发布时间 :1999-12-10 00:00:00
修订时间 :2008-09-09 08:36:34

[原文]The Windows help system can allow a local user to execute commands as another user by editing a table of contents metafile with a .CNT extension and modifying the topic action to include the commands to be executed when the .hlp file is accessed.



- CVSS (基础分值)

CVSS分值: 4.6 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: PARTIAL [可能会导致系统文件被修改]
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: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
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)

cpe:/o:microsoft:windows_95Microsoft Windows 95
cpe:/o:microsoft:windows_98::goldMicrosoft windows 98_gold
cpe:/o:microsoft:windows_nt:4.0Microsoft Windows NT 4.0

- 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

- 漏洞信息

中危 配置错误
1999-12-10 00:00:00 2005-05-02 00:00:00

- 公告与补丁

        Currently the SecurityFocus staff are not aware of any vendor supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at:

- 漏洞信息 (19673)

Microsoft Windows 95/98/NT 4.0 Help File Trojan Vulnerability (EDBID:19673)
windows local
1999-12-10 Verified
0 Pauli Ojanpera
N/A [点击下载]

The help files for the Windows Help system (*.cnt, *.hlp) can be edited so that they run an arbitrary executable when selected by a user. The executable will run at the privelege level of the user.

The *.cnt files are like tables of contents that tell the help system what to open when each topic is selected. These entries can be edited to cause system and DLL calls and programs to be executed when a topic is chosen. The help files themselves, *.hlp, can be edited in a similar manner.

- Delete C:\Program Files\Microsoft Office\Office\WDMAIN8.GID
(kill winhlp32.exe process if necessary)

- Edit C:\Program Files\Microsoft Office\Office\WDMAIN8.CNT
which is a text file. You should change the line which has
something like:

3 Word 97 new features=woidxWhatsNewInMicrosoftWord97@wdnew8.hlp>REF

to read:

3 Word 97 new features=!EF("CMD.EXE","",1)

- Run WinWord and select Help|Contents from menubar.
- Find topic "Word 97 new features" and select it.
- You should see CMD.EXE to run. 		

- 漏洞信息

Microsoft Windows Help System File Manipulation Local Privilege Escalation
Local Access Required Input Manipulation
Loss of Integrity
Exploit Public

- 漏洞描述

- 时间线

1999-12-07 Unknow
1999-12-07 Unknow

- 解决方案


Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete