NT的密碼究竟放在哪

根據(jù)以前的發(fā)現(xiàn),windowsNT密碼雖然不象Windows95那樣以簡單加密形式包含在一個文件里面,而是一些雜亂的暗碼,分別藏在7個不同的地方。這篇最新發(fā)表的文章告訴我們WindowsNT密碼隱藏的第八個地方。Date: Mon, 22 Feb 1999 11:26:41 +0100

" e/ T7 B6 a$ hFrom: Patrick CHAMBET <pchambet@club-internet.fr>
4 B9 S. ^6 l( M9 W1 H7 q& }! C! g
' T$ s9 r4 k% S7 GTo: sans@clark.net
Subject: Alert: IIS 4.0 metabase can reveal plaintext passwords
* D5 c  L1 Z' i; Y. {$ M# GHi all,
; ^+ J* ?1 b1 |7 r' J4 vWe knew that Windows NT passwords are stored in 7 different places across
the system. Here is a 8th place: the IIS 4.0 metabase.
  z" T  U* I9 r: y! c5 V$ C# M& FIIS 4.0 uses its own configuration database, named "metabase", which can
be compared to the Windows Registry: the metabase is organised in Hives,
Keys and Values. It is stored in the following file:
' p  p5 s: [6 _$ wC:\WINNT\system32\inetsrv\MetaBase.bin
The IIS 4.0 metabase contains these passwords:
) Z4 @, n3 L/ Q9 y& t- IUSR_ComputerName account password (only if you have typed it in the
MMC)
  x, n2 e" g8 @4 M- a+ p2 x- IWAM_ComputerName account password (ALWAYS !)
- UNC username and password used to connect to another server if one of
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 SYSTEM
( d& s: ?: l& `* J7 |  ^7 V4 c& q# Nhave permissions on this file.
( Y4 @) E/ \2 `' WBUT a few lines of script in a WSH script or in an ASP page allow to print
6 \: z6 `0 o/ v& Q4 ^  gthese passwords in CLEAR TEXT.
: P  V% T' u# o5 AThe user name and password used to connect to the Logs DSN could allow a
; B( D5 P- i  umalicious user to delete traces of his activities on the server.
: i" H. x) ~+ Y  o* qObviously this represents a significant risk for Web servers that allow
  Z+ a9 L0 }1 L1 k7 s& `logons and/or remote access, although I did not see any exploit of the
8 M$ E7 u# ^4 p  [problem I am reporting yet. Here is an example of what can be gathered:
! y" D  e8 w3 G4 z"
IIS 4.0 Metabase
?Patrick Chambet 1998 - pchambet@club-internet.fr
9 k4 e1 M& \- n! y. ?& `- }4 Y' `--- UNC User ---
UNC User name: 'Lou'
- E0 W8 o* ^" lUNC User password: 'Microsoft'
UNC Authentication Pass Through: 'False'
7 b7 a5 r8 U# ^/ D& G/ @--- Anonymous User ---
& _# w1 ~5 l! B5 {Anonymous User name: 'IUSR_SERVER'
- ]8 s0 x' c: J# ]: hAnonymous User password: 'x1fj5h_iopNNsp'
7 W- ?. g9 C# f/ ZPassword synchronization: 'False'
--- IIS Logs DSN User ---
6 g3 R! U! X, Y) Q* x1 ^1 eODBC DSN name: 'HTTPLOG'
ODBC table name: 'InternetLog'
ODBC User name: 'InternetAdmin'
$ w! K; y4 L& P2 X9 W/ Y! r4 R- oODBC User password: 'xxxxxx'
) O, C, n3 S& ^% _+ ~4 o--- Web Applications User ---
WAM User name: 'IWAM_SERVER'
* J# A/ {4 R: ]$ k. M: y# TWAM User password: 'Aj8_g2sAhjlk2'
+ I5 L- w1 U: T  ?' `* iDefault Logon Domain: ''
& E4 D' d/ q7 h* e1 b"
For example, you can imagine the following scenario:
$ }5 G9 j5 q; p/ ^A user Bob is allowed to logon only on a server hosting IIS 4.0, say
; H8 a3 T' {2 Gserver (a). He need not to be an Administrator. He can be for example
& f8 C) L" O( y; van IIS 4.0 Web Site Operator. Then, he launches a WSH script that extracts
the login name and password of the account used to access to a virtual
directory located on another server, say (b).
6 Q6 `9 U3 {. W9 i  z5 O3 B' FNow, Bob can use these login name and passord to logon on server (b).
And so forth...
6 [  Q0 h& v  ZMicrosoft was informed of this vulnerability.
. B( W0 M( C" d* b4 d( l7 C0 u& n_______________________________________________________________________
7 \3 [6 B" L9 A% U/ m% tPatrick CHAMBET - pchambet@club-internet.fr
0 T( X, e+ h& W/ [0 jMCP NT 4.0
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