4 种方法暂时屏蔽最新Internet Explorer 0day漏洞

 微软周三证实,IE 7浏览器中新发现了一个漏洞.该公司周五又表示,该漏洞存在于所有版本的IE当中(即从IE 5到IE 8 beta 2都受到影响).微软周五没有透露将于何时发布该漏洞的补丁程序,但建议用户屏蔽oledb32.dll文件。

IE 最新 0day 波及了微软全线系统，目前暂时没有补丁。微软于近日发布了一份安全通报，指导您如何暂时屏蔽此漏洞。
漏洞出在 OLEDB32.dll 这个文件上。所以我们的目的就是屏蔽这个文件。对此，微软连出了4个杀手锏：

1. SACL 法（仅适用于 Vista）
[Unicode]
Unicode=yes
[Version]
signature=”$CHICAGO$”
Revision=1
[File Security]
“%ProgramFiles%\Common Files\System\Ole DB\oledb32.dll”,2,”S:(ML;;NWNRNX;;;ME)”

将以上内容保存为 BlockAccess_x86.inf
然后在命令提示符里执行 SecEdit /configure /db BlockAccess.sdb /cfg <inf file>
其中 <inf file> 为 inf 文件路径。若成功会看到“操作成功完成”的提示。

2. 禁用 Row Position 功能法

HKEY_CLASSES_ROOT\CLSID\{2048EEE6-7FA2-11D0-9E6A-00A0C9138C29}
打开注册表编辑器，将此键删除即可。

3. 取消 DLL 注册法

在命令提示符中输入 Regsvr32.exe /u “%ProgramFiles%\Common Files\System\Ole DB\oledb32.dll”
即可

4. 权限设置法

在命令提示符中输入 cacls “%ProgramFiles%\Common Files\System\Ole DB\oledb32.dll” /E /P everyone:N

Vista 系统则需要输入3个命令：

takeown /f “%ProgramFiles%\Common Files\System\Ole DB\oledb32.dll”
icacls “%ProgramFiles%\Common Files\System\Ole DB\oledb32.dll” /save %TEMP%\oledb32.32.dll.TXT
icacls “%ProgramFiles%\Common Files\System\Ole DB\oledb32.dll” /deny everyone:(F)
其中第一种方法影响最小（只影响 IE 对此 DLL 的访问）。

附：此漏洞影响的系统、软件列表

• Windows Internet Explorer 7
• Windows Internet Explorer 7 for Windows XP
• Windows Internet Explorer 7 for Windows Server 2003
• Windows Internet Explorer 7 for Windows Server 2003 IA64
• Windows Internet Explorer 7 in Windows Vista
• Windows Internet Explorer 8 Beta
• Microsoft Internet Explorer 6.0 Service Pack 2
• Microsoft Internet Explorer 6.0 Service Pack 1
• Microsoft Internet Explorer 6.0
• Microsoft Internet Explorer 5.01 Service Pack 4
• Windows Server 2008 Datacenter without Hyper-V
• Windows Server 2008 Enterprise without Hyper-V
• Windows Server 2008 for Itanium-Based Systems
• Windows Server 2008 Standard without Hyper-V
• Windows Server 2008 Datacenter
• Windows Server 2008 Enterprise
• Windows Server 2008 Standard
• Windows Web Server 2008
• Windows Vista Service Pack 1, when used with:
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business 64-bit Edition
• Microsoft Windows Server 2003 Service Pack 1, when used with:
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
• Microsoft Windows Server 2003, Datacenter x64 Edition
• Microsoft Windows Server 2003, Enterprise x64 Edition
• Microsoft Windows Server 2003, Standard x64 Edition
• Microsoft Windows XP Professional x64 Edition
• Microsoft Windows Server 2003 Service Pack 2, when used with:
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
• Microsoft Windows XP Service Pack 2, when used with:
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
• Microsoft Windows XP Service Pack 3, when used with:
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional

对于非 x86 系统请参考微软安全通报自行操作。