漏洞描述

Windows Print Spooler是Windows的打印機後台處理程序，廣泛的應用于各種内網中(zhōng)。2021年6月，Windows官方發布安全更新，其中(zhōng)修複了 CVE-2021-1675 Windows Print Spooler遠程代碼執行漏洞。2021年6月29日，安全研究人員(yuán)在GitHub上公開(kāi)了Windows Print Spooler遠程代碼執行漏洞POC。攻擊者可以通過該漏洞繞過PfcAddPrinterDriver的安全驗證，并在打印服務器中(zhōng)安裝惡意的驅動程序，若攻擊者所控制的用戶在域中(zhōng)，則攻擊者可以連接到DC中(zhōng)的Spooler服務，并利用該漏洞在DC中(zhōng)安裝惡意的驅動程序，完整的控制整個域環境。阿裏雲雲安全中(zhōng)心已于2021年6月8日發布漏洞檢測與修複規則，阿裏雲應急響應中(zhōng)心提醒 Windows 用戶盡快采取安全措施阻止漏洞攻擊。

漏洞評級

CVE-2021-1675 Windows Print Spooler遠程代碼執行漏洞 高危

影響版本

Windows Server 2019 (Server Core installation)

Windows Server 2019

Windows Server 2016 (Server Core installation)

Windows Server 2016

Windows Server 2012 R2 (Server Core installation)

Windows Server 2012 R2

Windows Server 2012 (Server Core installation)

Windows Server 2012

Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

Windows Server 2008 R2 for x64-based Systems Service Pack 1

Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)

Windows Server 2008 for x64-based Systems Service Pack 2

Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)

Windows Server 2008 for 32-bit Systems Service Pack 2

Windows Server, version 2004 (Server Core installation)

Windows RT 8.1

Windows 8.1 for x64-based systems

Windows 8.1 for 32-bit systems

Windows 7 for x64-based Systems Service Pack 1

Windows 7 for 32-bit Systems Service Pack 1

Windows 10 Version 1607 for x64-based Systems

Windows 10 Version 1607 for 32-bit Systems

Windows 10 for x64-based Systems

Windows 10 for 32-bit Systems

Windows Server, version 20H2 (Server Core Installation)

Windows 10 Version 20H2 for ARM64-based Systems

Windows 10 Version 20H2 for 32-bit Systems

Windows 10 Version 20H2 for x64-based Systems

Windows 10 Version 2004 for x64-based Systems

Windows 10 Version 2004 for ARM64-based Systems

Windows 10 Version 2004 for 32-bit 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 1909 for ARM64-based Systems

Windows 10 Version 1909 for x64-based Systems

Windows 10 Version 1909 for 32-bit Systems

Windows 10 Version 1809 for ARM64-based Systems

Windows 10 Version 1809 for x64-based Systems

Windows 10 Version 1809 for 32-bit Systems

安全建議

1、及時更新Window補丁。

2、在服務應用（services.msc）中(zhōng)禁用 Print Spooler服務。

相關鏈接

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1675