发信人: sanvador()
整理人: webfan(2000-07-29 23:20:06), 站内信件
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大家好!
今天在网易转悠,看见了一篇题为<NT的密码究竟放在哪>的文章,全是英文，看起
来十分的不爽!!!所以决定自己把它给改成中文(呵呵,多么丰富的一种语言!).希
望对朋友们有用.
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根据以前的发现,windowsNT密码虽然不象Windows95那样以简单加密形式包含在一
个文件里面,而是一些杂乱的暗码,分别藏在7个不同的地方。这篇最新发表的文章
告诉我们WindowsNT 密码隐藏的第八个地方。
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警告:IIS 4.0 matebase 可能暴露明文密码
咳,听了,
我们已经知道了Windows NT的密码是存储在系统中的7个不同的地方.其实还有第
8个位置:IIS 4.0 的meatbase. IIS 4.0使用它自己的配置数据库,叫做matebase
. 将它与NT的注册表比较, magebase 是由字元、键和键值组成的。它被存储为下
面的文件：
c:\winnt\system32\inetsrv\MetaBase.bin
这个MetaBase包含下列密码：
-IUSR_ComputerName 帐号密码（只有你在MMC中输入的密码）
-IWAM_ComputerName 帐号密码（始终存在）
-UNC 连接另一台服务器上虚拟路径的用户名和密码
连接到ODBC DSN 中用于调用“HTTPLOG”的用户名和密码（如果你选择将日志文
件存到数据库中的话）。
注意在metabase.ini文件中用户名是UNICODE编码，明文；密码被加密了（不好意
思，srambled这个单词不认识...大概是被改写、加密的意思吧..呵呵，还请高手
指教！！）。只有管理员和系统组里的人才有权限访问这个文件。但是写几行WS
H脚本或者用ASP页就可以打印明文密码了。
连接于日志DSN的用户名和密码允许怀有恶意的用户删除服务器上的活动跟踪记录
。很明显这在WEB服务器上允许登录上网和远程访问是一个很冒险的行为。不过从
我发现这个问题到现在还没有人利用了这个漏洞。（呵呵...这个坏小子现在就教
你怎么利用它了...）。下面是一个例子：
:
"
IIS 4.0 Metabase
?Patrick Chambet 1998 - [email protected]
--- UNC User ---
UNC User name: 'Lou'
UNC User password: 'Microsoft'
UNC Authentication Pass Through: 'False'
--- Anonymous User ---
Anonymous User name: 'IUSR_SERVER'
Anonymous User password: 'x1fj5h_iopNNsp'
Password synchronization: 'False'
--- IIS Logs DSN User ---
ODBC DSN name: 'HTTPLOG'
ODBC table name: 'InternetLog'
ODBC User name: 'InternetAdmin'
ODBC User password: 'xxxxxx'
--- Web Applications User ---
WAM User name: 'IWAM_SERVER'
WAM User password: 'Aj8_g2sAhjlk2'
Default Logon Domain: ''
"
例如，你可以想象下面的情况：
用户BOB被允许在IIS 4.0服务器主机a登录。他不必是管理员。假如他是一个网站
操作员，他就可以执行一段WSH脚本解开用于访问虚拟路径位于另一台服务器b上
的用户名和密码。现在，BOB就可以用这些用户名和密码登录服务器b，然后如此
...
微软公司已被告之这个问题了。
-------------------------------------------------------
Sanvador小译
附英文原文：
From: Patrick CHAMBET <[email protected]>
To: [email protected]
Subject: Alert: IIS 4.0 metabase can reveal plaintext passwords
Hi all,
We knew that Windows NT passwords are stored in 7 different places acr
oss
the system. Here is a 8th place: the IIS 4.0 metabase.
IIS 4.0 uses its own configuration database, named "metabase", which c
an
be compared to the Windows Registry: the metabase is organised in Hive
s,
Keys and Values. It is stored in the following file:
C:\WINNT\system32\inetsrv\MetaBase.bin
The IIS 4.0 metabase contains these passwords:
- IUSR_ComputerName account password (only if you have typed it in the
MMC)
- IWAM_ComputerName account password (ALWAYS !)
- UNC username and password used to connect to another server if one o
f
your virtual directories is located there.
- The user name and password used to connect to the ODBC DSN called
"HTTPLOG" (if you chose to store your Logs into a database).
Note that the usernames are in unicode, clear text, that the passwords
are
srambled in the metabase.ini file, and that only Administrators and SY
STEM
have permissions on this file.
BUT a few lines of script in a WSH script or in an ASP page allow to p
rint
these passwords in CLEAR TEXT.
The user name and password used to connect to the Logs DSN could allow
a
malicious user to delete traces of his activities on the server.
Obviously this represents a significant risk for Web servers that allo
w
logons and/or remote access, although I did not see any exploit of the
problem I am reporting yet. Here is an example of what can be gathered
:
"
IIS 4.0 Metabase
?Patrick Chambet 1998 - [email protected]
--- UNC User ---
UNC User name: 'Lou'
UNC User password: 'Microsoft'
UNC Authentication Pass Through: 'False'
--- Anonymous User ---
Anonymous User name: 'IUSR_SERVER'
Anonymous User password: 'x1fj5h_iopNNsp'
Password synchronization: 'False'
--- IIS Logs DSN User ---
ODBC DSN name: 'HTTPLOG'
ODBC table name: 'InternetLog'
ODBC User name: 'InternetAdmin'
ODBC User password: 'xxxxxx'
--- Web Applications User ---
WAM User name: 'IWAM_SERVER'
WAM User password: 'Aj8_g2sAhjlk2'
Default Logon Domain: ''
"
For example, you can imagine the following scenario:
A user Bob is allowed to logon only on a server hosting IIS 4.0, say
server (a). He need not to be an Administrator. He can be for example
an IIS 4.0 Web Site Operator. Then, he launches a WSH script that extr
acts
the login name and password of the account used to access to a virtual
directory located on another server, say (b).
Now, Bob can use these login name and passord to logon on server (b).
And so forth...
Microsoft was informed of this vulnerability.
______________________________________________________________________
_
Patrick CHAMBET - [email protected]
MCP NT 4.0
Internet, Security and Microsoft solutions
e-business Services
IBM Global Services
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