0x00 漏洞背景
2019年8月14日微软发布的安全更新中除了RDP漏洞还涵盖了针对多个远程代码执行高危漏洞的修复。
- Microsoft Word远程代码执行漏洞， 漏洞编号CVE-2019-0585。
- Windows DHCP客户端远程代码执行漏洞， 漏洞编号CVE-2019-0736。
- LNK远程代码执行漏洞，漏洞编号CVE-2019-1188。
0x01 漏洞详情
- LNK远程代码执行漏洞CVE-2019-1188
这个LNK远程代码执行漏洞和之前Stuxnet利用的LNK漏洞及其绕过类似。如果系统处理了攻击者准备的.LNK文件，则攻击者可能可以远程执行代码。攻击者可以通过可移动驱动器(如U盘)或者远程共享的方式攻击。
该漏洞影响下列版本的操作系统：
Windows 10 Version 1709 for 32-bit Systems
Windows 10 Version 1709 for 64-based Systems
Windows 10 Version 1709 for ARM64-based Systems
Windows 10 Version 1803 for 32-bit Systems
Windows 10 Version 1803 for ARM64-based Systems
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1903 for 32-bit Systems
Windows 10 Version 1903 for ARM64-based Systems
Windows 10 Version 1903 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server, version 1803 (Server Core Installation)
Windows Server, version 1903 (Server Core installation)
- Microsoft Word远程代码执行漏洞CVE-2019-0585
大多数word补丁被评为Important，但这一个被评为Critical。通常的word漏洞需要受害者在word中打开存在漏洞的word文档。对于这个漏洞攻击媒介是Outlook预览窗格，因此攻击者需要将准备的word文档或者其链接通过电子邮件发送给受害者，如果受害者在Outlook预览窗格中打开则可能利用此漏洞执行任意代码。
该漏洞影响下列版本的office：
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2016 for Mac
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Office 2019 for Mac
Microsoft Office Online Server
Microsoft Office Web Apps 2010 Service Pack 2
Microsoft Office Word Viewer
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Server 2019
Microsoft Word 2010 Service Pack 2 (32-bit editions)
Microsoft Word 2010 Service Pack 2 (64-bit editions)
Microsoft Word 2013 RT Service Pack 1
Microsoft Word 2013 Service Pack 1 (32-bit editions)
Microsoft Word 2013 Service Pack 1 (64-bit editions)
Microsoft Word 2016 (32-bit edition)
Microsoft Word 2016 (64-bit edition)
Office 365 ProPlus for 32-bit Systems
Office 365 ProPlus for 64-bit Systems
Word Automation Services
- Windows DHCP客户端远程代码执行漏洞CVE-2019-0736
如果攻击者向受影响的目标发送一个经过特殊设计的DHCP包，这个漏洞可能允许攻击者执行任意代码。这个过程不涉及用户交互或身份验证，理论上也是蠕虫化的。
该漏洞影响下列版本的操作系统：
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1703 for 32-bit Systems
Windows 10 Version 1703 for x64-based Systems
Windows 10 Version 1709 for 32-bit Systems
Windows 10 Version 1709 for 64-based Systems
Windows 10 Version 1709 for ARM64-based Systems
Windows 10 Version 1803 for 32-bit Systems
Windows 10 Version 1803 for ARM64-based Systems
Windows 10 Version 1803 for x64-based Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows RT 8.1
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for Itanium-Based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server, version 1803 (Server Core Installation)
0x02 修复建议
360CERT建议通过安装360安全卫士(http://weishi.360.cn)进行一键更新。应及时进行Microsoft Windows版本更新并且保持Windows自动更新开启，也可以通过下载参考链接中的软件包，手动进行升级。
0x03 时间线
2019-08-14 微软官方发布安全公告
2019-08-14 360CERT发布预警
0x04 参考链接
1.https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-05852.https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-07363.https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-11884.https://www.zerodayinitiative.com/blog/2019/8/13/the-august-2019-security-update-review