关于Windows Lightweight Directory Access Protocol远程代码执行漏洞(CVE-2024-49112)的安全预警

来源:网络信息中心发布时间:2025-01-06浏览次数:25

一、基本情况

Windows Lightweight Directory Access Protocol (LDAP)是一种基于LDAP协议的轻量级目录访问协议,广泛用于Windows Active Directory (AD)环境中,用来访问和管理目录服务信息。

二、 漏洞描述

Windows Lightweight Directory Access Protocol远程代码执行漏洞(CVE-2024-49112CVSS评分9.8)的技术细节及PoC在互联网上公开。

Windows LDAP服务的wldap32.dll中存在整数溢出问题,攻击者可以通过未认证的特制DCE/RPC调用(或通过其他方式)诱使目标服务器(作为LDAP客户端)向攻击者控制的恶意LDAP服务器发起查询请求,当恶意LDAP服务器返回特制的、恶意构造的响应时,可能触发目标服务器中的漏洞,进而导致LSASS崩溃,引发系统重启,并可能进一步利用该漏洞导致远程代码执行。

三、 影响范围

Windows 10 for x64-based Systems

Windows 10 for 32-bit Systems

Windows Server 2025

Windows 11 Version 24H2 for x64-based Systems

Windows 11 Version 24H2 for ARM64-based Systems

Windows Server 2022, 23H2 Edition (Server Core installation)

Windows 11 Version 23H2 for x64-based Systems

Windows 11 Version 23H2 for ARM64-based Systems

Windows Server 2025 (Server Core installation)

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 Server 2022 (Server Core installation)

Windows Server 2022

Windows Server 2019 (Server Core installation)

Windows Server 2019

Windows 10 Version 1809 for x64-based Systems

Windows 10 Version 1809 for 32-bit Systems

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 2016 (Server Core installation)

Windows Server 2016

Windows 10 Version 1607 for x64-based Systems

Windows 10 Version 1607 for 32-bit Systems

四、 修复建议

目前微软已发布该漏洞的安全更新,受影响的用户可在更新可用时及时修复。

(一)Windows Update自动更新

Microsoft Update默认启用,当系统检测到可用更新时,将会自动下载更新并在下一次启动时安装。也可选择通过以下步骤手动进行更新:

1、点击开始菜单或按Windows快捷键,点击进入设置

2、选择更新和安全,进入“Windows更新Windows 8Windows 8.1Windows Server 2012以及Windows Server 2012 R2可通过控制面板进入“Windows更新,具体步骤为控制面板”->“系统和安全”->“Windows更新

3、选择检查更新,等待系统自动检查并下载可用更新。

4、更新完成后重启计算机,可通过进入“Windows更新”->“查看更新历史记录查看是否成功安装了更新。对于没有成功安装的更新,可以点击该更新名称进入微软官方更新描述链接,点击最新的SSU名称并在新链接中点击“Microsoft更新目录,然后在新链接中选择适用于目标系统的补丁进行下载并安装。

(二) 手动安装更新

Microsoft官方下载相应补丁进行更新。