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安全漏洞
Microsoft FrontPage Server Extensions SmartHTML远程缓冲区溢出漏洞(MS02-053)

发布日期:2002-09-25
更新日期:2002-09-29

受影响系统:
Microsoft FrontPage Server Extensions 2000
    - Microsoft Windows XP Professional SP1
    - Microsoft Windows XP Professional
    - Microsoft Windows XP Home SP1
    - Microsoft Windows XP Home
    - Microsoft Windows 2000 SP3
    - Microsoft Windows 2000 Server SP3
    - Microsoft Windows 2000 Server SP2
    - Microsoft Windows 2000 Server SP1
    - Microsoft Windows 2000 Server
    - Microsoft Windows 2000 Professional SP3
    - Microsoft Windows 2000 Professional SP2
    - Microsoft Windows 2000 Professional SP1
    - Microsoft Windows 2000 Professional
    - Microsoft Windows 2000 Datacenter Server SP3
    - Microsoft Windows 2000 Datacenter Server SP2
    - Microsoft Windows 2000 Datacenter Server SP1
    - Microsoft Windows 2000 Datacenter Server
    - Microsoft Windows 2000 Advanced Server SP3
    - Microsoft Windows 2000 Advanced Server SP2
    - Microsoft Windows 2000 Advanced Server SP1
    - Microsoft Windows 2000 Advanced Server
Microsoft FrontPage Server Extensions 2002
    - Microsoft Windows XP Professional SP1
    - Microsoft Windows XP Professional
    - Microsoft Windows XP Home SP1
    - Microsoft Windows XP Home
    - Microsoft Windows 2000 SP3
    - Microsoft Windows 2000 Server SP3
    - Microsoft Windows 2000 Server SP2
    - Microsoft Windows 2000 Server SP1
    - Microsoft Windows 2000 Server
    - Microsoft Windows 2000 Professional SP3
    - Microsoft Windows 2000 Professional SP2
    - Microsoft Windows 2000 Professional SP1
    - Microsoft Windows 2000 Professional
    - Microsoft Windows 2000 Datacenter Server SP3
    - Microsoft Windows 2000 Datacenter Server SP2
    - Microsoft Windows 2000 Datacenter Server SP1
    - Microsoft Windows 2000 Datacenter Server
    - Microsoft Windows 2000 Advanced Server SP3
    - Microsoft Windows 2000 Advanced Server SP2
    - Microsoft Windows 2000 Advanced Server SP1
    - Microsoft Windows 2000 Advanced Server
描述:
BUGTRAQ  ID: 5804
CVE(CAN) ID: CVE-2002-0692

Microsoft FrontPage服务器扩展是Microsoft公司开发的用于加强IIS Web服务器的功能的软件包。

Microsoft FrontPage服务器扩展中的SmartHTML (shtml)解析器组件对用户提交的请求缺少正确过滤检查,远程攻击者可以利用这个漏洞进行拒绝服务攻击,可能以FrontPage进程权限在系统上执行任意指令。

SmartHTML (shtml)解析器是Microsoft FrontPage服务器扩展和Microsoft SharePoint Team Services中的一个组件,提供对WEB表单和其他基于FrontPage动态内容的支持。在处理特殊WEB文件类型请求时解析器存在一个漏洞,如果攻击者提交的特殊WEB文件类型请求中包含特殊字符,在FrontPage服务器扩展2000中,这类请求可导致解析器消耗大量或者全部CPU时间,直到WEB服务重新启动。而在FrontPage服务器扩展2002和SharePoint Team Services 2002系统上,相同类型的请求可导致缓冲区溢出,可能以FrontPage进程权限在系统上执行任意指令。

<*来源:Maninder Bharadwaj
  
  链接:http://www.microsoft.com/technet/security/bulletin/MS02-053.asp
*>

建议:
临时解决方法:

如果您不能立刻安装补丁或者升级,NSFOCUS建议您采取以下措施以降低威胁:

* 使用IIS Lockdown工具(http://www.microsoft.com/technet/security/tools/locktool.asp)关闭SmartHTMl解析器。

* IIS 4.0, 5.0和5.1 默认情况下安装FrontPage服务器扩展,如果不需要,反安装FrontPage服务器扩展。

厂商补丁:

Microsoft
---------
Microsoft已经为此发布了一个安全公告(MS02-053)以及相应补丁:
MS02-053:Buffer Overrun in SmartHTML Interpreter Could Allow Code Execution (Q324096)
链接:http://www.microsoft.com/technet/security/bulletin/MS02-053.asp

补丁下载:

    * Microsoft FrontPage Server Extensions 2002 for all platforms
       http://download.microsoft.com/download/FrontPage2002/fpse1002/1/W98NT42KMeXP/EN-US/fpse1002.exe

     * Microsoft FrontPage Server Extension 2000 for NT4
       http://download.microsoft.com/download/fp2000fd2000/Patch/1/W9XNT4Me/EN-US/fpse0901.exe

     * Microsoft FrontPage Server Extensions 2000 for Windows XP

       o http://www.microsoft.com/downloads/release.asp?ReleaseID=42995
       o Windows Update
         http://windowsupdate.microsoft.com/

     * Microsoft FrontPage Server Extensions 2000 for Windows 2000

       o http://www.microsoft.com/downloads/release.asp?ReleaseID=42954
       o Windows Update
         http://windowsupdate.microsoft.com/

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