008 for 32-bit Systems SP2
Microsoft Microsoft Windows Server 2004(Server Core installation)

描述：

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CVE(CAN) ID: CVE-2021-43216

Microsoft Local Security Authority Server (lsasrv)是受Microsoft Windows保护的子系统，它是Windows 客户端身份验证体系结构的一部分，可对本地计算机进行身份验证并创建登录会话。
Microsoft Local Security Authority Server (lsasrv)存在信息泄露漏洞。攻击者可通过与其他漏洞结合的方式利用该漏洞执行任意代码。

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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-2021-43216

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