Microsoft 远程桌面服务远程代码执行缝隙安全公告

颁布功夫 2019-09-09

●缝隙编号和级别


CVE编号：CVE-2019-0708，危险级别：严沉，CVSS分值：9.8


●影响版本


受影响的版本


Windows 7 for 32-bit Systems Service Pack 1

Windows 7 for x64-based Systems Service Pack1

Windows Server 2008 for 32-bit SystemsService Pack 2

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

Windows Server 2008 for Itanium-Based SystemsService Pack 2

Windows Server 2008 for x64-based SystemsService Pack 2

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

Windows Server 2008 R2 for Itanium-BasedSystems Service Pack 1

Windows Server 2008 R2 for x64-based SystemsService Pack 1

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

Windows XP SP3 x86

Windows XP Professional x64 Edition SP2

Windows XP Embedded SP3 x86

Windows Server 2003 SP2 x86

Windows Server 2003 x64 Edition SP2


●缝隙概述


5月 14 日，微软官方颁布安全更新，其中建复了 Windows 系统远程桌面服务中存在的远程代码执行缝隙（CVE-2019- 0708）。攻击者在远程且未经授权的情况下，通过发送精心机关的恶意数据包到指标服务器的远程桌面服务端口（默以为 3389），无需其他交互，即可在指标服务器上执行恶意代码，获取系统权限。


直至 9 月 7 日，开源的缝隙利用框架 metasploit-framework 新增了此缝隙的利用�？椋╟ve_2019_0708_bluekeep_rce），缝隙利用工具起头扩散，已经造成蠕虫级的安全威胁。由于能够造成远程代码执行的缝隙利用剧本已经公开，加上此缝隙自身拥有可蠕虫传布的性质，有可能会导致类似之前的 WannaCry 蠕虫安全事务产生，因而目前仍未做缝隙建复的用户需尽快更新微软官方的安全补丁。


●缝隙验证


EXP：https://github.com/rapid7/metasploit-framework/pull/12283。


●建复建议


官方补�。�


微软官方已经推出安全更新请参考以下官方安全公告下载并装置最新补�。�

https://support.microsoft.com/zh-cn/help/4500705/customer-guidance-for-cve-2019-0708

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0708


或凭据以下表格查找对应的系统版本下载最新补�。�


操作系统版本

补丁下载链接

Windows 7 x86

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.1-kb4499175-x86_6f1319c32d5bc4caf2058ae8ff40789ab10bf41b.msu

Windows 7 x64

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.1-kb4499175-x64_3704acfff45ddf163d8049683d5a3b75e49b58cb.msu

Windows Embedded  Standard 7 for x64

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.1-kb4499175-x64_3704acfff45ddf163d8049683d5a3b75e49b58cb.msu

Windows Embedded  Standard 7 for x86

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.1-kb4499175-x86_6f1319c32d5bc4caf2058ae8ff40789ab10bf41b.msu

Windows Server 2008  x64

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.0-kb4499149-x64_9236b098f7cea864f7638e7d4b77aa8f81f70fd6.msu

Windows Server 2008  Itanium

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.0-kb4499180-ia64_805e448d48ab8b1401377ab9845f39e1cae836d4.msu

Windows Server 2008  x86

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.0-kb4499149-x86_832cf179b302b861c83f2a92acc5e2a152405377.msu

Windows Server 2008 R2  Itanium

http://download.windowsupdate.com/c/msdownload/update/software/secu/2019/05/windows6.1-kb4499175-ia64_fabc8e54caa0d31a5abe8a0b347ab4a77aa98c36.msu

Windows Server 2008 R2  x64

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/05/windows6.1-kb4499175-x64_3704acfff45ddf163d8049683d5a3b75e49b58cb.msu

Windows Server 2003  x86

http://download.windowsupdate.com/d/csa/csa/secu/2019/04/windowsserver2003-kb4500331-x86-custom-chs_4892823f525d9d532ed3ae36fc440338d2b46a72.exe

Windows Server 2003  x64

http://download.windowsupdate.com/d/csa/csa/secu/2019/04/windowsserver2003-kb4500331-x64-custom-chs_f2f949a9a764ff93ea13095a0aca1fc507320d3c.exe

Windows XP SP3

http://download.windowsupdate.com/c/csa/csa/secu/2019/04/windowsxp-kb4500331-x86-custom-chs_718543e86e06b08b568826ac13c05f967392238c.exe

Windows XP SP2 for x64

http://download.windowsupdate.com/d/csa/csa/secu/2019/04/windowsserver2003-kb4500331-x64-custom-enu_e2fd240c402134839cfa22227b11a5ec80ddafcf.exe

Windows XP SP3 for XPe

http://download.windowsupdate.com/d/csa/csa/secu/2019/04/windowsxp-kb4500331-x86-embedded-custom-chs_96da48aaa9d9bcfe6cd820f239db2fe96500bfae.exe

WES09 and POSReady  2009

http://download.windowsupdate.com/d/msdownload/update/software/secu/2019/04/windowsxp-kb4500331-x86-embedded-chs_e3fceca22313ca5cdda811f49a606a6632b51c1c.exe


一时解决规划：


若用户不必要用到远程桌面服务，建议禁用该服务。

开启网络级别身份验证(NLA)

关关TCP端口3389的衔接，或对有关服务器做接见起源过滤，只允许可信IP衔接。


●参考链接


https://github.com/rapid7/metasploit-framework/pull/12283

https://msrc-blog.microsoft.com/2019/05/14/prevent-a-worm-by-updating-remote-desktop-services-cve-2019-0708/