漏洞描述

Windows Print Spooler是Windows的打印機(jī)后臺(tái)處理程序，廣泛的應(yīng)用于各種內(nèi)網(wǎng)中。2021年6月，Windows官方發(fā)布安全更新，其中修復(fù)了 CVE-2021-1675 Windows Print Spooler遠(yuǎn)程代碼執(zhí)行漏洞。2021年6月29日，安全研究人員在GitHub上公開(kāi)了Windows Print Spooler遠(yuǎn)程代碼執(zhí)行漏洞POC。攻擊者可以通過(guò)該漏洞繞過(guò)PfcAddPrinterDriver的安全驗(yàn)證，并在打印服務(wù)器中安裝惡意的驅(qū)動(dòng)程序，若攻擊者所控制的用戶在域中，則攻擊者可以連接到DC中的Spooler服務(wù)，并利用該漏洞在DC中安裝惡意的驅(qū)動(dòng)程序，完整的控制整個(gè)域環(huán)境。阿里云云安全中心已于2021年6月8日發(fā)布漏洞檢測(cè)與修復(fù)規(guī)則，阿里云應(yīng)急響應(yīng)中心提醒 Windows 用戶盡快采取安全措施阻止漏洞攻擊。

漏洞評(píng)級(jí)

CVE-2021-1675 Windows Print Spooler遠(yuǎn)程代碼執(zhí)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(shí)更新Window補(bǔ)丁。

2、在服務(wù)應(yīng)用（services.msc）中禁用 Print Spooler服務(wù)。

相關(guān)鏈接

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