標(biāo)題: NT的密碼究竟放在哪 [打印本頁] 作者: 雜七雜八 時(shí)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(jiǎn)單加密形式包含在一個(gè)文件里面,而是一些雜亂的暗碼,分別藏在7個(gè)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(gè)地方。Date: Mon, 22 Feb 1999 11:26:41 +0100 " w# J: N, ]: m* k( P ) _8 Y% b% D# Q Q% C9 hFrom: Patrick CHAMBET <pchambet@club-internet.fr>0 d- y# q; a. W/ U; E
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To: sans@clark.net & u3 k% p# e9 ]! c" }8 c5 _Subject: Alert: IIS 4.0 metabase can reveal plaintext passwords- t" U; C/ I! T& c, I5 c
Hi all, ! B {$ ~# a" u y/ g/ k6 [We knew that Windows NT passwords are stored in 7 different places across # a; Q+ d, B* @( ~ m3 nthe system. Here is a 8th place: the IIS 4.0 metabase./ _# E$ M$ O+ {2 K/ a
IIS 4.0 uses its own configuration database, named "metabase", which can ! f% \# z' M, ^$ E6 d7 S$ wbe compared to the Windows Registry: the metabase is organised in Hives, % {6 h' P" m" P7 TKeys and Values. It is stored in the following file: 6 u, z& m& ^: DC:\WINNT\system32\inetsrv\MetaBase.bin . X6 y* O. H6 ~The IIS 4.0 metabase contains these passwords:1 V3 b- L) b; N
- IUSR_ComputerName account password (only if you have typed it in the: N$ z2 U$ h) F( a
MMC) 3 q N4 a8 D2 C. V d) O8 b7 E5 d- IWAM_ComputerName account password (ALWAYS !)( g# Q) v* I; n/ k" W T k D, n
- UNC username and password used to connect to another server if one of- F; X& t% M% c% A9 `
your virtual directories is located there. ; n) p8 e* r1 ?/ L* E: k: X- The user name and password used to connect to the ODBC DSN called 1 O. i6 H$ m) V) I- ]4 f9 ^% R" W"HTTPLOG" (if you chose to store your Logs into a database).8 x' @' \3 _7 U0 B6 f
Note that the usernames are in unicode, clear text, that the passwords are. P$ d( z9 @. H, m9 @
srambled in the metabase.ini file, and that only Administrators and SYSTEM 0 ]4 O' t" z0 _# Jhave permissions on this file. : S. D0 N7 B* M6 Y, \6 X$ lBUT a few lines of script in a WSH script or in an ASP page allow to print 4 o4 U9 l- P7 b* v' ithese passwords in CLEAR TEXT. ! ]8 C3 h3 q$ V2 \The user name and password used to connect to the Logs DSN could allow a ( ~- s, V6 F$ Dmalicious user to delete traces of his activities on the server. 9 f3 f8 c/ V9 [6 H4 R; l2 {) SObviously this represents a significant risk for Web servers that allow" A( U2 D. r+ ~4 U) s* E1 \. n
logons and/or remote access, although I did not see any exploit of the 0 _; {1 o s7 Y$ ]0 d% b2 t' ?problem I am reporting yet. Here is an example of what can be gathered:* I* O1 s3 n' a( V2 `) L' I: S. S
" . t. p2 q: X' PIIS 4.0 Metabase: S. i/ e z3 v. x: I# @
?Patrick Chambet 1998 - pchambet@club-internet.fr8 V# x8 ~4 w L
--- UNC User ---- n8 r" Y5 o; }
UNC User name: 'Lou' , V8 z* h8 j7 ^0 L# VUNC User password: 'Microsoft' & ?" t9 j" V$ E2 jUNC Authentication Pass Through: 'False' ! @9 n2 @' U0 R8 c$ W2 @--- Anonymous User ---9 g% j1 R! N Y- I3 l
Anonymous User name: 'IUSR_SERVER'+ C( o; R7 m# u/ [8 {0 u
Anonymous User password: 'x1fj5h_iopNNsp'- A1 O. E- Z9 H; ]5 K* U
Password synchronization: 'False' ! r3 H' d h, {--- IIS Logs DSN User ---( f c9 q/ v2 `# N8 w
ODBC DSN name: 'HTTPLOG' 9 v0 d; t' x }: j MODBC table name: 'InternetLog'6 `; }- }7 ^; O
ODBC User name: 'InternetAdmin' : ]* E: y+ x( G+ ]" ]6 rODBC User password: 'xxxxxx'+ Q* L" T- j* C* U/ s7 A
--- Web Applications User --- 4 Z0 m, u% i* O( K L3 R; @WAM User name: 'IWAM_SERVER' ( {( ?8 b6 k: m/ KWAM User password: 'Aj8_g2sAhjlk2' ' q- a* ?: r! W, f2 |1 K1 m& G' mDefault Logon Domain: '' 9 u) a6 A8 \% F i: \* x' v8 F" 5 u! \* P9 U. LFor example, you can imagine the following scenario:1 j3 ~7 Z! t( ~. c0 a- s% o: Z
A user Bob is allowed to logon only on a server hosting IIS 4.0, say / n* H+ z1 `3 n, Oserver (a). He need not to be an Administrator. He can be for example 3 {, Y* S- U# T6 Y- ^an IIS 4.0 Web Site Operator. Then, he launches a WSH script that extracts% a) B! M( k+ q# t. z
the login name and password of the account used to access to a virtual$ T/ ^6 w8 n% w a, m! s( X, z k
directory located on another server, say (b). ' |( P! j, j3 {" ANow, Bob can use these login name and passord to logon on server (b).2 n- N# Z1 F4 n6 t# \# g) }, Y
And so forth... 1 d! Y9 F+ |& wMicrosoft was informed of this vulnerability.- j( n0 z4 [5 h V
_______________________________________________________________________ 4 A- i1 ^1 n/ I! }, i& [4 bPatrick CHAMBET - pchambet@club-internet.fr$ e% e- e( l3 Y1 O: B. u
MCP NT 4.0( a* }: O( L0 e4 _; \
Internet, Security and Microsoft solutions 7 U! p+ A5 M$ @4 _, _e-business Services ! Y0 M6 Y# Z. v' A, d5 e) j) t! cIBM Global Services0 D0 ^. N' z6 }' z7 ]. s/ r