发布时间 :2000-10-20 00:00:00
修订时间 :2008-09-05 16:21:41

[原文]The shtml.exe component of Microsoft FrontPage 2000 Server Extensions 1.1 allows remote attackers to cause a denial of service in some components by requesting a URL whose name includes a standard DOS device name.

[CNNVD]Microsoft FrontPage服务器扩展shtml.exe远程拒绝服务攻击漏洞(CNNVD-200010-045)

        FrontPage服务器扩展存在一个远程拒绝服务漏洞,可能远程关闭一个Web站点上的所有FrontPage操作。通过向shtml.exe提交一个包含DOS设备名(譬如con、aux、prn等)的链接请求,FrontPage 服务器扩展会挂起,不再响应后续的请求。为了恢复正常工作,必须重新启动IIS或者重新启动机器。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: [--]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)


- OVAL (用于检测的技术细节)


- 官方数据库链接
(官方数据源) MITRE
(官方数据源) NVD
(官方数据源) CNNVD

- 其它链接及资源
(VENDOR_ADVISORY)  BUGTRAQ  20000823 Xato Advisory: FrontPage DOS Device DoS

- 漏洞信息

Microsoft FrontPage服务器扩展shtml.exe远程拒绝服务攻击漏洞
中危 其他
2000-10-20 00:00:00 2005-10-20 00:00:00
        FrontPage服务器扩展存在一个远程拒绝服务漏洞,可能远程关闭一个Web站点上的所有FrontPage操作。通过向shtml.exe提交一个包含DOS设备名(譬如con、aux、prn等)的链接请求,FrontPage 服务器扩展会挂起,不再响应后续的请求。为了恢复正常工作,必须重新启动IIS或者重新启动机器。

- 公告与补丁

        * 如果不需要使用shtml.exe,请删除或者移出WEB目录。
        微软已经发布了FrontPage Server Extensions 1.2版,它解决了这个问题:

- 漏洞信息

Microsoft FrontPage shtml MS-DOS Device Name DoS
Remote / Network Access Denial of Service
Loss of Availability
Exploit Public

- 漏洞描述

Microsoft FrontPage 2000 Server Extensions contain a flaw that allow a remote attacker to create a denial of service. The issue is due to improper sanity checking on URI requests. If a request contains the same character sequence as a MS-DOS device name (COM, PM, AUX, etc), the service will consume significant CPU resources until the GET request times out.

- 时间线

2000-08-17 Unknow
Unknow Unknow

- 解决方案

Upgrade to version 1.2 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Microsoft FrontPage Server Extensions MS-DOS Device Name Denial Of Service Vulnerability
Failure to Handle Exceptional Conditions 1608
Yes Yes
2000-08-23 12:00:00 2009-07-11 02:56:00
Posted to Bugtraq on August 23, 2000 by Sozni <>.

- 受影响的程序版本

Microsoft FrontPage 2000 Server Extensions SR 1.1
- Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows NT 4.0

- 漏洞讨论

It is possible to remotely crash a system running Microsoft FrontPage Server Extensions by conducting a URL request for a MS-DOS device through shtml.exe. For example, the following URL requests will crash FrontPage Server Extensions:

http://target/_vti_bin/shtml.exe/comX.htm (X being one of 1, 2 ,3, or 4; the device must exist on the target machine)

The device name must have an appended extension in order for the exploit to work. In addition to the HTM extension, ASP will work as well. Restarting IIS or rebooting the system is required in order to regain normal functionality.

Testing has shown that it may require a constant stream of these requests in order to render the server ineffective.

- 漏洞利用

See discussion.

- 解决方案

Microsoft has eliminated this vulnerability with the release of FrontPage Server Extensions Service Release 1.2. It is available for download at the following location:

- 相关参考