標(biāo)題: NT的密碼究竟放在哪 [打印本頁] 作者: 雜七雜八 時間: 2011-1-12 21:01 標(biāo)題: 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 5 Q9 H: J5 O. f$ }1 J0 h+ Q+ D1 h& Q8 U' Y
From: Patrick CHAMBET <pchambet@club-internet.fr> # R4 j$ i& n3 s; B ; ?0 M& b5 M CTo: sans@clark.net4 {: ^: F+ a! B+ d2 [
Subject: Alert: IIS 4.0 metabase can reveal plaintext passwords6 l6 h) F& o2 R6 N' h
Hi all, / C3 z2 @. b: D6 z# w BWe knew that Windows NT passwords are stored in 7 different places across & S3 h! h7 V( J6 P& D8 |6 {5 R5 Pthe system. Here is a 8th place: the IIS 4.0 metabase. , S# j( x4 a2 c: ^1 @9 I; dIIS 4.0 uses its own configuration database, named "metabase", which can ' X; s+ g& t$ c/ Q) E2 p7 mbe compared to the Windows Registry: the metabase is organised in Hives,# m% {+ ^) f; H& o
Keys and Values. It is stored in the following file: . F" V9 ~5 v: ~8 F7 P9 EC:\WINNT\system32\inetsrv\MetaBase.bin ' L6 U# k/ H/ f9 \. @The IIS 4.0 metabase contains these passwords: 3 e5 u( T3 o- g) X* a- IUSR_ComputerName account password (only if you have typed it in the * E' ~, e0 F# j! H; R: P' h( [MMC)5 A: j3 {% N& \9 j+ E0 F. J
- IWAM_ComputerName account password (ALWAYS !)$ f2 o! z( U: o. E7 W
- UNC username and password used to connect to another server if one of , Y' q& E5 [4 ~" P: E9 Lyour virtual directories is located there.9 u) N/ V) X& d2 J
- The user name and password used to connect to the ODBC DSN called : w' L4 i2 }& W2 R"HTTPLOG" (if you chose to store your Logs into a database).$ c8 n4 @1 `3 I2 s' h
Note that the usernames are in unicode, clear text, that the passwords are2 A) C5 p+ K8 t; z( _
srambled in the metabase.ini file, and that only Administrators and SYSTEM8 b, Z2 L8 E2 m+ O* t- W
have permissions on this file.8 X6 D0 L1 |. f/ V) p; }8 W; Q1 w
BUT a few lines of script in a WSH script or in an ASP page allow to print 0 ]6 j9 X( U1 R7 x/ q @these passwords in CLEAR TEXT. - R5 s9 W7 K8 u# y7 r. [! A) xThe user name and password used to connect to the Logs DSN could allow a8 U( N! w& C8 Q7 {2 y
malicious user to delete traces of his activities on the server.9 R) a: Y( [3 z1 W
Obviously this represents a significant risk for Web servers that allow 3 l; T; j$ N* K" C" n+ c( Ologons and/or remote access, although I did not see any exploit of the' O( Z& u# d5 R
problem I am reporting yet. Here is an example of what can be gathered:/ W+ ~0 n/ v) ^. [$ m
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IIS 4.0 Metabase " f- Q x' e2 j5 q?Patrick Chambet 1998 - pchambet@club-internet.fr# J5 S6 d6 J3 R# g* A
--- UNC User ---" V7 Q ]3 o$ y3 |
UNC User name: 'Lou' 5 A8 E8 P! S8 F! RUNC User password: 'Microsoft'5 K$ I- `, D. h4 t7 C6 k' i7 [- {
UNC Authentication Pass Through: 'False'! Q$ Q- c% z* E' m
--- Anonymous User ---( m+ j4 e; n+ p, T4 a
Anonymous User name: 'IUSR_SERVER'+ O; p/ c" L: p
Anonymous User password: 'x1fj5h_iopNNsp' 6 p% e" s1 v, F9 v! N8 w' v zPassword synchronization: 'False'7 W9 k% \% C3 w ~
--- IIS Logs DSN User --- 5 f: F0 O- L- |) QODBC DSN name: 'HTTPLOG'( }& X8 ^* ~2 N9 U) J% F( `
ODBC table name: 'InternetLog' # e, U7 T: j' p) ~6 O. U. tODBC User name: 'InternetAdmin'3 ?, [6 H9 C2 l' p# V
ODBC User password: 'xxxxxx' ) w+ t6 l- B- K9 r3 X--- Web Applications User --- 0 b e; `. O' q8 AWAM User name: 'IWAM_SERVER'2 A: Q+ q/ ]' ^: E' d
WAM User password: 'Aj8_g2sAhjlk2' 2 j' t* Z1 [# {- y1 I' ~4 EDefault Logon Domain: ''* i9 Y: d/ l1 {9 w- n# J5 `7 f) |
" & ~% V z @$ Z/ |1 @7 wFor example, you can imagine the following scenario:3 @3 j; |0 i$ O( K+ [& ~: |
A user Bob is allowed to logon only on a server hosting IIS 4.0, say 8 O6 V2 w& ?: k$ {" Sserver (a). He need not to be an Administrator. He can be for example 4 J$ |( u/ _' _7 A& W% f, Aan IIS 4.0 Web Site Operator. Then, he launches a WSH script that extracts/ L/ ~7 q5 L, z& a' A+ Y9 o7 F
the login name and password of the account used to access to a virtual . I" j7 U0 q' l5 X; u* fdirectory located on another server, say (b). % y/ b$ z1 O' E8 i; kNow, Bob can use these login name and passord to logon on server (b). 0 a7 e) ]' D0 w: b1 hAnd so forth... 3 V4 w. j. H" {6 U, C* A! ?Microsoft was informed of this vulnerability.7 N: k* O$ }9 p) D) p# c) g$ F
_______________________________________________________________________/ ]1 z+ R" G* v4 W6 X9 A
Patrick CHAMBET - pchambet@club-internet.fr6 K& `$ i2 I7 C8 D1 o8 U( I
MCP NT 4.09 f1 V7 U7 T- u2 O+ [
Internet, Security and Microsoft solutions " L. V4 s8 u* k9 u2 ve-business Services 1 O) n1 h6 ^7 q" R9 `" L; H; fIBM Global Services( I, T2 O8 e+ X& |0 s& [+ j/ A