关于PowerShell远程代码执行漏洞（CVE-2022-41076）的预警提示

发布时间:2023-01-13

作者: 图档网信办公室

浏览次数:76

一、漏洞详情

PowerShell是一种功能强大的脚本语言和shell程序框架，PowerShell可在Windows、Linux和macOS上运行。

近日监测到针对PowerShell远程代码执行漏洞(CVE-2022-41076)的技术细节（称为TabShell）在互联网上公开。经过身份验证的远程攻击者可以在remote powershell会话中使用TabExpansion cmdlet，结合目录穿越载入任意dll，导致攻击者可以执行原本不能执行的cmdlet，从而在目标机器上执行任意代码。

建议受影响用户做好资产自查以及预防工作，以免遭受黑客攻击。

二、影响范围

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 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 Server 2016 (Server Core installation)

Windows Server 2016

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 10 Version 22H2 for 32-bit Systems

Windows 10 Version 22H2 for ARM64-based Systems

Windows 10 Version 22H2 for x64-based Systems

Windows 11 Version 22H2 for x64-based Systems

Windows 11 Version 22H2 for ARM64-based Systems

Windows 10 Version 21H2 for x64-based Systems

Windows 10 Version 21H2 for ARM64-based Systems

Windows 10 Version 21H2 for 32-bit Systems

Windows 11 version 21H2 for ARM64-based Systems

Windows 11 version 21H2 for x64-based Systems

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 Server 2022 (Server Core installation)

Windows Server 2022

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 Server 2019 (Server Core installation)

Windows Server 2019

Windows 10 Version 1809 for ARM64-based Systems

Windows 10 Version 1809 for x64-based Systems

Windows 10 Version 1809 for 32-bit Systems

PowerShell 7.3

PowerShell 7.2

三、修复建议

目前官方已发布补丁修复上述漏洞，建议受影响的用户尽快应用补丁。

获取链接：https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41076