发布编号：TACERT-ANA-2022042109040303
发布时间：2022-04-21 09:20:03
事故类型：ANA-漏洞预警
发现时间：2022-04-20 16:24:03
影响等级：中
[主旨说明:]
【漏洞预警】Windows作业系统存在高风险安全漏洞(CVE-2022-26809)，允许攻击者远端执行任意程式码，请尽速确认并进行更新。
[内容说明:]
转发 国家资安资讯分享与分析中心 NISAC-ANA-202204-0651
研究人员发现Windows作业系统存在高风险安全漏洞(CVE-2022-26809)，攻击者可将特别制作之远端程序呼叫(Remote Procedure Call，简称RPC)传送至RPC主机，即可获得与RPC服务相同之权限，进而于服务器上远端执行任意程式码。
情资分享等级: WHITE(情资内容为可公开揭露之资讯)
[影响平台:]
受影响版本如下：
● Windows 10 for 32-bit Systems
● Windows 10 for x64-based Systems
● Windows 10 Version 1607 for 32-bit Systems
● Windows 10 Version 1607 for x64-based Systems
● Windows 10 Version 1809 for 32-bit Systems
● Windows 10 Version 1809 for ARM64-based Systems
● Windows 10 Version 1809 for x64-based Systems
● Windows 10 Version 1909 for 32-bit Systems
● Windows 10 Version 1909 for ARM64-based Systems
● Windows 10 Version 1909 for x64-based Systems
● Windows 10 Version 20H2 for 32-bit Systems
● Windows 10 Version 20H2 for ARM64-based Systems
● Windows 10 Version 20H2 for x64-based Systems
● Windows 10 Version 21H1 for 32-bit Systems
● Windows 10 Version 21H1 for ARM64-based Systems
● Windows 10 Version 21H1 for x64-based Systems
● Windows 10 Version 21H2 for 32-bit Systems
● Windows 10 Version 21H2 for ARM64-based Systems
● Windows 10 Version 21H2 for x64-based Systems
● Windows 11 for ARM64-based Systems
● Windows 11 for x64-based Systems
● Windows 7 for 32-bit Systems Service Pack 1
● Windows 7 for x64-based Systems Service Pack 1
● Windows 8.1 for 32-bit systems
● Windows 8.1 for x64-based systems
● Windows RT 8.1
● Windows Server 2008 for 32-bit Systems Service Pack 2
● Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
● Windows Server 2008 for x64-based Systems Service Pack 2
● Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
● Windows Server 2008 R2 for x64-based Systems Service Pack 1
● Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
● Windows Server 2012
● Windows Server 2012 (Server Core installation)
● Windows Server 2012 R2 Windows Server 2012 R2
● Windows Server 2012 R2 (Server Core installation)
● Windows Server 2016
● Windows Server 2016 (Server Core installation)
● Windows Server 2019
● Windows Server 2019 (Server Core installation)
● Windows Server 2022
● Windows Server 2022 (Server Core installation)
● Windows Server, version 20H2 (Server Core Installation)
[建议措施:]
1.目前微软官方已针对此漏洞释出更新程式，请各机关联络维护厂商或参考下列网址进行更新：https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26809
2.若无法更新若无法更新至最新版本，请参考微软官方网页之「Mitigations」一节，采取下列缓解措施：
(1)关闭边界防火墙的TCP 445埠。
(2)参考下列官方指引保护SMB流量：https://docs.microsoft.com/zh-tw/windows-server/storage/file-server/smb-secure-traffic
[参考资料:]
1. 微软CVE-2022-26809漏洞出现攻击程式只是早晚的问题？专家警告快修补
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